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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Sun Jun 7 13:01:10 2026 (UTC+1000).

Active BGP entries (FIB)

Table Size Metrics

The trend of the size of the BGP Forwarding Table (FIB). Also the underlying BGP Routing Table (RIB). The RIB/FIB ratio is a function of the number of BGP peering sessions at the sample point. Some RIB entries are marked as unusable as an outcome of protocol operation, and these categories of unusable advertisements are tracked.

FIB / RIB Table Reports (plots)	Data Sets(txt)
Active BGP entries (FIB)	1058464	Change in FIB Size	73	Change (%)	0.007
All BGP entries (RIB)	3157475
RIB/FIB ratio (3157475/1058464)	2.9831
Valid entries	3157475
Suppressed RIB entries	0
Damped entries	0
History entries	0

Address Span Metrics

The total span of address space advertised in the BGP table, and the relationship of this value to the number and size of address prefix objects in the table.

Address Space Reports (plots)	Data Sets(txt)
Total address space advertised (/32 equiv)	3105478400
Total address space advertised (prefix length)	0.46783161
Percentage of IPv4 space advertised (3105478400/4294967295)	72.305053
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2934
Average address span (as prefix size)	20.4818
Average prefix length	22.9558

More Specifics

The characteristics of more specific advertisements - where an advertisement is associated with a sub-span of address space of another advertisement. The metrics also look at the degree of similarity of the AS paths of the specific advertisements to the encompassing aggregate.

More-Specific Advertisement Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Entries advertising more specific prefixes of aggregates	537352	Specifics as % of FIB entries (537352/1058464)	50.7671
Specifics as % of address span (1097318793/3105478400)	35.3349
Specifics where AS prepended Path matches aggregate	239995	AS-P_Path-Match % (239995/537352)	44.66
AS Path matches aggregate	259875	AS-Path-Match % (259875/537352)	48.3622
AS Origin matches aggregate	408474	AS-Origin-Match % (408474/537352)	76.0161
Root Prefixes	521112
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	463998
Root Prefixes with depth 1	46800
Root Prefixes with depth 2	8467
Root Prefixes with depth 3	1416
Root Prefixes with depth 4	330
Root Prefixes with depth 5	68
Root Prefixes with depth 6	27
Root Prefixes with depth 7	5
Root Prefixes with depth 8	1

AS Numbers

The time trend of the number of unique AS numbers advertised within the BGP table. The associated metrics characterise AS's into origin only, transit only, or mixed (origin and transit), and also look at the trends of advertised address space as related to the number of ASes.

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique ASes	78800	ASes visible in only one AS path	47029
Origin only ASes	67279	Origin ASs announced via a single AS path	46462
Transit only ASes	610	Originating AS ATOM count	78190
Mixed ASes	10911	Originating AS ATOM compression	0.0739
Multi-Origin Prefixes	1164
ASes originating a single prefix	27709
Average FIB entries per Origin AS	13.5371	Maximum entries for an origin AS (AS7713)	3729
Average address range span for an origin AS	39717.0789	Maximum address range for an origin AS (AS749)	227729152

AS Paths

The time trend of the number of unique AS Paths advertised within the BGP table. The associated metrics look at trends of average path length, and BGP table entries per path.

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique AS Paths	276781	Unique AS prepended Paths	294833
AS Paths used in FIB	133495	AS Paths using prepending	66895
AS paths associated with a single FIB entry	64587	AS Paths using private ASs	21
Average AS path length	5.3041	Number of Prefixes with Selected AS Prepending Paths	144514
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	144514
Average address weighted AS path length	6.5484	Maximum prepended AS Path length	70
Average entries per AS Path	3.8242	Average entries per FIB AS Path	7.9289
AS Paths per origin AS	3.5399	FIB AS Paths per origin AS	1.7073
AS PATH ATOM compression	0.1261

Prefix Length Distributions

The time trend of the distribution of BGP Table entries by address prefix length.

Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	14	% Prefix /9	0.00
Prefix count /10	39	% Prefix /10	0.00
Prefix count /11	95	% Prefix /11	0.01
Prefix count /12	298	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1191	% Prefix /14	0.11
Prefix count /15	2118	% Prefix /15	0.20
Prefix count /16	13630	% Prefix /16	1.29
Prefix count /17	8385	% Prefix /17	0.79
Prefix count /18	13468	% Prefix /18	1.27
Prefix count /19	25783	% Prefix /19	2.44
Prefix count /20	47067	% Prefix /20	4.45
Prefix count /21	53153	% Prefix /21	5.02
Prefix count /22	114236	% Prefix /22	10.79
Prefix count /23	109150	% Prefix /23	10.31
Prefix count /24	668537	% Prefix /24	63.16
Prefix count /25	695	% Prefix /25	0.07
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	0	% Prefix /27	0.00
Prefix count /28	0	% Prefix /28	0.00
Prefix count /29	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	4	% Prefix /31	0.00
Prefix count /32	1	% Prefix /32	0.00

Root Prefix Length Distributions

The time trend of the distribution of Root BGP Table entries by address prefix length.

Root Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Root Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	9	% Prefix /9	0.00
Prefix count /10	39	% Prefix /10	0.01
Prefix count /11	90	% Prefix /11	0.02
Prefix count /12	263	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.09
Prefix count /14	1013	% Prefix /14	0.19
Prefix count /15	1622	% Prefix /15	0.31
Prefix count /16	10822	% Prefix /16	2.08
Prefix count /17	4522	% Prefix /17	0.87
Prefix count /18	7173	% Prefix /18	1.38
Prefix count /19	14936	% Prefix /19	2.87
Prefix count /20	20993	% Prefix /20	4.03
Prefix count /21	22946	% Prefix /21	4.40
Prefix count /22	60808	% Prefix /22	11.67
Prefix count /23	46348	% Prefix /23	8.89
Prefix count /24	329020	% Prefix /24	63.14
Prefix count /25	6	% Prefix /25	0.00
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	0	% Prefix /27	0.00
Prefix count /28	0	% Prefix /28	0.00
Prefix count /29	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	0	% Prefix /32	0.00

AS Diameter Reports

The time trend of the reacahbility of addresses and AS's using AS distance from the sample point to the origin AS as the diameter metric.

AS Diameter Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Addresses by AS distance	(data)	Address percentage by AS distance	(data)
Addresses at AS distance 0	256	% Addresses at AS distance 0	0.0
Addresses at AS distance 1	4864	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	219145993	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1236968960	% Addresses at AS distance 3	29.4
Addresses at AS distance 4	1967612672	% Addresses at AS distance 4	46.8
Addresses at AS distance 5	591545472	% Addresses at AS distance 5	14.1
Addresses at AS distance 6	165260416	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	14257408	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7683712	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	280576	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	34304	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	512	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	768	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	0	% Addresses at AS distance 13	0.0
Addresses at AS distance 14	1280	% Addresses at AS distance 14	0.0
Addresses at AS distance 15	0	% Addresses at AS distance 15	0.0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	256	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	5120	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	219151113	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1456120073	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3423732745	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4015278217	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4180538633	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4194796041	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4202479753	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4202760329	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4202794633	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4202795145	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4202795913	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4202795913	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4202797193	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4202797193	% Addresses reachable within 15 AS hops	100

ASes by AS distance	(data)	% ASes by AS hops	(data)
ASes reachable at 0 AS hops	1	% ASes reachable at 0 AS hops	0
ASes reachable at 1 AS hops	2	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	305	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6589	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	30995	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31300	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7839	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1392	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	306	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	45	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	10	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	4	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	4	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	4	% ASes reachable at 13 AS hops	0
ASes reachable at 14 AS hops	4	% ASes reachable at 14 AS hops	0
ASes reachable at 15 AS hops	0	% ASes reachable at 15 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	308	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6897	Cumulative % ASes by AS hops 3	8.8
ASes reachable by 4 AS hops	37892	Cumulative % ASes by AS hops 4	48.1
ASes reachable by 5 AS hops	69192	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	77031	Cumulative % ASes by AS hops 6	97.8
ASes reachable by 7 AS hops	78423	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78729	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78774	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78784	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78788	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78792	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78796	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78800	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78800	Cumulative % ASes by AS hops 15	100.0

BGP Update Reports

Compares the current BGP Table with the previous table and reports on the number of changes in the FIB. These changes are further categorised into announcements, withdrawls and path changes, and further categorised by prefix length.

