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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Sun Dec 14 14:01:10 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)	1046086	Change in FIB Size	50	Change (%)	0.005
All BGP entries (RIB)	3100394
RIB/FIB ratio (3100394/1046086)	2.9638
Valid entries	3100394
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)	3106104960
Total address space advertised (prefix length)	0.46754056
Percentage of IPv4 space advertised (3106104960/4294967295)	72.319642
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2969
Average address span (as prefix size)	20.4642
Average prefix length	22.9393

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	541509	Specifics as % of FIB entries (541509/1046086)	51.7652
Specifics as % of address span (1110959680/3106104960)	35.7670
Specifics where AS prepended Path matches aggregate	225834	AS-P_Path-Match % (225834/541509)	41.70
AS Path matches aggregate	243537	AS-Path-Match % (243537/541509)	44.9738
AS Origin matches aggregate	416964	AS-Origin-Match % (416964/541509)	77.0004
Root Prefixes	504577
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	446201
Root Prefixes with depth 1	47193
Root Prefixes with depth 2	9103
Root Prefixes with depth 3	1588
Root Prefixes with depth 4	384
Root Prefixes with depth 5	74
Root Prefixes with depth 6	26
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	77885	ASes visible in only one AS path	45573
Origin only ASes	66472	Origin ASs announced via a single AS path	45024
Transit only ASes	599	Originating AS ATOM count	77286
Mixed ASes	10814	Originating AS ATOM compression	0.0739
Multi-Origin Prefixes	1934
ASes originating a single prefix	26964
Average FIB entries per Origin AS	13.5353	Maximum entries for an origin AS (AS7713)	3731
Average address range span for an origin AS	40189.7492	Maximum address range for an origin AS (AS749)	227795712

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	265663	Unique AS prepended Paths	282469
AS Paths used in FIB	136273	AS Paths using prepending	63817
AS paths associated with a single FIB entry	65863	AS Paths using private ASs	25
Average AS path length	5.1968	Number of Prefixes with Selected AS Prepending Paths	137477
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	137477
Average address weighted AS path length	6.5284	Maximum prepended AS Path length	91
Average entries per AS Path	3.9376	Average entries per FIB AS Path	7.6764
AS Paths per origin AS	3.4374	FIB AS Paths per origin AS	1.7632
AS PATH ATOM compression	0.1303

