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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Sep 15 18:01:10 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)	1027350	Change in FIB Size	-6	Change (%)	-0.001
All BGP entries (RIB)	3043337
RIB/FIB ratio (3043337/1027350)	2.9623
Valid entries	3043337
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)	3108899968
Total address space advertised (prefix length)	0.46624295
Percentage of IPv4 space advertised (3108899968/4294967295)	72.384718
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3026
Average address span (as prefix size)	20.4368
Average prefix length	22.9267

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	533118	Specifics as % of FIB entries (533118/1027350)	51.8925
Specifics as % of address span (1104209866/3108899968)	35.5177
Specifics where AS prepended Path matches aggregate	237865	AS-P_Path-Match % (237865/533118)	44.62
AS Path matches aggregate	257374	AS-Path-Match % (257374/533118)	48.2771
AS Origin matches aggregate	410965	AS-Origin-Match % (410965/533118)	77.0871
Root Prefixes	494232
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	436334
Root Prefixes with depth 1	46756
Root Prefixes with depth 2	9049
Root Prefixes with depth 3	1599
Root Prefixes with depth 4	388
Root Prefixes with depth 5	76
Root Prefixes with depth 6	21
Root Prefixes with depth 7	8
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	77560	ASes visible in only one AS path	46603
Origin only ASes	66248	Origin ASs announced via a single AS path	46069
Transit only ASes	570	Originating AS ATOM count	76990
Mixed ASes	10742	Originating AS ATOM compression	0.0749
Multi-Origin Prefixes	2237
ASes originating a single prefix	26914
Average FIB entries per Origin AS	13.3439	Maximum entries for an origin AS (AS7713)	3699
Average address range span for an origin AS	40380.5685	Maximum address range for an origin AS (AS749)	227886080