FIB Update Reports	Data	Announce	Data	Withdraw	Data	Path Chg	Data
Table Updates	4277	New Entries	375	Removed Entries	297	Updated Entries	3605
		Report		Report		Report
Address Span	6224000	Address Span	233984	Address Span	182784	Address Span	5807232
Average address span per update	1455	Avg Span	623	Avg Span	615	Avg Span	1610
Average prefix size updated	22.84	Average prefix size	23.55	Average prefix size	23.70	Average prefix size	22.70
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /14 total	1	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	1
Prefix /15 total	1	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	1
Prefix /16 total	3	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	3
Prefix /17 total	4	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	4
Prefix /18 total	17	Prefix /18 announcements	0	Prefix /18 withdrawals	2	Prefix /18 path updates	15
Prefix /19 total	271	Prefix /19 announcements	12	Prefix /19 withdrawals	8	Prefix /19 path updates	251
Prefix /20 total	46	Prefix /20 announcements	0	Prefix /20 withdrawals	0	Prefix /20 path updates	46
Prefix /21 total	881	Prefix /21 announcements	10	Prefix /21 withdrawals	0	Prefix /21 path updates	871
Prefix /22 total	179	Prefix /22 announcements	18	Prefix /22 withdrawals	5	Prefix /22 path updates	156
Prefix /23 total	480	Prefix /23 announcements	43	Prefix /23 withdrawals	28	Prefix /23 path updates	409
Prefix /24 total	2159	Prefix /24 announcements	292	Prefix /24 withdrawals	254	Prefix /24 path updates	1613
Prefix /25 total	235	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	235
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	0	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	0
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	0.00	Prefix /8 announcements	0.00	Prefix /8 withdrawals	0.00	Prefix /8 path updates	0.00
Prefix /9 total	0.00	Prefix /9 announcements	0.00	Prefix /9 withdrawals	0.00	Prefix /9 path updates	0.00
Prefix /10 total	0.00	Prefix /10 announcements	0.00	Prefix /10 withdrawals	0.00	Prefix /10 path updates	0.00
Prefix /11 total	0.00	Prefix /11 announcements	0.00	Prefix /11 withdrawals	0.00	Prefix /11 path updates	0.00
Prefix /12 total	0.00	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	0.00
Prefix /13 total	0.00	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.00
Prefix /14 total	0.21	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.25
Prefix /15 total	0.12	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.14
Prefix /16 total	0.05	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.06
Prefix /17 total	0.12	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.14
Prefix /18 total	0.31	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.53	Prefix /18 path updates	0.33
Prefix /19 total	2.60	Prefix /19 announcements	1.31	Prefix /19 withdrawals	1.11	Prefix /19 path updates	2.86
Prefix /20 total	0.24	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.00	Prefix /20 path updates	0.29
Prefix /21 total	4.10	Prefix /21 announcements	0.53	Prefix /21 withdrawals	0.00	Prefix /21 path updates	4.81
Prefix /22 total	0.39	Prefix /22 announcements	0.44	Prefix /22 withdrawals	0.16	Prefix /22 path updates	0.40
Prefix /23 total	1.09	Prefix /23 announcements	1.11	Prefix /23 withdrawals	0.91	Prefix /23 path updates	1.10
Prefix /24 total	0.80	Prefix /24 announcements	1.23	Prefix /24 withdrawals	1.35	Prefix /24 path updates	0.71
Prefix /25 total	83.68	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	99.28
Prefix /26 total	0.00	Prefix /26 announcements	100.00	Prefix /26 withdrawals	100.00	Prefix /26 path updates	100.00
Prefix /27 total	0.00	Prefix /27 announcements	100.00	Prefix /27 withdrawals	100.00	Prefix /27 path updates	100.00
Prefix /28 total	0.00	Prefix /28 announcements	100.00	Prefix /28 withdrawals	100.00	Prefix /28 path updates	100.00
Prefix /29 total	0.00	Prefix /29 announcements	100.00	Prefix /29 withdrawals	100.00	Prefix /29 path updates	100.00
Prefix /30 total	0.00	Prefix /30 announcements	100.00	Prefix /30 withdrawals	100.00	Prefix /30 path updates	100.00
Prefix /31 total	0.00	Prefix /31 announcements	0.00	Prefix /31 withdrawals	0.00	Prefix /31 path updates	0.00
Prefix /32 total	0.00	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	0.00