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	93	% Prefix /11	0.01
Prefix count /12	299	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1204	% Prefix /14	0.12
Prefix count /15	2109	% Prefix /15	0.20
Prefix count /16	13754	% Prefix /16	1.31
Prefix count /17	8387	% Prefix /17	0.80
Prefix count /18	13805	% Prefix /18	1.32
Prefix count /19	25362	% Prefix /19	2.42
Prefix count /20	46754	% Prefix /20	4.47
Prefix count /21	53700	% Prefix /21	5.13
Prefix count /22	115119	% Prefix /22	11.00
Prefix count /23	110345	% Prefix /23	10.55
Prefix count /24	653794	% Prefix /24	62.50
Prefix count /25	697	% 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	1	% 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	41	% Prefix /10	0.01
Prefix count /11	88	% Prefix /11	0.02
Prefix count /12	261	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1026	% Prefix /14	0.20
Prefix count /15	1630	% Prefix /15	0.32
Prefix count /16	10918	% Prefix /16	2.16
Prefix count /17	4455	% Prefix /17	0.88
Prefix count /18	6995	% Prefix /18	1.39
Prefix count /19	14907	% Prefix /19	2.95
Prefix count /20	20521	% Prefix /20	4.07
Prefix count /21	22937	% Prefix /21	4.55
Prefix count /22	60214	% Prefix /22	11.93
Prefix count /23	44818	% Prefix /23	8.88
Prefix count /24	315246	% Prefix /24	62.48
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	235886366	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1287103490	% Addresses at AS distance 3	30.5
Addresses at AS distance 4	1956515616	% Addresses at AS distance 4	46.4
Addresses at AS distance 5	554234368	% Addresses at AS distance 5	13.1
Addresses at AS distance 6	161759616	% Addresses at AS distance 6	3.8
Addresses at AS distance 7	12996864	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8008192	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	541952	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	11264	% 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	235891486	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1522994976	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3479510592	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4033744960	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4195504576	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4208501440	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4216509632	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4217051584	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4217062848	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4217063360	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4217063360	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4217063360	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4217064640	% 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	370	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9078	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	33040	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27742	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6093	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1212	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	275	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	52	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	4	% 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	373	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9451	Cumulative % ASes by AS hops 3	12.1
ASes reachable by 4 AS hops	42491	Cumulative % ASes by AS hops 4	54.6
ASes reachable by 5 AS hops	70233	Cumulative % ASes by AS hops 5	90.2
ASes reachable by 6 AS hops	76326	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77538	Cumulative % ASes by AS hops 7	99.6
ASes reachable by 8 AS hops	77813	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77865	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77869	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77873	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77877	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77881	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77885	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	2547	New Entries	165	Removed Entries	111	Updated Entries	2271
		Report		Report		Report
Address Span	7884801	Address Span	151297	Address Span	64768	Address Span	7668736
Average address span per update	3095	Avg Span	916	Avg Span	583	Avg Span	3376
Average prefix size updated	23.36	Average prefix size	23.21	Average prefix size	23.59	Average prefix size	23.35
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /11 total	1	Prefix /11 announcements	0	Prefix /11 withdrawals	0	Prefix /11 path updates	1
