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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon May 25 22:01:09 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)	1055759	Change in FIB Size	12	Change (%)	0.001
All BGP entries (RIB)	3149204
RIB/FIB ratio (3149204/1055759)	2.9829
Valid entries	3149204
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)	3105335552
Total address space advertised (prefix length)	0.46789798
Percentage of IPv4 space advertised (3105335552/4294967295)	72.301728
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2941
Average address span (as prefix size)	20.4779
Average prefix length	22.9528

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	538061	Specifics as % of FIB entries (538061/1055759)	50.9644
Specifics as % of address span (1097608712/3105335552)	35.3459
Specifics where AS prepended Path matches aggregate	244128	AS-P_Path-Match % (244128/538061)	45.37
AS Path matches aggregate	264973	AS-Path-Match % (264973/538061)	49.2459
AS Origin matches aggregate	409955	AS-Origin-Match % (409955/538061)	76.1912
Root Prefixes	517698
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	460593
Root Prefixes with depth 1	46721
Root Prefixes with depth 2	8515
Root Prefixes with depth 3	1434
Root Prefixes with depth 4	331
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	78673	ASes visible in only one AS path	47607
Origin only ASes	67220	Origin ASs announced via a single AS path	47038
Transit only ASes	599	Originating AS ATOM count	78074
Mixed ASes	10854	Originating AS ATOM compression	0.0740
Multi-Origin Prefixes	1593
ASes originating a single prefix	27701
Average FIB entries per Origin AS	13.5225	Maximum entries for an origin AS (AS7713)	3726
Average address range span for an origin AS	39774.2597	Maximum address range for an origin AS (AS749)	227730432

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	276651	Unique AS prepended Paths	294694
AS Paths used in FIB	130323	AS Paths using prepending	66484
AS paths associated with a single FIB entry	62499	AS Paths using private ASs	18
Average AS path length	5.3034	Number of Prefixes with Selected AS Prepending Paths	144821
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	144821
Average address weighted AS path length	6.5489	Maximum prepended AS Path length	70
Average entries per AS Path	3.8162	Average entries per FIB AS Path	8.1011
AS Paths per origin AS	3.5434	FIB AS Paths per origin AS	1.6692
AS PATH ATOM compression	0.1234

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	298	% Prefix /12	0.03
Prefix count /13	583	% Prefix /13	0.06
Prefix count /14	1191	% Prefix /14	0.11
Prefix count /15	2118	% Prefix /15	0.20
Prefix count /16	13643	% Prefix /16	1.29
Prefix count /17	8387	% Prefix /17	0.79
Prefix count /18	13484	% Prefix /18	1.28
Prefix count /19	25800	% Prefix /19	2.44
Prefix count /20	47115	% Prefix /20	4.46
Prefix count /21	53098	% Prefix /21	5.03
Prefix count /22	114130	% Prefix /22	10.81
Prefix count /23	109354	% Prefix /23	10.36
Prefix count /24	665696	% Prefix /24	63.05
Prefix count /25	694	% 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	4	% Prefix /31	0.00
Prefix count /32	0	% 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	1624	% Prefix /15	0.31
Prefix count /16	10830	% Prefix /16	2.09
Prefix count /17	4521	% Prefix /17	0.87
Prefix count /18	7166	% Prefix /18	1.38
Prefix count /19	14921	% Prefix /19	2.88
Prefix count /20	20902	% Prefix /20	4.04
Prefix count /21	22863	% Prefix /21	4.42
Prefix count /22	60737	% Prefix /22	11.73
Prefix count /23	46264	% Prefix /23	8.94
Prefix count /24	325946	% Prefix /24	62.96
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	219120904	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1225420928	% Addresses at AS distance 3	29.2
Addresses at AS distance 4	1990083840	% Addresses at AS distance 4	47.3
Addresses at AS distance 5	581330048	% Addresses at AS distance 5	13.8
Addresses at AS distance 6	164987520	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	14045824	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7613952	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	307200	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	24576	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	2304	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	768	% 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	219126024	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1444546952	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3434630792	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4015960840	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4180948360	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4194994184	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4202608136	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4202915336	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4202939912	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4202942216	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4202942984	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4202942984	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4202944264	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4202944264	% 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	306	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6564	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	31026	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31316	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7706	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1366	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	310	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	48	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	11	% 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	309	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6873	Cumulative % ASes by AS hops 3	8.7