FIB Update Rate Reports Updates per hour (Measurement Period 1 hrs 0 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	4277.000	New Entries	375.000	Removed Entries	297.000	Updated Entries	3605.000
Address Span	6224000.000	Address Span	233984.000	Address Span	182784.000	Address Span	5807232.000
Average address span per update	1455.000	Avg Span	623.000	Avg Span	615.000	Avg Span	1610.000
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /1 update rate	0.000	Prefix /1 announcements	0.000	Prefix /1 withdrawals	0.000	Prefix /1 path updates	0.000
Prefix /2 update rate	0.000	Prefix /2 announcements	0.000	Prefix /2 withdrawals	0.000	Prefix /2 path updates	0.000
Prefix /3 update rate	0.000	Prefix /3 announcements	0.000	Prefix /3 withdrawals	0.000	Prefix /3 path updates	0.000
Prefix /4 update rate	0.000	Prefix /4 announcements	0.000	Prefix /4 withdrawals	0.000	Prefix /4 path updates	0.000
Prefix /5 update rate	0.000	Prefix /5 announcements	0.000	Prefix /5 withdrawals	0.000	Prefix /5 path updates	0.000
Prefix /6 update rate	0.000	Prefix /6 announcements	0.000	Prefix /6 withdrawals	0.000	Prefix /6 path updates	0.000
Prefix /7 update rate	0.000	Prefix /7 announcements	0.000	Prefix /7 withdrawals	0.000	Prefix /7 path updates	0.000
Prefix /8 update rate	0.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	0.000	Prefix /8 path updates	0.000
Prefix /9 update rate	0.000	Prefix /9 announcements	0.000	Prefix /9 withdrawals	0.000	Prefix /9 path updates	0.000
Prefix /10 update rate	0.000	Prefix /10 announcements	0.000	Prefix /10 withdrawals	0.000	Prefix /10 path updates	0.000
Prefix /11 update rate	0.000	Prefix /11 announcements	0.000	Prefix /11 withdrawals	0.000	Prefix /11 path updates	0.000
Prefix /12 update rate	0.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	0.000
Prefix /13 update rate	0.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	0.000
Prefix /14 update rate	1.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	1.000
Prefix /15 update rate	1.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	1.000
Prefix /16 update rate	3.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	3.000
Prefix /17 update rate	4.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	4.000
Prefix /18 update rate	17.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	2.000	Prefix /18 path updates	15.000
Prefix /19 update rate	271.000	Prefix /19 announcements	12.000	Prefix /19 withdrawals	8.000	Prefix /19 path updates	251.000
Prefix /20 update rate	46.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	0.000	Prefix /20 path updates	46.000
Prefix /21 update rate	881.000	Prefix /21 announcements	10.000	Prefix /21 withdrawals	0.000	Prefix /21 path updates	871.000
Prefix /22 update rate	179.000	Prefix /22 announcements	18.000	Prefix /22 withdrawals	5.000	Prefix /22 path updates	156.000
Prefix /23 update rate	480.000	Prefix /23 announcements	43.000	Prefix /23 withdrawals	28.000	Prefix /23 path updates	409.000
Prefix /24 update rate	2159.000	Prefix /24 announcements	292.000	Prefix /24 withdrawals	254.000	Prefix /24 path updates	1613.000
Prefix /25 update rate	235.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	235.000
Prefix /26 update rate	0.000	Prefix /26 announcements	0.000	Prefix /26 withdrawals	0.000	Prefix /26 path updates	0.000
Prefix /27 update rate	0.000	Prefix /27 announcements	0.000	Prefix /27 withdrawals	0.000	Prefix /27 path updates	0.000
Prefix /28 update rate	0.000	Prefix /28 announcements	0.000	Prefix /28 withdrawals	0.000	Prefix /28 path updates	0.000
Prefix /29 update rate	0.000	Prefix /29 announcements	0.000	Prefix /29 withdrawals	0.000	Prefix /29 path updates	0.000
Prefix /30 update rate	0.000	Prefix /30 announcements	0.000	Prefix /30 withdrawals	0.000	Prefix /30 path updates	0.000
Prefix /31 update rate	0.000	Prefix /31 announcements	0.000	Prefix /31 withdrawals	0.000	Prefix /31 path updates	0.000
Prefix /32 update rate	0.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	0.000

Path Updates - Breakdown by Update Type

Examines those updates that involved a change of AS Path and breaks this down into five categories:

