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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Wed Nov 5 02:01:09 2025 (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)	1036829	Change in FIB Size	132	Change (%)	0.013
All BGP entries (RIB)	3072564
RIB/FIB ratio (3072564/1036829)	2.9634
Valid entries	3072564
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)	3101694848
Total address space advertised (prefix length)	0.46959039
Percentage of IPv4 space advertised (3101694848/4294967295)	72.216961
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2992
Average address span (as prefix size)	20.4536
Average prefix length	22.9335

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	536619	Specifics as % of FIB entries (536619/1036829)	51.7558
Specifics as % of address span (1106809273/3101694848)	35.6840
Specifics where AS prepended Path matches aggregate	225786	AS-P_Path-Match % (225786/536619)	42.08
AS Path matches aggregate	243989	AS-Path-Match % (243989/536619)	45.4678
AS Origin matches aggregate	412804	AS-Origin-Match % (412804/536619)	76.9268
Root Prefixes	500210
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	442298
Root Prefixes with depth 1	46801
Root Prefixes with depth 2	9034
Root Prefixes with depth 3	1582
Root Prefixes with depth 4	387
Root Prefixes with depth 5	76
Root Prefixes with depth 6	24
Root Prefixes with depth 7	7
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	77725	ASes visible in only one AS path	45864
Origin only ASes	66341	Origin ASs announced via a single AS path	45335
Transit only ASes	583	Originating AS ATOM count	77142
Mixed ASes	10801	Originating AS ATOM compression	0.0744
Multi-Origin Prefixes	2470
ASes originating a single prefix	26943
Average FIB entries per Origin AS	13.4405	Maximum entries for an origin AS (AS7713)	3721
Average address range span for an origin AS	40207.6022	Maximum address range for an origin AS (AS749)	227885312

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	263686	Unique AS prepended Paths	280445
AS Paths used in FIB	133985	AS Paths using prepending	62944
AS paths associated with a single FIB entry	64462	AS Paths using private ASs	29
Average AS path length	5.2010	Number of Prefixes with Selected AS Prepending Paths	135331
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	135331
Average address weighted AS path length	6.5334	Maximum prepended AS Path length	91
Average entries per AS Path	3.9321	Average entries per FIB AS Path	7.7384
AS Paths per origin AS	3.4182	FIB AS Paths per origin AS	1.7369
AS PATH ATOM compression	0.1292

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	41	% Prefix /10	0.00
Prefix count /11	94	% Prefix /11	0.01
Prefix count /12	297	% Prefix /12	0.03
Prefix count /13	581	% Prefix /13	0.06
Prefix count /14	1200	% Prefix /14	0.12
Prefix count /15	2104	% Prefix /15	0.20
Prefix count /16	13752	% Prefix /16	1.33
Prefix count /17	8364	% Prefix /17	0.81
Prefix count /18	13790	% Prefix /18	1.33
Prefix count /19	25253	% Prefix /19	2.44
Prefix count /20	46353	% Prefix /20	4.47
Prefix count /21	53636	% Prefix /21	5.17
Prefix count /22	114867	% Prefix /22	11.08
Prefix count /23	109834	% Prefix /23	10.59
Prefix count /24	645916	% Prefix /24	62.30
Prefix count /25	706	% Prefix /25	0.07
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	1	% Prefix /27	0.00
Prefix count /28	1	% 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	9	% 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	41	% Prefix /10	0.01
Prefix count /11	87	% Prefix /11	0.02
Prefix count /12	259	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1024	% Prefix /14	0.20
Prefix count /15	1627	% Prefix /15	0.33
Prefix count /16	10952	% Prefix /16	2.19
Prefix count /17	4461	% Prefix /17	0.89
Prefix count /18	6973	% Prefix /18	1.39
Prefix count /19	14916	% Prefix /19	2.98
Prefix count /20	20521	% Prefix /20	4.10
Prefix count /21	22851	% Prefix /21	4.57
Prefix count /22	60120	% Prefix /22	12.02
Prefix count /23	44477	% Prefix /23	8.89
Prefix count /24	311381	% Prefix /24	62.25
Prefix count /25	9	% 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	235701527	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1274847746	% Addresses at AS distance 3	30.3
Addresses at AS distance 4	1943633440	% Addresses at AS distance 4	46.2
Addresses at AS distance 5	570309120	% Addresses at AS distance 5	13.6
Addresses at AS distance 6	162959360	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	12417280	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8285184	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	320000	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	23552	% 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	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

