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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon May 18 01:01:11 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)	1054337	Change in FIB Size	-99	Change (%)	-0.009
All BGP entries (RIB)	3144982
RIB/FIB ratio (3144982/1054337)	2.9829
Valid entries	3144982
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)	3104603904
Total address space advertised (prefix length)	0.46823793
Percentage of IPv4 space advertised (3104603904/4294967295)	72.284693
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2945
Average address span (as prefix size)	20.4764
Average prefix length	22.9522

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	537039	Specifics as % of FIB entries (537039/1054337)	50.9362
Specifics as % of address span (1095792902/3104603904)	35.2957
Specifics where AS prepended Path matches aggregate	232141	AS-P_Path-Match % (232141/537039)	43.23
AS Path matches aggregate	251454	AS-Path-Match % (251454/537039)	46.8223
AS Origin matches aggregate	409349	AS-Origin-Match % (409349/537039)	76.2233
Root Prefixes	517298
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	460225
Root Prefixes with depth 1	46687
Root Prefixes with depth 2	8523
Root Prefixes with depth 3	1426
Root Prefixes with depth 4	333
Root Prefixes with depth 5	72
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	78622	ASes visible in only one AS path	46797
Origin only ASes	67177	Origin ASs announced via a single AS path	46216
Transit only ASes	617	Originating AS ATOM count	78005
Mixed ASes	10828	Originating AS ATOM compression	0.0740
Multi-Origin Prefixes	1593
ASes originating a single prefix	27631
Average FIB entries per Origin AS	13.5163	Maximum entries for an origin AS (AS7713)	3724
Average address range span for an origin AS	39800.0629	Maximum address range for an origin AS (AS749)	227730688

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	276473	Unique AS prepended Paths	294635
AS Paths used in FIB	133957	AS Paths using prepending	66695
AS paths associated with a single FIB entry	64897	AS Paths using private ASs	16
Average AS path length	5.3103	Number of Prefixes with Selected AS Prepending Paths	143944
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	143944
Average address weighted AS path length	6.5557	Maximum prepended AS Path length	70
Average entries per AS Path	3.8135	Average entries per FIB AS Path	7.8707
AS Paths per origin AS	3.5443	FIB AS Paths per origin AS	1.7173
AS PATH ATOM compression	0.1271

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	297	% Prefix /12	0.03
Prefix count /13	583	% Prefix /13	0.06
Prefix count /14	1191	% Prefix /14	0.11
Prefix count /15	2114	% Prefix /15	0.20
Prefix count /16	13641	% Prefix /16	1.29
Prefix count /17	8389	% Prefix /17	0.80
Prefix count /18	13477	% Prefix /18	1.28
Prefix count /19	25793	% Prefix /19	2.45
Prefix count /20	47066	% Prefix /20	4.46
Prefix count /21	53081	% Prefix /21	5.03
Prefix count /22	113999	% Prefix /22	10.81
Prefix count /23	109125	% Prefix /23	10.35
Prefix count /24	664721	% Prefix /24	63.05
Prefix count /25	690	% 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	6	% 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	487	% Prefix /13	0.09
Prefix count /14	1014	% Prefix /14	0.20
Prefix count /15	1621	% Prefix /15	0.31
Prefix count /16	10830	% Prefix /16	2.09
Prefix count /17	4514	% Prefix /17	0.87
Prefix count /18	7166	% Prefix /18	1.39
Prefix count /19	14916	% Prefix /19	2.88
Prefix count /20	20898	% Prefix /20	4.04
Prefix count /21	22903	% Prefix /21	4.43
Prefix count /22	60722	% Prefix /22	11.74
Prefix count /23	46208	% Prefix /23	8.93
Prefix count /24	325596	% Prefix /24	62.94
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	218705158	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1222974336	% Addresses at AS distance 3	29.1
Addresses at AS distance 4	1966630784	% Addresses at AS distance 4	46.8
Addresses at AS distance 5	603204224	% Addresses at AS distance 5	14.4
Addresses at AS distance 6	166860416	% Addresses at AS distance 6	4.0