ASes reachable by 4 AS hops	37899	Cumulative % ASes by AS hops 4	48.2
ASes reachable by 5 AS hops	69215	Cumulative % ASes by AS hops 5	88.0
ASes reachable by 6 AS hops	76921	Cumulative % ASes by AS hops 6	97.8
ASes reachable by 7 AS hops	78287	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78597	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78645	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78656	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78661	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78665	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78669	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78673	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78673	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	2322	New Entries	293	Removed Entries	280	Updated Entries	1749
		Report		Report		Report
Address Span	1569280	Address Span	111360	Address Span	98816	Address Span	1359104
Average address span per update	675	Avg Span	380	Avg Span	352	Avg Span	777
Average prefix size updated	23.63	Average prefix size	23.76	Average prefix size	23.76	Average prefix size	23.59
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	1	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	1
Prefix /17 total	8	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	8
Prefix /18 total	8	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	8
Prefix /19 total	16	Prefix /19 announcements	1	Prefix /19 withdrawals	0	Prefix /19 path updates	15
Prefix /20 total	33	Prefix /20 announcements	3	Prefix /20 withdrawals	1	Prefix /20 path updates	29
Prefix /21 total	54	Prefix /21 announcements	1	Prefix /21 withdrawals	3	Prefix /21 path updates	50
Prefix /22 total	172	Prefix /22 announcements	8	Prefix /22 withdrawals	15	Prefix /22 path updates	149
Prefix /23 total	265	Prefix /23 announcements	35	Prefix /23 withdrawals	25	Prefix /23 path updates	205
Prefix /24 total	1531	Prefix /24 announcements	245	Prefix /24 withdrawals	236	Prefix /24 path updates	1050
Prefix /25 total	234	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	234
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	0	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	0
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	0.00	Prefix /8 announcements	0.00	Prefix /8 withdrawals	0.00	Prefix /8 path updates	0.00
Prefix /9 total	0.00	Prefix /9 announcements	0.00	Prefix /9 withdrawals	0.00	Prefix /9 path updates	0.00
Prefix /10 total	0.00	Prefix /10 announcements	0.00	Prefix /10 withdrawals	0.00	Prefix /10 path updates	0.00
Prefix /11 total	0.00	Prefix /11 announcements	0.00	Prefix /11 withdrawals	0.00	Prefix /11 path updates	0.00
Prefix /12 total	0.00	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	0.00
Prefix /13 total	0.00	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.00
Prefix /14 total	0.00	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.00
Prefix /15 total	0.00	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.00
Prefix /16 total	0.03	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.04
Prefix /17 total	0.43	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.58
Prefix /18 total	0.27	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.36
Prefix /19 total	0.28	Prefix /19 announcements	0.14	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.35
Prefix /20 total	0.32	Prefix /20 announcements	0.23	Prefix /20 withdrawals	0.08	Prefix /20 path updates	0.37
Prefix /21 total	0.46	Prefix /21 announcements	0.07	Prefix /21 withdrawals	0.21	Prefix /21 path updates	0.57
Prefix /22 total	0.69	Prefix /22 announcements	0.25	Prefix /22 withdrawals	0.50	Prefix /22 path updates	0.79
Prefix /23 total	1.10	Prefix /23 announcements	1.15	Prefix /23 withdrawals	0.86	Prefix /23 path updates	1.13
Prefix /24 total	1.05	Prefix /24 announcements	1.33	Prefix /24 withdrawals	1.34	Prefix /24 path updates	0.95
Prefix /25 total	153.31	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	203.53
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	0.00	Prefix /31 withdrawals	0.00	Prefix /31 path updates	0.00
Prefix /32 total	0.00	Prefix /32 announcements	100.00	Prefix /32 withdrawals	100.00	Prefix /32 path updates	100.00

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	2322.645	New Entries	293.081	Removed Entries	280.078	Updated Entries	1749.486
Address Span	1569716.000	Address Span	111390.945	Address Span	98843.453	Address Span	1359481.625
Average address span per update	675.188	Avg Span	380.106	Avg Span	352.098	Avg Span	777.216