A change of origin AS (origin)
A change in the origin's nexthop AS (remote change)
A change in the transit AS path (transit)
A change in the firsthop AS (Local change)
A change in AS prepending (Traffic Engineering)

Total	Data	Origin	Data	Origin Next Hop	Data	Transit	Data	First Hop	Data	Prepend	Data
Total Path Changes	627	Origin Paths	64	NextHop Paths	228	Transit Paths	129	Paths	194	Paths	12
Report
/14 Tot	1	/14 Org	0	/14 Nxt	1	/14 Trn	0	/14 Fst	0	/14 Prp	0
/15 Tot	1	/15 Org	0	/15 Nxt	1	/15 Trn	0	/15 Fst	0	/15 Prp	0
/16 Tot	3	/16 Org	0	/16 Nxt	3	/16 Trn	0	/16 Fst	0	/16 Prp	0
/17 Tot	4	/17 Org	0	/17 Nxt	2	/17 Trn	1	/17 Fst	0	/17 Prp	1
/18 Tot	15	/18 Org	0	/18 Nxt	9	/18 Trn	2	/18 Fst	2	/18 Prp	2
/19 Tot	251	/19 Org	0	/19 Nxt	245	/19 Trn	1	/19 Fst	3	/19 Prp	2
/20 Tot	46	/20 Org	0	/20 Nxt	26	/20 Trn	14	/20 Fst	5	/20 Prp	1
/21 Tot	871	/21 Org	0	/21 Nxt	825	/21 Trn	37	/21 Fst	5	/21 Prp	4
/22 Tot	156	/22 Org	0	/22 Nxt	123	/22 Trn	22	/22 Fst	6	/22 Prp	5
/23 Tot	409	/23 Org	0	/23 Nxt	364	/23 Trn	24	/23 Fst	13	/23 Prp	8
/24 Tot	1613	/24 Org	7	/24 Nxt	1177	/24 Trn	320	/24 Fst	90	/24 Prp	19
/25 Tot	235	/25 Org	60	/25 Nxt	18	/25 Trn	0	/25 Fst	157	/25 Prp	0
/26 Tot	0	/26 Org	0	/26 Nxt	0	/26 Trn	0	/26 Fst	0	/26 Prp	0
/27 Tot	0	/27 Org	0	/27 Nxt	0	/27 Trn	0	/27 Fst	0	/27 Prp	0
/28 Tot	0	/28 Org	0	/28 Nxt	0	/28 Trn	0	/28 Fst	0	/28 Prp	0
/29 Tot	0	/29 Org	0	/29 Nxt	0	/29 Trn	0	/29 Fst	0	/29 Prp	0
/30 Tot	0	/30 Org	0	/30 Nxt	0	/30 Trn	0	/30 Fst	0	/30 Prp	0
/31 Tot	0	/31 Org	0	/31 Nxt	0	/31 Trn	0	/31 Fst	0	/31 Prp	0
/32 Tot	0	/32 Org	0	/32 Nxt	0	/32 Trn	0	/32 Fst	0	/32 Prp	0

AS Announcement Reports

The time trend of total span of address space advertised by ASes, using truncated prefix length as the span metric.

AS Announcements Reports	Data Sets(txt)	Percentage Reports	Data
Originating Addresses AS Count	(data)	Originating Addresses % AS Count	(data)
AS's announcing span of /4	2	% AS's announcing span of /4	0.0000
AS's announcing span of /5	5	% AS's announcing span of /5	0.0001
AS's announcing span of /6	11	% AS's announcing span of /6	0.0001
AS's announcing span of /7	20	% AS's announcing span of /7	0.0003
AS's announcing span of /8	40	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0009
AS's announcing span of /10	102	% AS's announcing span of /10	0.0013
AS's announcing span of /11	172	% AS's announcing span of /11	0.0022
AS's announcing span of /12	246	% AS's announcing span of /12	0.0031
AS's announcing span of /13	390	% AS's announcing span of /13	0.0050
AS's announcing span of /14	846	% AS's announcing span of /14	0.0108
AS's announcing span of /15	1620	% AS's announcing span of /15	0.0207
AS's announcing span of /16	1745	% AS's announcing span of /16	0.0223
AS's announcing span of /17	2426	% AS's announcing span of /17	0.0310
AS's announcing span of /18	3776	% AS's announcing span of /18	0.0483
AS's announcing span of /19	5097	% AS's announcing span of /19	0.0652
AS's announcing span of /20	7573	% AS's announcing span of /20	0.0969
AS's announcing span of /21	10431	% AS's announcing span of /21	0.1335
AS's announcing span of /22	13177	% AS's announcing span of /22	0.1686
AS's announcing span of /23	10468	% AS's announcing span of /23	0.1340
AS's announcing span of /24	19899	% AS's announcing span of /24	0.2547
AS's announcing span of /25	15	% AS's announcing span of /25	0.0002
AS's announcing span of /26	0	% AS's announcing span of /26	0.0000
AS's announcing span of /27	0	% AS's announcing span of /27	0.0000
AS's announcing span of /28	0	% AS's announcing span of /28	0.0000
AS's announcing span of /29	1	% AS's announcing span of /29	0.0000
AS's announcing span of /30	0	% AS's announcing span of /30	0.0000
AS's announcing span of /31	0	% AS's announcing span of /31	0.0000
AS's announcing span of /32	0	% AS's announcing span of /32	0.0000