Addresses at AS distance 7	13980672	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7704576	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	307456	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	20224	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	2048	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	512	% 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	218710278	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1441684614	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3408315398	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4011519622	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4178380038	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4192360710	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4200065286	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4200372742	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4200392966	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4200395014	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4200395526	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4200395526	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4200396806	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4200396806	% 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	304	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6538	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	30621	% ASes reachable at 4 AS hops	38
ASes reachable at 5 AS hops	31575	% ASes reachable at 5 AS hops	40
ASes reachable at 6 AS hops	7795	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1404	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	302	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	53	% 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	5	% 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	307	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6845	Cumulative % ASes by AS hops 3	8.7
ASes reachable by 4 AS hops	37466	Cumulative % ASes by AS hops 4	47.7
ASes reachable by 5 AS hops	69041	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	76836	Cumulative % ASes by AS hops 6	97.7
ASes reachable by 7 AS hops	78240	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78542	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78595	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78605	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78610	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78614	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78618	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78622	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78622	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	2249	New Entries	216	Removed Entries	322	Updated Entries	1711
		Report		Report		Report
Address Span	8264704	Address Span	74496	Address Span	206848	Address Span	7983360
Average address span per update	3674	Avg Span	344	Avg Span	642	Avg Span	4665
Average prefix size updated	22.58	Average prefix size	23.76	Average prefix size	23.58	Average prefix size	22.24
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	0	Prefix /12 path updates	1
Prefix /13 total	1	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	1
Prefix /14 total	2	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	2
Prefix /15 total	2	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	2
Prefix /16 total	37	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	37
Prefix /17 total	1	Prefix /17 announcements	0	Prefix /17 withdrawals	1	Prefix /17 path updates	0
Prefix /18 total	7	Prefix /18 announcements	0	Prefix /18 withdrawals	2	Prefix /18 path updates	5
Prefix /19 total	70	Prefix /19 announcements	0	Prefix /19 withdrawals	3	Prefix /19 path updates	67
Prefix /20 total	533	Prefix /20 announcements	0	Prefix /20 withdrawals	3	Prefix /20 path updates	530
Prefix /21 total	31	Prefix /21 announcements	3	Prefix /21 withdrawals	0	Prefix /21 path updates	28
Prefix /22 total	109	Prefix /22 announcements	11	Prefix /22 withdrawals	5	Prefix /22 path updates	93
Prefix /23 total	229	Prefix /23 announcements	21	Prefix /23 withdrawals	80	Prefix /23 path updates	128
Prefix /24 total	994	Prefix /24 announcements	181	Prefix /24 withdrawals	228	Prefix /24 path updates	585
Prefix /25 total	232	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	232
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	1.58	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	2.07
Prefix /13 total	0.80	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	1.06
Prefix /14 total	0.79	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	1.03
Prefix /15 total	0.44	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.58
Prefix /16 total	1.27	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	1.67
Prefix /17 total	0.06	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.39	Prefix /17 path updates	0.00
Prefix /18 total	0.24	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.49	Prefix /18 path updates	0.23
Prefix /19 total	1.27	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.38	Prefix /19 path updates	1.60
Prefix /20 total	5.31	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.21	Prefix /20 path updates	6.94
Prefix /21 total	0.27	Prefix /21 announcements	0.28	Prefix /21 withdrawals	0.00	Prefix /21 path updates	0.33
Prefix /22 total	0.45	Prefix /22 announcements	0.47	Prefix /22 withdrawals	0.14	Prefix /22 path updates	0.50
