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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Tue Apr 28 19:01:10 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)	1051294	Change in FIB Size	-67	Change (%)	-0.006
All BGP entries (RIB)	3135632
RIB/FIB ratio (3135632/1051294)	2.9826
Valid entries	3135632
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)	3105388288
Total address space advertised (prefix length)	0.46787348
Percentage of IPv4 space advertised (3105388288/4294967295)	72.302955
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2954
Average address span (as prefix size)	20.4720
Average prefix length	22.9488

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	536392	Specifics as % of FIB entries (536392/1051294)	51.0221
Specifics as % of address span (1096348552/3105388288)	35.3047
Specifics where AS prepended Path matches aggregate	231166	AS-P_Path-Match % (231166/536392)	43.10
AS Path matches aggregate	248734	AS-Path-Match % (248734/536392)	46.3717
AS Origin matches aggregate	408768	AS-Origin-Match % (408768/536392)	76.2070
Root Prefixes	514902
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	458115
Root Prefixes with depth 1	46402
Root Prefixes with depth 2	8536
Root Prefixes with depth 3	1422
Root Prefixes with depth 4	324
Root Prefixes with depth 5	71
Root Prefixes with depth 6	26
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	78547	ASes visible in only one AS path	46773
Origin only ASes	67087	Origin ASs announced via a single AS path	46205
Transit only ASes	601	Originating AS ATOM count	77946
Mixed ASes	10859	Originating AS ATOM compression	0.0741
Multi-Origin Prefixes	1559
ASes originating a single prefix	27630
Average FIB entries per Origin AS	13.4875	Maximum entries for an origin AS (AS7713)	3688
Average address range span for an origin AS	39840.2521	Maximum address range for an origin AS (AS749)	227730944

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	278837	Unique AS prepended Paths	297000
AS Paths used in FIB	134288	AS Paths using prepending	67035
AS paths associated with a single FIB entry	65106	AS Paths using private ASs	15
Average AS path length	5.2985	Number of Prefixes with Selected AS Prepending Paths	141158
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	141158
Average address weighted AS path length	6.5502	Maximum prepended AS Path length	70
Average entries per AS Path	3.7703	Average entries per FIB AS Path	7.8287
AS Paths per origin AS	3.5773	FIB AS Paths per origin AS	1.7228
AS PATH ATOM compression	0.1277

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	296	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1195	% Prefix /14	0.11
Prefix count /15	2112	% Prefix /15	0.20
Prefix count /16	13659	% Prefix /16	1.30
Prefix count /17	8401	% Prefix /17	0.80
Prefix count /18	13479	% Prefix /18	1.28
Prefix count /19	25807	% Prefix /19	2.45
Prefix count /20	47069	% Prefix /20	4.48
Prefix count /21	53112	% Prefix /21	5.05
Prefix count /22	114326	% Prefix /22	10.87
Prefix count /23	108466	% Prefix /23	10.32
Prefix count /24	661925	% Prefix /24	62.96
Prefix count /25	691	% 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	0	% Prefix /31	0.00
Prefix count /32	8	% 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	262	% Prefix /12	0.05
Prefix count /13	487	% Prefix /13	0.09
Prefix count /14	1017	% Prefix /14	0.20
Prefix count /15	1624	% Prefix /15	0.32
Prefix count /16	10848	% Prefix /16	2.11
Prefix count /17	4516	% Prefix /17	0.88
Prefix count /18	7158	% Prefix /18	1.39
Prefix count /19	14931	% Prefix /19	2.90
Prefix count /20	20915	% Prefix /20	4.06
Prefix count /21	22912	% Prefix /21	4.45
Prefix count /22	60744	% Prefix /22	11.80
Prefix count /23	45972	% Prefix /23	8.93
Prefix count /24	323356	% Prefix /24	62.80
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	218656008	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1224557056	% Addresses at AS distance 3	29.1
Addresses at AS distance 4	1982606592	% Addresses at AS distance 4	47.2
Addresses at AS distance 5	588089216	% Addresses at AS distance 5	14.0