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	235706647	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1510554393	% Addresses reachable within 3 AS hops	35
Addresses reachable within 4 AS hops	3454187833	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4024496953	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4187456313	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4199873593	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4208158777	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4208478777	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4208502329	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4208502841	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4208502841	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4208502841	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4208504121	% Addresses reachable within 14 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	372	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9134	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	32827	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27589	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6168	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1253	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	299	% 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	6	% 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

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	375	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9509	Cumulative % ASes by AS hops 3	12.2
ASes reachable by 4 AS hops	42336	Cumulative % ASes by AS hops 4	54.5
ASes reachable by 5 AS hops	69925	Cumulative % ASes by AS hops 5	90.0
ASes reachable by 6 AS hops	76093	Cumulative % ASes by AS hops 6	97.9
ASes reachable by 7 AS hops	77346	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77645	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77703	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77709	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77713	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77717	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77721	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77725	Cumulative % ASes by AS hops 14	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	2134	New Entries	341	Removed Entries	200	Updated Entries	1593
		Report		Report		Report
Address Span	2551041	Address Span	239105	Address Span	1191680	Address Span	1120256
Average address span per update	1195	Avg Span	701	Avg Span	5958	Avg Span	703
Average prefix size updated	23.63	Average prefix size	23.44	Average prefix size	22.89	Average prefix size	23.76
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /12 total	1	Prefix /12 announcements	0	Prefix /12 withdrawals	1	Prefix /12 path updates	0
Prefix /13 total	0	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	0
Prefix /14 total	0	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	0
Prefix /15 total	1	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	1
Prefix /16 total	2	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	2
Prefix /17 total	2	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	2
Prefix /18 total	8	Prefix /18 announcements	1	Prefix /18 withdrawals	0	Prefix /18 path updates	7
Prefix /19 total	14	Prefix /19 announcements	6	Prefix /19 withdrawals	0	Prefix /19 path updates	8
Prefix /20 total	31	Prefix /20 announcements	11	Prefix /20 withdrawals	4	Prefix /20 path updates	16
Prefix /21 total	55	Prefix /21 announcements	12	Prefix /21 withdrawals	5	Prefix /21 path updates	38
Prefix /22 total	215	Prefix /22 announcements	14	Prefix /22 withdrawals	85	Prefix /22 path updates	116
Prefix /23 total	149	Prefix /23 announcements	54	Prefix /23 withdrawals	10	Prefix /23 path updates	85
Prefix /24 total	1415	Prefix /24 announcements	242	Prefix /24 withdrawals	95	Prefix /24 path updates	1078
Prefix /25 total	240	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	240
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	1	Prefix /32 announcements	1	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	1.64	Prefix /12 announcements	0.00	Prefix /12 withdrawals	17.46	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	0.23	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.31
Prefix /16 total	0.07	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.09
Prefix /17 total	0.12	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.16
Prefix /18 total	0.28	Prefix /18 announcements	0.22	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.33
Prefix /19 total	0.27	Prefix /19 announcements	0.72	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.21
Prefix /20 total	0.32	Prefix /20 announcements	0.72	Prefix /20 withdrawals	0.45	Prefix /20 path updates	0.22
Prefix /21 total	0.50	Prefix /21 announcements	0.68	Prefix /21 withdrawals	0.48	Prefix /21 path updates	0.46
Prefix /22 total	0.91	Prefix /22 announcements	0.37	Prefix /22 withdrawals	3.84	Prefix /22 path updates	0.66
Prefix /23 total	0.66	Prefix /23 announcements	1.49	Prefix /23 withdrawals	0.47	Prefix /23 path updates	0.50
Prefix /24 total	1.06	Prefix /24 announcements	1.14	Prefix /24 withdrawals	0.76	Prefix /24 path updates	1.09
Prefix /25 total	165.17	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	221.26
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	0.00	Prefix /27 withdrawals	0.00	Prefix /27 path updates	0.00
Prefix /28 total	0.00	Prefix /28 announcements	0.00	Prefix /28 withdrawals	0.00	Prefix /28 path updates	0.00
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	53.98	Prefix /32 announcements	337.84	Prefix /32 withdrawals	0.00	Prefix /32 path updates	0.00