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /1 update rate	0.000	Prefix /1 announcements	0.000	Prefix /1 withdrawals	0.000	Prefix /1 path updates	0.000
Prefix /2 update rate	0.000	Prefix /2 announcements	0.000	Prefix /2 withdrawals	0.000	Prefix /2 path updates	0.000
Prefix /3 update rate	0.000	Prefix /3 announcements	0.000	Prefix /3 withdrawals	0.000	Prefix /3 path updates	0.000
Prefix /4 update rate	0.000	Prefix /4 announcements	0.000	Prefix /4 withdrawals	0.000	Prefix /4 path updates	0.000
Prefix /5 update rate	0.000	Prefix /5 announcements	0.000	Prefix /5 withdrawals	0.000	Prefix /5 path updates	0.000
Prefix /6 update rate	0.000	Prefix /6 announcements	0.000	Prefix /6 withdrawals	0.000	Prefix /6 path updates	0.000
Prefix /7 update rate	0.000	Prefix /7 announcements	0.000	Prefix /7 withdrawals	0.000	Prefix /7 path updates	0.000
Prefix /8 update rate	0.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	0.000	Prefix /8 path updates	0.000
Prefix /9 update rate	0.000	Prefix /9 announcements	0.000	Prefix /9 withdrawals	0.000	Prefix /9 path updates	0.000
Prefix /10 update rate	0.000	Prefix /10 announcements	0.000	Prefix /10 withdrawals	0.000	Prefix /10 path updates	0.000
Prefix /11 update rate	0.000	Prefix /11 announcements	0.000	Prefix /11 withdrawals	0.000	Prefix /11 path updates	0.000
Prefix /12 update rate	0.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	0.000
Prefix /13 update rate	0.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	0.000
Prefix /14 update rate	0.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	0.000
Prefix /15 update rate	0.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	0.000
Prefix /16 update rate	1.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	1.000
Prefix /17 update rate	8.002	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	8.002
Prefix /18 update rate	8.002	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	8.002
Prefix /19 update rate	16.004	Prefix /19 announcements	1.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	15.004
Prefix /20 update rate	33.009	Prefix /20 announcements	3.001	Prefix /20 withdrawals	1.000	Prefix /20 path updates	29.008
Prefix /21 update rate	54.015	Prefix /21 announcements	1.000	Prefix /21 withdrawals	3.001	Prefix /21 path updates	50.014
Prefix /22 update rate	172.048	Prefix /22 announcements	8.002	Prefix /22 withdrawals	15.004	Prefix /22 path updates	149.041
Prefix /23 update rate	265.074	Prefix /23 announcements	35.010	Prefix /23 withdrawals	25.007	Prefix /23 path updates	205.057
Prefix /24 update rate	1531.425	Prefix /24 announcements	245.068	Prefix /24 withdrawals	236.066	Prefix /24 path updates	1050.292
Prefix /25 update rate	234.065	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	234.065
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	665	Origin Paths	61	NextHop Paths	133	Transit Paths	207	Paths	233	Paths	31
Report
/16 Tot	1	/16 Org	0	/16 Nxt	0	/16 Trn	1	/16 Fst	0	/16 Prp	0
/17 Tot	8	/17 Org	0	/17 Nxt	2	/17 Trn	5	/17 Fst	1	/17 Prp	0
/18 Tot	8	/18 Org	0	/18 Nxt	1	/18 Trn	6	/18 Fst	1	/18 Prp	0
/19 Tot	15	/19 Org	0	/19 Nxt	6	/19 Trn	5	/19 Fst	4	/19 Prp	0
/20 Tot	29	/20 Org	0	/20 Nxt	2	/20 Trn	15	/20 Fst	12	/20 Prp	0
/21 Tot	50	/21 Org	0	/21 Nxt	4	/21 Trn	26	/21 Fst	20	/21 Prp	0
/22 Tot	149	/22 Org	0	/22 Nxt	33	/22 Trn	59	/22 Fst	42	/22 Prp	15
/23 Tot	205	/23 Org	0	/23 Nxt	22	/23 Trn	100	/23 Fst	65	/23 Prp	18
/24 Tot	1050	/24 Org	4	/24 Nxt	190	/24 Trn	597	/24 Fst	218	/24 Prp	41
/25 Tot	234	/25 Org	60	/25 Nxt	17	/25 Trn	0	/25 Fst	157	/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	103	% AS's announcing span of /10	0.0013
AS's announcing span of /11	174	% AS's announcing span of /11	0.0022
AS's announcing span of /12	242	% AS's announcing span of /12	0.0031
AS's announcing span of /13	391	% AS's announcing span of /13	0.0050
AS's announcing span of /14	847	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1627	% AS's announcing span of /15	0.0209
AS's announcing span of /16	1736	% AS's announcing span of /16	0.0222
AS's announcing span of /17	2433	% AS's announcing span of /17	0.0312
AS's announcing span of /18	3769	% AS's announcing span of /18	0.0483
AS's announcing span of /19	5097	% AS's announcing span of /19	0.0653
AS's announcing span of /20	7552	% AS's announcing span of /20	0.0968
AS's announcing span of /21	10405	% AS's announcing span of /21	0.1333
AS's announcing span of /22	13181	% AS's announcing span of /22	0.1689
AS's announcing span of /23	10413	% AS's announcing span of /23	0.1335
AS's announcing span of /24	19890	% AS's announcing span of /24	0.2549
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	1	% 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	128964
Average AS Connectivity Degree (257928/78673)	3.2785
Average AS Connectivity IN:OUT Degree	0.1522
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	588797	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	574288	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	405932	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	405941	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 25 22:01:09 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