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	261242	Unique AS prepended Paths	278101
AS Paths used in FIB	129560	AS Paths using prepending	61970
AS paths associated with a single FIB entry	61681	AS Paths using private ASs	27
Average AS path length	5.1887	Number of Prefixes with Selected AS Prepending Paths	133428
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	133428
Average address weighted AS path length	6.4856	Maximum prepended AS Path length	91
Average entries per AS Path	3.9326	Average entries per FIB AS Path	7.9295
AS Paths per origin AS	3.3932	FIB AS Paths per origin AS	1.6828
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	41	% Prefix /10	0.00
Prefix count /11	92	% Prefix /11	0.01
Prefix count /12	298	% Prefix /12	0.03
Prefix count /13	580	% Prefix /13	0.06
Prefix count /14	1210	% Prefix /14	0.12
Prefix count /15	2157	% Prefix /15	0.21
Prefix count /16	13831	% Prefix /16	1.35
Prefix count /17	8352	% Prefix /17	0.81
Prefix count /18	13725	% Prefix /18	1.34
Prefix count /19	25102	% Prefix /19	2.44
Prefix count /20	46206	% Prefix /20	4.50
Prefix count /21	53531	% Prefix /21	5.21
Prefix count /22	114529	% Prefix /22	11.15
Prefix count /23	108493	% Prefix /23	10.56
Prefix count /24	638355	% Prefix /24	62.14
Prefix count /25	790	% Prefix /25	0.08
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	26	% 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	85	% Prefix /11	0.02
Prefix count /12	263	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1030	% Prefix /14	0.21
Prefix count /15	1654	% Prefix /15	0.33
Prefix count /16	11035	% Prefix /16	2.23
Prefix count /17	4451	% Prefix /17	0.90
Prefix count /18	6954	% Prefix /18	1.41
Prefix count /19	14848	% Prefix /19	3.00
Prefix count /20	20462	% Prefix /20	4.14
Prefix count /21	22804	% Prefix /21	4.61
Prefix count /22	59924	% Prefix /22	12.12
Prefix count /23	43880	% Prefix /23	8.88
Prefix count /24	306279	% Prefix /24	61.97
Prefix count /25	11	% 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	237086231	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1321139333	% Addresses at AS distance 3	31.4
Addresses at AS distance 4	1959071918	% Addresses at AS distance 4	46.5
Addresses at AS distance 5	531096448	% Addresses at AS distance 5	12.6
Addresses at AS distance 6	141782144	% Addresses at AS distance 6	3.4
Addresses at AS distance 7	14310144	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7942912	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	661760	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	11008	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1280	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	256	% 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	0	% Addresses at AS distance 14	0.0
Addresses at AS distance 15	1280	% 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	237091351	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1558230684	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3517302602	% Addresses reachable within 4 AS hops	83
Addresses reachable within 5 AS hops	4048399050	% Addresses reachable within 5 AS hops	96
Addresses reachable within 6 AS hops	4190181194	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4204491338	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4212434250	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4213096010	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4213107018	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4213108298	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4213108554	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4213108554	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4213108554	% Addresses reachable within 14 AS hops	99
Addresses reachable within 15 AS hops	4213109834	% 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	374	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9579	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	32561	% ASes reachable at 4 AS hops	41
ASes reachable at 5 AS hops	27383	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6123	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1172	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	287	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	55	% 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	1	% 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	4	% 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	377	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9956	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	42517	Cumulative % ASes by AS hops 4	54.8
ASes reachable by 5 AS hops	69900	Cumulative % ASes by AS hops 5	90.1
ASes reachable by 6 AS hops	76023	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77195	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77482	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77537	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77543	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77544	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77548	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77552	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77556	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	77560	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	25461	New Entries	166	Removed Entries	173	Updated Entries	25122
		Report		Report		Report
Address Span	26147332	Address Span	95744	Address Span	161536	Address Span	25890052
Average address span per update	1026	Avg Span	576	Avg Span	933	Avg Span	1030
Average prefix size updated	23.33	Average prefix size	23.45	Average prefix size	23.20	Average prefix size	23.33
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /13 total	2	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	2
Prefix /14 total	3	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	3
Prefix /15 total	6	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	6
Prefix /16 total	51	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	51
Prefix /17 total	62	Prefix /17 announcements	0	Prefix /17 withdrawals	1	Prefix /17 path updates	61
Prefix /18 total	86	Prefix /18 announcements	0	Prefix /18 withdrawals	1	Prefix /18 path updates	85
Prefix /19 total	216	Prefix /19 announcements	0	Prefix /19 withdrawals	1	Prefix /19 path updates	215
Prefix /20 total	1125	Prefix /20 announcements	3	Prefix /20 withdrawals	6	Prefix /20 path updates	1116
Prefix /21 total	818	Prefix /21 announcements	19	Prefix /21 withdrawals	5	Prefix /21 path updates	794
Prefix /22 total	3027	Prefix /22 announcements	7	Prefix /22 withdrawals	31	Prefix /22 path updates	2989
Prefix /23 total	1911	Prefix /23 announcements	9	Prefix /23 withdrawals	19	Prefix /23 path updates	1883
Prefix /24 total	17882	Prefix /24 announcements	128	Prefix /24 withdrawals	109	Prefix /24 path updates	17645
Prefix /25 total	268	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	268
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	4	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	4
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	0.14	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.14
Prefix /14 total	0.10	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.10
Prefix /15 total	0.11	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.11
Prefix /16 total	0.15	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.15
Prefix /17 total	0.30	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.71	Prefix /17 path updates	0.30
Prefix /18 total	0.25	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.43	Prefix /18 path updates	0.25
Prefix /19 total	0.35	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.24	Prefix /19 path updates	0.35
Prefix /20 total	0.98	Prefix /20 announcements	0.40	Prefix /20 withdrawals	0.77	Prefix /20 path updates	0.99
Prefix /21 total	0.62	Prefix /21 announcements	2.20	Prefix /21 withdrawals	0.55	Prefix /21 path updates	0.61
Prefix /22 total	1.07	Prefix /22 announcements	0.38	Prefix /22 withdrawals	1.61	Prefix /22 path updates	1.07
Prefix /23 total	0.71	Prefix /23 announcements	0.51	Prefix /23 withdrawals	1.04	Prefix /23 path updates	0.71
Prefix /24 total	1.13	Prefix /24 announcements	1.24	Prefix /24 withdrawals	1.01	Prefix /24 path updates	1.13
Prefix /25 total	13.69	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	13.87
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	6.21	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	6.29