FIB Update Rate Reports Updates per hour (Measurement Period 0 hrs 59 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	2134.593	New Entries	341.095	Removed Entries	200.056	Updated Entries	1593.443
Address Span	2551749.750	Address Span	239171.438	Address Span	1192011.125	Address Span	1120567.250
Average address span per update	1195.332	Avg Span	701.195	Avg Span	5959.655	Avg Span	703.195
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	1.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	1.000	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	1.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	1.000
Prefix /16 update rate	2.001	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	2.001
Prefix /17 update rate	2.001	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	2.001
Prefix /18 update rate	8.002	Prefix /18 announcements	1.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	7.002
Prefix /19 update rate	14.004	Prefix /19 announcements	6.002	Prefix /19 withdrawals	0.000	Prefix /19 path updates	8.002
Prefix /20 update rate	31.009	Prefix /20 announcements	11.003	Prefix /20 withdrawals	4.001	Prefix /20 path updates	16.004
Prefix /21 update rate	55.015	Prefix /21 announcements	12.003	Prefix /21 withdrawals	5.001	Prefix /21 path updates	38.011
Prefix /22 update rate	215.060	Prefix /22 announcements	14.004	Prefix /22 withdrawals	85.024	Prefix /22 path updates	116.032
Prefix /23 update rate	149.041	Prefix /23 announcements	54.015	Prefix /23 withdrawals	10.003	Prefix /23 path updates	85.024
Prefix /24 update rate	1415.393	Prefix /24 announcements	242.067	Prefix /24 withdrawals	95.026	Prefix /24 path updates	1078.300
Prefix /25 update rate	240.067	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	240.067
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	1.000	Prefix /32 announcements	1.000	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	585	Origin Paths	57	NextHop Paths	175	Transit Paths	189	Paths	154	Paths	10
Report
/15 Tot	1	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	1	/15 Prp	0
/16 Tot	2	/16 Org	0	/16 Nxt	1	/16 Trn	0	/16 Fst	1	/16 Prp	0
/17 Tot	2	/17 Org	0	/17 Nxt	1	/17 Trn	0	/17 Fst	1	/17 Prp	0
/18 Tot	7	/18 Org	0	/18 Nxt	0	/18 Trn	3	/18 Fst	4	/18 Prp	0
/19 Tot	8	/19 Org	0	/19 Nxt	1	/19 Trn	5	/19 Fst	2	/19 Prp	0
/20 Tot	16	/20 Org	0	/20 Nxt	9	/20 Trn	4	/20 Fst	3	/20 Prp	0
/21 Tot	38	/21 Org	0	/21 Nxt	17	/21 Trn	8	/21 Fst	13	/21 Prp	0
/22 Tot	116	/22 Org	0	/22 Nxt	49	/22 Trn	40	/22 Fst	27	/22 Prp	0
/23 Tot	85	/23 Org	0	/23 Nxt	32	/23 Trn	21	/23 Fst	31	/23 Prp	1
/24 Tot	1078	/24 Org	1	/24 Nxt	350	/24 Trn	471	/24 Fst	245	/24 Prp	11
/25 Tot	240	/25 Org	60	/25 Nxt	19	/25 Trn	0	/25 Fst	161	/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	43	% AS's announcing span of /8	0.0006
AS's announcing span of /9	73	% AS's announcing span of /9	0.0009
AS's announcing span of /10	99	% 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	245	% AS's announcing span of /12	0.0032
AS's announcing span of /13	409	% AS's announcing span of /13	0.0053
AS's announcing span of /14	844	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1624	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1774	% AS's announcing span of /16	0.0230
AS's announcing span of /17	2464	% AS's announcing span of /17	0.0320
AS's announcing span of /18	3752	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5161	% AS's announcing span of /19	0.0669
AS's announcing span of /20	7627	% AS's announcing span of /20	0.0989
AS's announcing span of /21	10446	% AS's announcing span of /21	0.1355
AS's announcing span of /22	12869	% AS's announcing span of /22	0.1669
AS's announcing span of /23	10045	% AS's announcing span of /23	0.1303
AS's announcing span of /24	19388	% AS's announcing span of /24	0.2515
AS's announcing span of /25	16	% 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.

h h h

AS Connectivity Report	Data
AS Adjacency Count	129090
Average AS Connectivity Degree (258180/77725)	3.3217
Average AS Connectivity IN:OUT Degree	0.1571
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	593504	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	580430	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	395887	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	395920	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 Wed Nov 5 02:01:09 2025 (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