Prefix /12 total	1	Prefix /12 announcements	0	Prefix /12 withdrawals	0	Prefix /12 path updates	1
Prefix /13 total	4	Prefix /13 announcements	0	Prefix /13 withdrawals	0	Prefix /13 path updates	4
Prefix /14 total	0	Prefix /14 announcements	0	Prefix /14 withdrawals	0	Prefix /14 path updates	0
Prefix /15 total	0	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	0
Prefix /16 total	4	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	4
Prefix /17 total	5	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	5
Prefix /18 total	18	Prefix /18 announcements	1	Prefix /18 withdrawals	1	Prefix /18 path updates	16
Prefix /19 total	19	Prefix /19 announcements	4	Prefix /19 withdrawals	0	Prefix /19 path updates	15
Prefix /20 total	226	Prefix /20 announcements	6	Prefix /20 withdrawals	1	Prefix /20 path updates	219
Prefix /21 total	92	Prefix /21 announcements	9	Prefix /21 withdrawals	5	Prefix /21 path updates	78
Prefix /22 total	119	Prefix /22 announcements	26	Prefix /22 withdrawals	8	Prefix /22 path updates	85
Prefix /23 total	129	Prefix /23 announcements	9	Prefix /23 withdrawals	5	Prefix /23 path updates	115
Prefix /24 total	1692	Prefix /24 announcements	109	Prefix /24 withdrawals	91	Prefix /24 path updates	1492
Prefix /25 total	236	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	236
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	4.42	Prefix /11 announcements	0.00	Prefix /11 withdrawals	0.00	Prefix /11 path updates	4.95
Prefix /12 total	1.37	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	1.54
Prefix /13 total	2.82	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	3.17
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	0.12	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.13
Prefix /17 total	0.24	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.27
Prefix /18 total	0.54	Prefix /18 announcements	0.46	Prefix /18 withdrawals	0.68	Prefix /18 path updates	0.53
Prefix /19 total	0.31	Prefix /19 announcements	1.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.27
Prefix /20 total	1.99	Prefix /20 announcements	0.81	Prefix /20 withdrawals	0.20	Prefix /20 path updates	2.16
Prefix /21 total	0.70	Prefix /21 announcements	1.06	Prefix /21 withdrawals	0.88	Prefix /21 path updates	0.67
Prefix /22 total	0.42	Prefix /22 announcements	1.43	Prefix /22 withdrawals	0.65	Prefix /22 path updates	0.34
Prefix /23 total	0.48	Prefix /23 announcements	0.52	Prefix /23 withdrawals	0.43	Prefix /23 path updates	0.48
Prefix /24 total	1.06	Prefix /24 announcements	1.06	Prefix /24 withdrawals	1.31	Prefix /24 path updates	1.05
Prefix /25 total	139.06	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	155.97
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	0.00	Prefix /29 withdrawals	0.00	Prefix /29 path updates	0.00
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	51.34	Prefix /32 announcements	792.49	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	2547.000	New Entries	165.000	Removed Entries	111.000	Updated Entries	2271.000
Address Span	7884801.000	Address Span	151297.000	Address Span	64768.000	Address Span	7668736.000
Average address span per update	3095.000	Avg Span	916.000	Avg Span	583.000	Avg Span	3376.000
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /1 update rate	0.000	Prefix /1 announcements	0.000	Prefix /1 withdrawals	0.000	Prefix /1 path updates	0.000
Prefix /2 update rate	0.000	Prefix /2 announcements	0.000	Prefix /2 withdrawals	0.000	Prefix /2 path updates	0.000
Prefix /3 update rate	0.000	Prefix /3 announcements	0.000	Prefix /3 withdrawals	0.000	Prefix /3 path updates	0.000
Prefix /4 update rate	0.000	Prefix /4 announcements	0.000	Prefix /4 withdrawals	0.000	Prefix /4 path updates	0.000
Prefix /5 update rate	0.000	Prefix /5 announcements	0.000	Prefix /5 withdrawals	0.000	Prefix /5 path updates	0.000
Prefix /6 update rate	0.000	Prefix /6 announcements	0.000	Prefix /6 withdrawals	0.000	Prefix /6 path updates	0.000
Prefix /7 update rate	0.000	Prefix /7 announcements	0.000	Prefix /7 withdrawals	0.000	Prefix /7 path updates	0.000
Prefix /8 update rate	0.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	0.000	Prefix /8 path updates	0.000
Prefix /9 update rate	0.000	Prefix /9 announcements	0.000	Prefix /9 withdrawals	0.000	Prefix /9 path updates	0.000
Prefix /10 update rate	0.000	Prefix /10 announcements	0.000	Prefix /10 withdrawals	0.000	Prefix /10 path updates	0.000
Prefix /11 update rate	1.000	Prefix /11 announcements	0.000	Prefix /11 withdrawals	0.000	Prefix /11 path updates	1.000
Prefix /12 update rate	1.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	1.000
Prefix /13 update rate	4.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	4.000