Prefix /23 total	0.98	Prefix /23 announcements	0.94	Prefix /23 withdrawals	2.40	Prefix /23 path updates	0.72
Prefix /24 total	0.70	Prefix /24 announcements	1.33	Prefix /24 withdrawals	1.12	Prefix /24 path updates	0.54
Prefix /25 total	157.63	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	207.19
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 0 hrs 59 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	2250.250	New Entries	216.120	Removed Entries	322.179	Updated Entries	1711.951
Address Span	8269298.000	Address Span	74537.406	Address Span	206962.984	Address Span	7987797.500
Average address span per update	3676.042	Avg Span	344.191	Avg Span	642.357	Avg Span	4667.593
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	1.001	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	1.001
Prefix /13 update rate	1.001	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	1.001
Prefix /14 update rate	2.001	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	2.001
Prefix /15 update rate	2.001	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	2.001
Prefix /16 update rate	37.021	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	37.021
Prefix /17 update rate	1.001	Prefix /17 announcements	0.000	Prefix /17 withdrawals	1.001	Prefix /17 path updates	0.000
Prefix /18 update rate	7.004	Prefix /18 announcements	0.000	Prefix /18 withdrawals	2.001	Prefix /18 path updates	5.003
Prefix /19 update rate	70.039	Prefix /19 announcements	0.000	Prefix /19 withdrawals	3.002	Prefix /19 path updates	67.037
Prefix /20 update rate	533.296	Prefix /20 announcements	0.000	Prefix /20 withdrawals	3.002	Prefix /20 path updates	530.295
Prefix /21 update rate	31.017	Prefix /21 announcements	3.002	Prefix /21 withdrawals	0.000	Prefix /21 path updates	28.016
Prefix /22 update rate	109.061	Prefix /22 announcements	11.006	Prefix /22 withdrawals	5.003	Prefix /22 path updates	93.052
Prefix /23 update rate	229.127	Prefix /23 announcements	21.012	Prefix /23 withdrawals	80.044	Prefix /23 path updates	128.071
Prefix /24 update rate	994.553	Prefix /24 announcements	181.101	Prefix /24 withdrawals	228.127	Prefix /24 path updates	585.325
Prefix /25 update rate	232.129	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	232.129
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	384	Origin Paths	57	NextHop Paths	93	Transit Paths	148	Paths	70	Paths	16
Report
/12 Tot	1	/12 Org	0	/12 Nxt	0	/12 Trn	0	/12 Fst	0	/12 Prp	1
/13 Tot	1	/13 Org	0	/13 Nxt	0	/13 Trn	0	/13 Fst	0	/13 Prp	1
/14 Tot	2	/14 Org	0	/14 Nxt	0	/14 Trn	0	/14 Fst	0	/14 Prp	2
/15 Tot	2	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	0	/15 Prp	2
/16 Tot	37	/16 Org	0	/16 Nxt	1	/16 Trn	0	/16 Fst	9	/16 Prp	27
/17 Tot	0	/17 Org	0	/17 Nxt	0	/17 Trn	0	/17 Fst	0	/17 Prp	0
/18 Tot	5	/18 Org	0	/18 Nxt	4	/18 Trn	0	/18 Fst	1	/18 Prp	0
/19 Tot	67	/19 Org	0	/19 Nxt	1	/19 Trn	1	/19 Fst	5	/19 Prp	60
/20 Tot	530	/20 Org	0	/20 Nxt	14	/20 Trn	7	/20 Fst	100	/20 Prp	409
/21 Tot	28	/21 Org	0	/21 Nxt	23	/21 Trn	3	/21 Fst	1	/21 Prp	1
/22 Tot	93	/22 Org	1	/22 Nxt	56	/22 Trn	10	/22 Fst	20	/22 Prp	6
/23 Tot	128	/23 Org	0	/23 Nxt	91	/23 Trn	10	/23 Fst	24	/23 Prp	3
/24 Tot	585	/24 Org	1	/24 Nxt	258	/24 Trn	119	/24 Fst	196	/24 Prp	11
/25 Tot	232	/25 Org	58	/25 Nxt	9	/25 Trn	0	/25 Fst	165	/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	104	% 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	243	% AS's announcing span of /12	0.0031
AS's announcing span of /13	392	% AS's announcing span of /13	0.0050
AS's announcing span of /14	853	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1622	% AS's announcing span of /15	0.0208
AS's announcing span of /16	1727	% AS's announcing span of /16	0.0222
AS's announcing span of /17	2431	% AS's announcing span of /17	0.0312
AS's announcing span of /18	3752	% AS's announcing span of /18	0.0481
AS's announcing span of /19	5114	% AS's announcing span of /19	0.0656
AS's announcing span of /20	7558	% AS's announcing span of /20	0.0970
AS's announcing span of /21	10401	% AS's announcing span of /21	0.1334
AS's announcing span of /22	13151	% AS's announcing span of /22	0.1687
AS's announcing span of /23	10425	% AS's announcing span of /23	0.1337
AS's announcing span of /24	19837	% 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	128733
Average AS Connectivity Degree (257466/78622)	3.2747
Average AS Connectivity IN:OUT Degree	0.1524
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	602735	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	589269	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	405378	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	405392	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 May 18 01:01:11 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