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	25453.930	New Entries	165.954	Removed Entries	172.952	Updated Entries	25115.023
Address Span	26140070.000	Address Span	95717.414	Address Span	161491.141	Address Span	25882862.000
Average address span per update	1025.715	Avg Span	575.840	Avg Span	932.741	Avg Span	1029.714
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	1.999	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	1.999
Prefix /14 update rate	2.999	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	2.999
Prefix /15 update rate	5.998	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	5.998
Prefix /16 update rate	50.986	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	50.986
Prefix /17 update rate	61.983	Prefix /17 announcements	0.000	Prefix /17 withdrawals	1.000	Prefix /17 path updates	60.983
Prefix /18 update rate	85.976	Prefix /18 announcements	0.000	Prefix /18 withdrawals	1.000	Prefix /18 path updates	84.976
Prefix /19 update rate	215.940	Prefix /19 announcements	0.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	214.940
Prefix /20 update rate	1124.688	Prefix /20 announcements	2.999	Prefix /20 withdrawals	5.998	Prefix /20 path updates	1115.690
Prefix /21 update rate	817.773	Prefix /21 announcements	18.995	Prefix /21 withdrawals	4.999	Prefix /21 path updates	793.779
Prefix /22 update rate	3026.159	Prefix /22 announcements	6.998	Prefix /22 withdrawals	30.991	Prefix /22 path updates	2988.170
Prefix /23 update rate	1910.469	Prefix /23 announcements	8.998	Prefix /23 withdrawals	18.995	Prefix /23 path updates	1882.477
Prefix /24 update rate	17877.033	Prefix /24 announcements	127.964	Prefix /24 withdrawals	108.970	Prefix /24 path updates	17640.100
Prefix /25 update rate	267.926	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	267.926
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	3.999	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	3.999

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

3857

289

291

3177

Report

/13 Tot

/13 Org

/13 Nxt

/13 Trn

/13 Fst

/13 Prp

/14 Tot

/14 Org

/14 Nxt

/14 Trn

/14 Fst

/14 Prp

/15 Tot

/15 Org

/15 Nxt

/15 Trn

/15 Fst

/15 Prp

/16 Tot

/16 Org

/16 Nxt

/16 Trn

/16 Fst

/16 Prp

/17 Tot

/17 Org

/17 Nxt

/17 Trn

/17 Fst

/17 Prp

/18 Tot

/18 Org

/18 Nxt

/18 Trn

/18 Fst

/18 Prp

/19 Tot

215

/19 Org

/19 Nxt

/19 Trn

184

/19 Fst

/19 Prp

/20 Tot

1116

/20 Org

/20 Nxt

/20 Trn

1052

/20 Fst

/20 Prp

/21 Tot

794

/21 Org

/21 Nxt

/21 Trn

703

/21 Fst

/21 Prp

/22 Tot

2989

/22 Org

/22 Nxt

223

/22 Trn

2720

/22 Fst

/22 Prp

/23 Tot

1883

/23 Org

/23 Nxt

161

/23 Trn

1673

/23 Fst

/23 Prp

/24 Tot

17645

/24 Org

/24 Nxt

4729

/24 Trn

12441

/24 Fst

424

/24 Prp

/25 Tot

268

/25 Org

/25 Nxt

/25 Trn

/25 Fst

191

/25 Prp

/26 Tot

/26 Org

/26 Nxt

/26 Trn

/26 Fst

/26 Prp

/27 Tot

/27 Org

/27 Nxt

/27 Trn

/27 Fst

/27 Prp

/28 Tot

/28 Org

/28 Nxt

/28 Trn

/28 Fst

/28 Prp

/29 Tot

/29 Org

/29 Nxt

/29 Trn

/29 Fst

/29 Prp

/30 Tot

/30 Org

/30 Nxt

/30 Trn

/30 Fst

/30 Prp

/31 Tot

/31 Org

/31 Nxt

/31 Trn

/31 Fst

/31 Prp

/32 Tot

/32 Org

/32 Nxt

/32 Trn

/32 Fst

/32 Prp

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	44	% AS's announcing span of /8	0.0006
AS's announcing span of /9	72	% 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	171	% AS's announcing span of /11	0.0022
AS's announcing span of /12	243	% AS's announcing span of /12	0.0032
AS's announcing span of /13	405	% AS's announcing span of /13	0.0053
AS's announcing span of /14	848	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1629	% AS's announcing span of /15	0.0212
AS's announcing span of /16	1783	% AS's announcing span of /16	0.0232
AS's announcing span of /17	2442	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3768	% AS's announcing span of /18	0.0490
AS's announcing span of /19	5127	% AS's announcing span of /19	0.0666
AS's announcing span of /20	7627	% AS's announcing span of /20	0.0991
AS's announcing span of /21	10405	% AS's announcing span of /21	0.1352
AS's announcing span of /22	12866	% AS's announcing span of /22	0.1672
AS's announcing span of /23	10061	% AS's announcing span of /23	0.1308
AS's announcing span of /24	19290	% AS's announcing span of /24	0.2507
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.

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AS Connectivity Report	Data
AS Adjacency Count	128741
Average AS Connectivity Degree (257482/77560)	3.3198
Average AS Connectivity IN:OUT Degree	0.1557
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	572925	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	558687	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	392333	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	392356	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 Mon Sep 15 18:01:10 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