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	4.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	4.000
Prefix /17 update rate	5.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	5.000
Prefix /18 update rate	18.000	Prefix /18 announcements	1.000	Prefix /18 withdrawals	1.000	Prefix /18 path updates	16.000
Prefix /19 update rate	19.000	Prefix /19 announcements	4.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	15.000
Prefix /20 update rate	226.000	Prefix /20 announcements	6.000	Prefix /20 withdrawals	1.000	Prefix /20 path updates	219.000
Prefix /21 update rate	92.000	Prefix /21 announcements	9.000	Prefix /21 withdrawals	5.000	Prefix /21 path updates	78.000
Prefix /22 update rate	119.000	Prefix /22 announcements	26.000	Prefix /22 withdrawals	8.000	Prefix /22 path updates	85.000
Prefix /23 update rate	129.000	Prefix /23 announcements	9.000	Prefix /23 withdrawals	5.000	Prefix /23 path updates	115.000
Prefix /24 update rate	1692.000	Prefix /24 announcements	109.000	Prefix /24 withdrawals	91.000	Prefix /24 path updates	1492.000
Prefix /25 update rate	236.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	236.000
Prefix /26 update rate	0.000	Prefix /26 announcements	0.000	Prefix /26 withdrawals	0.000	Prefix /26 path updates	0.000
Prefix /27 update rate	0.000	Prefix /27 announcements	0.000	Prefix /27 withdrawals	0.000	Prefix /27 path updates	0.000
Prefix /28 update rate	0.000	Prefix /28 announcements	0.000	Prefix /28 withdrawals	0.000	Prefix /28 path updates	0.000
Prefix /29 update rate	0.000	Prefix /29 announcements	0.000	Prefix /29 withdrawals	0.000	Prefix /29 path updates	0.000
Prefix /30 update rate	0.000	Prefix /30 announcements	0.000	Prefix /30 withdrawals	0.000	Prefix /30 path updates	0.000
Prefix /31 update rate	0.000	Prefix /31 announcements	0.000	Prefix /31 withdrawals	0.000	Prefix /31 path updates	0.000
Prefix /32 update rate	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	774	Origin Paths	62	NextHop Paths	177	Transit Paths	176	Paths	332	Paths	27
Report
/11 Tot	1	/11 Org	0	/11 Nxt	0	/11 Trn	0	/11 Fst	1	/11 Prp	0
/12 Tot	1	/12 Org	0	/12 Nxt	0	/12 Trn	0	/12 Fst	1	/12 Prp	0
/13 Tot	4	/13 Org	0	/13 Nxt	0	/13 Trn	0	/13 Fst	4	/13 Prp	0
/14 Tot	0	/14 Org	0	/14 Nxt	0	/14 Trn	0	/14 Fst	0	/14 Prp	0
/15 Tot	0	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	0	/15 Prp	0
/16 Tot	4	/16 Org	0	/16 Nxt	4	/16 Trn	0	/16 Fst	0	/16 Prp	0
/17 Tot	5	/17 Org	0	/17 Nxt	3	/17 Trn	2	/17 Fst	0	/17 Prp	0
/18 Tot	16	/18 Org	0	/18 Nxt	3	/18 Trn	5	/18 Fst	5	/18 Prp	3
/19 Tot	15	/19 Org	0	/19 Nxt	10	/19 Trn	1	/19 Fst	2	/19 Prp	2
/20 Tot	219	/20 Org	0	/20 Nxt	164	/20 Trn	15	/20 Fst	38	/20 Prp	2
/21 Tot	78	/21 Org	0	/21 Nxt	17	/21 Trn	32	/21 Fst	28	/21 Prp	1
/22 Tot	85	/22 Org	0	/22 Nxt	32	/22 Trn	20	/22 Fst	31	/22 Prp	2
/23 Tot	115	/23 Org	0	/23 Nxt	53	/23 Trn	36	/23 Fst	21	/23 Prp	5
/24 Tot	1492	/24 Org	9	/24 Nxt	354	/24 Trn	669	/24 Fst	428	/24 Prp	32
/25 Tot	236	/25 Org	58	/25 Nxt	17	/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	42	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0010
AS's announcing span of /10	102	% 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	403	% AS's announcing span of /13	0.0052
AS's announcing span of /14	850	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1633	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1776	% AS's announcing span of /16	0.0230
AS's announcing span of /17	2439	% AS's announcing span of /17	0.0316
AS's announcing span of /18	3760	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5134	% AS's announcing span of /19	0.0665
AS's announcing span of /20	7669	% AS's announcing span of /20	0.0993
AS's announcing span of /21	10431	% AS's announcing span of /21	0.1351
AS's announcing span of /22	12872	% AS's announcing span of /22	0.1667
AS's announcing span of /23	10126	% AS's announcing span of /23	0.1311
AS's announcing span of /24	19443	% AS's announcing span of /24	0.2518
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	129258
Average AS Connectivity Degree (258516/77885)	3.3192
Average AS Connectivity IN:OUT Degree	0.1572
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	601822	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	588751	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	397419	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	397442	Report (sort by %reduction)	Report (sort by reduction)	BGP Table

BGP Table

Table Summary Report

BGP Report

BGP data obtained from the boundary of AS65000

Report last updated at Sun Dec 14 14:01:10 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