AS Connectivity Reports

This set of reports lists all visible AS's using a number of ordering criteria. The reports order AS's by the total span of addresses originated by an AS, the total span of addresses reachable via an AS, and the totspan of originating plus transit addresses via each AS. Each AS in an AS path has an adjacent AS closer to the sample point, and an adjacent AS further from the sample point. The number of such pairwise adjacencies is reported for each AS. The average AS Connectivity Degree is the average number of adjacent AS's for an AS.

h h h

AS Connectivity Report	Data
AS Adjacency Count	128755
Average AS Connectivity Degree (257510/78800)	3.2679
Average AS Connectivity IN:OUT Degree	0.1520
AS Names
AS's ordered by Originating Address
AS's ordered by Transit Address
AS's ordered by Originating + Transit Address
AS's ordered by AS Adjacency
AS's ordered by Downstream AS Adjacency
AS's ordered by Upstream AS Adjacency
AS Adjacency
Inconsistent Origin AS Prefixes

Aggregation Reports

This set of reports lists all potential aggregation of a number of specific routes into an aggregate route. The aggregation criteria include a match of the original AS path, which may include prepended AS's, a match of the reduced AS Path, and a match on the Origin AS only. As this view is taken from a single sample point, this list is not definitive, and the report will propose potential aggregation actions which may not be feasible for the Origin AS. The report also applies a prefix length filter to all prefixes, accepting only those prefixes which pass the following ruleset:

24.0.0.0/8 accept prefix length <=20
61.0.0.0/8 accept prefix length <= 20
63.0.0.0/8 accept prefix length <= 20
64.0.0.0/8 accept prefix length <= 20
65.0.0.0/8 accept prefix length <= 20
66.0.0.0/8 accept prefix length <= 20
0.0.0.0/1 (0.0.0.0/8 through 126.0.0.0/8) accept prefix length <= 19
128.0.0.0/2 (128.0.0.0/8 through 191.0.0.0/8) accept prefix length <= 16
192.0.0.0/8 through 204.0.0.0/8 accept prefix length <=24
205.0.0.0/8 through 255.0.0.0/8 accept prefix length <=20

Aggregation possibilities are identified within this filtered prefix set.

Route Aggregation Reports	Data
Aggregation Potential Summary	(data)
Aggregation Potential Summary	(data)
Aggregation using prepended AS Path	597410	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	583495	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	408969	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	408984	Report (sort by %reduction)	Report (sort by reduction)	BGP Table

BGP Table

Table Summary Report

BGP Report

BGP data obtained from the boundary of AS65000

Report last updated at Sun Jun 7 13:01:10 2026 (UTC+1000).

Data prior to 11 April 97 interpreted from data gathered by Erik-Jan Bos, SURFnet.

BGP table analyser written and maintained by Geoff Huston.

Footnote

The name is a reference to a graph of the data. If the data is a single series then this is a simple time-series plot. If the data is a multi-series vector, the first graph is a compound graph of the time series of each element in the vector, the second is a relative plot using a common start point and looking at the relative change in the value of each element of the vector. The third is a relative plot, normalizing the start point to zero and looking at the absolute change in each element of the vector. The last isa distribution graph.
The value is a reference to the text raw data file. The text file uses a column format, with the first column representing the measurement time. The time base is the number of seconds since 1 January 1970 UTC. If you wish to convert this to Microsoft Excel time format, then divide this time