Addresses at AS distance 6	165963648	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	13774720	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7726080	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	331264	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	24064	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1792	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	0	% 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	218661128	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1443218184	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3425824776	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4013913992	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4179877640	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4193652360	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4201378440	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4201709704	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4201733768	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4201735560	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4201735560	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4201735560	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4201736840	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4201736840	% 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	298	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6599	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	31141	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31176	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7562	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1391	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	288	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	58	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	12	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	7	% 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	301	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6900	Cumulative % ASes by AS hops 3	8.8
ASes reachable by 4 AS hops	38041	Cumulative % ASes by AS hops 4	48.4
ASes reachable by 5 AS hops	69217	Cumulative % ASes by AS hops 5	88.1
ASes reachable by 6 AS hops	76779	Cumulative % ASes by AS hops 6	97.7
ASes reachable by 7 AS hops	78170	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78458	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78516	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78528	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78535	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78539	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78543	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78547	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78547	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	2599	New Entries	181	Removed Entries	253	Updated Entries	2165
		Report		Report		Report
Address Span	1459328	Address Span	92416	Address Span	226816	Address Span	1140096
Average address span per update	561	Avg Span	510	Avg Span	896	Avg Span	526
Average prefix size updated	23.61	Average prefix size	23.46	Average prefix size	23.42	Average prefix size	23.64
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	1	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	1
Prefix /17 total	1	Prefix /17 announcements	0	Prefix /17 withdrawals	1	Prefix /17 path updates	0
Prefix /18 total	4	Prefix /18 announcements	0	Prefix /18 withdrawals	2	Prefix /18 path updates	2
Prefix /19 total	7	Prefix /19 announcements	0	Prefix /19 withdrawals	5	Prefix /19 path updates	2
Prefix /20 total	30	Prefix /20 announcements	4	Prefix /20 withdrawals	7	Prefix /20 path updates	19
Prefix /21 total	170	Prefix /21 announcements	4	Prefix /21 withdrawals	7	Prefix /21 path updates	159
Prefix /22 total	182	Prefix /22 announcements	23	Prefix /22 withdrawals	16	Prefix /22 path updates	143
Prefix /23 total	181	Prefix /23 announcements	23	Prefix /23 withdrawals	23	Prefix /23 path updates	135
Prefix /24 total	1790	Prefix /24 announcements	127	Prefix /24 withdrawals	192	Prefix /24 path updates	1471
Prefix /25 total	233	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	233
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	0.00	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.00
Prefix /15 total	0.00	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.00
Prefix /16 total	0.03	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.04
Prefix /17 total	0.05	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.49	Prefix /17 path updates	0.00
Prefix /18 total	0.12	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.62	Prefix /18 path updates	0.07
Prefix /19 total	0.11	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.81	Prefix /19 path updates	0.04
Prefix /20 total	0.26	Prefix /20 announcements	0.49	Prefix /20 withdrawals	0.62	Prefix /20 path updates	0.20
Prefix /21 total	1.29	Prefix /21 announcements	0.44	Prefix /21 withdrawals	0.55	Prefix /21 path updates	1.45
Prefix /22 total	0.64	Prefix /22 announcements	1.17	Prefix /22 withdrawals	0.58	Prefix /22 path updates	0.61
Prefix /23 total	0.67	Prefix /23 announcements	1.23	Prefix /23 withdrawals	0.88	Prefix /23 path updates	0.60
Prefix /24 total	1.09	Prefix /24 announcements	1.11	Prefix /24 withdrawals	1.21	Prefix /24 path updates	1.08
Prefix /25 total	136.39	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	163.74
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	100.00	Prefix /31 withdrawals	100.00	Prefix /31 path updates	100.00
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	2598.278	New Entries	180.950	Removed Entries	252.930	Updated Entries	2164.399
Address Span	1458922.750	Address Span	92390.336	Address Span	226753.016	Address Span	1139779.375
Average address span per update	560.844	Avg Span	509.858	Avg Span	895.751	Avg Span	525.854
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	0.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	0.000
Prefix /15 update rate	0.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	0.000
Prefix /16 update rate	1.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	1.000
Prefix /17 update rate	1.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	1.000	Prefix /17 path updates	0.000
Prefix /18 update rate	3.999	Prefix /18 announcements	0.000	Prefix /18 withdrawals	1.999	Prefix /18 path updates	1.999
Prefix /19 update rate	6.998	Prefix /19 announcements	0.000	Prefix /19 withdrawals	4.999	Prefix /19 path updates	1.999
Prefix /20 update rate	29.992	Prefix /20 announcements	3.999	Prefix /20 withdrawals	6.998	Prefix /20 path updates	18.995
Prefix /21 update rate	169.953	Prefix /21 announcements	3.999	Prefix /21 withdrawals	6.998	Prefix /21 path updates	158.956
Prefix /22 update rate	181.949	Prefix /22 announcements	22.994	Prefix /22 withdrawals	15.996	Prefix /22 path updates	142.960
Prefix /23 update rate	180.950	Prefix /23 announcements	22.994	Prefix /23 withdrawals	22.994	Prefix /23 path updates	134.963
Prefix /24 update rate	1789.503	Prefix /24 announcements	126.965	Prefix /24 withdrawals	191.947	Prefix /24 path updates	1470.592
Prefix /25 update rate	232.935	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	232.935
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	706	Origin Paths	59	NextHop Paths	224	Transit Paths	200	Paths	197	Paths	26
Report
/16 Tot	1	/16 Org	0	/16 Nxt	0	/16 Trn	1	/16 Fst	0	/16 Prp	0
/17 Tot	0	/17 Org	0	/17 Nxt	0	/17 Trn	0	/17 Fst	0	/17 Prp	0
/18 Tot	2	/18 Org	0	/18 Nxt	0	/18 Trn	2	/18 Fst	0	/18 Prp	0
/19 Tot	2	/19 Org	0	/19 Nxt	2	/19 Trn	0	/19 Fst	0	/19 Prp	0
/20 Tot	19	/20 Org	0	/20 Nxt	2	/20 Trn	10	/20 Fst	6	/20 Prp	1
/21 Tot	159	/21 Org	0	/21 Nxt	15	/21 Trn	110	/21 Fst	34	/21 Prp	0
/22 Tot	143	/22 Org	0	/22 Nxt	48	/22 Trn	74	/22 Fst	20	/22 Prp	1
/23 Tot	135	/23 Org	0	/23 Nxt	56	/23 Trn	55	/23 Fst	24	/23 Prp	0
/24 Tot	1471	/24 Org	5	/24 Nxt	334	/24 Trn	797	/24 Fst	259	/24 Prp	76
/25 Tot	233	/25 Org	59	/25 Nxt	10	/25 Trn	0	/25 Fst	164	/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	73	% AS's announcing span of /9	0.0009
AS's announcing span of /10	104	% AS's announcing span of /10	0.0013
AS's announcing span of /11	173	% AS's announcing span of /11	0.0022
AS's announcing span of /12	240	% AS's announcing span of /12	0.0031
AS's announcing span of /13	393	% AS's announcing span of /13	0.0050
AS's announcing span of /14	853	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1617	% AS's announcing span of /15	0.0208
AS's announcing span of /16	1729	% AS's announcing span of /16	0.0222
AS's announcing span of /17	2440	% AS's announcing span of /17	0.0313
AS's announcing span of /18	3719	% AS's announcing span of /18	0.0477
AS's announcing span of /19	5140	% AS's announcing span of /19	0.0660
AS's announcing span of /20	7535	% AS's announcing span of /20	0.0967
AS's announcing span of /21	10446	% AS's announcing span of /21	0.1341
AS's announcing span of /22	13153	% AS's announcing span of /22	0.1689
AS's announcing span of /23	10363	% AS's announcing span of /23	0.1330
AS's announcing span of /24	19824	% AS's announcing span of /24	0.2545
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	0	% 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.

AS Connectivity Report	Data
AS Adjacency Count	128681
Average AS Connectivity Degree (257362/78547)	3.2765
Average AS Connectivity IN:OUT Degree	0.1532
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	600779	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	588162	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	403843	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	403878	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 Tue Apr 28 19:01:10 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