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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Feb 12 19:01:10 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)	1058073	Change in FIB Size	-134	Change (%)	-0.013
All BGP entries (RIB)	3136196
RIB/FIB ratio (3136196/1058073)	2.9641
Valid entries	3136196
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)	3104417152
Total address space advertised (prefix length)	0.46832472
Percentage of IPv4 space advertised (3104417152/4294967295)	72.280344
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2934
Average address span (as prefix size)	20.4813
Average prefix length	22.9469

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	549325	Specifics as % of FIB entries (549325/1058073)	51.9175
Specifics as % of address span (1115445630/3104417152)	35.9309
Specifics where AS prepended Path matches aggregate	237866	AS-P_Path-Match % (237866/549325)	43.30
AS Path matches aggregate	256932	AS-Path-Match % (256932/549325)	46.7723
AS Origin matches aggregate	421744	AS-Origin-Match % (421744/549325)	76.7750
Root Prefixes	508748
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	450234
Root Prefixes with depth 1	47268
Root Prefixes with depth 2	9162
Root Prefixes with depth 3	1593
Root Prefixes with depth 4	380
Root Prefixes with depth 5	77
Root Prefixes with depth 6	27
Root Prefixes with depth 7	6
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	78157	ASes visible in only one AS path	46503
Origin only ASes	66709	Origin ASs announced via a single AS path	45954
Transit only ASes	591	Originating AS ATOM count	77566
Mixed ASes	10857	Originating AS ATOM compression	0.0733
Multi-Origin Prefixes	2181
ASes originating a single prefix	27092
Average FIB entries per Origin AS	13.6409	Maximum entries for an origin AS (AS34984)	2448
Average address range span for an origin AS	40022.9115	Maximum address range for an origin AS (AS749)	227731712

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	267593	Unique AS prepended Paths	284653
AS Paths used in FIB	132846	AS Paths using prepending	64699
AS paths associated with a single FIB entry	63611	AS Paths using private ASs	22
Average AS path length	5.2204	Number of Prefixes with Selected AS Prepending Paths	139203
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	139203
Average address weighted AS path length	6.5648	Maximum prepended AS Path length	97
Average entries per AS Path	3.9540	Average entries per FIB AS Path	7.9647
AS Paths per origin AS	3.4499	FIB AS Paths per origin AS	1.7127
AS PATH ATOM compression	0.1256

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	40	% Prefix /10	0.00
Prefix count /11	92	% Prefix /11	0.01
Prefix count /12	302	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1202	% Prefix /14	0.11
Prefix count /15	2103	% Prefix /15	0.20
Prefix count /16	13749	% Prefix /16	1.30
Prefix count /17	8432	% Prefix /17	0.80
Prefix count /18	13778	% Prefix /18	1.30
Prefix count /19	25468	% Prefix /19	2.41
Prefix count /20	47252	% Prefix /20	4.47
Prefix count /21	53798	% Prefix /21	5.08
Prefix count /22	115464	% Prefix /22	10.91
Prefix count /23	111465	% Prefix /23	10.53
Prefix count /24	663623	% Prefix /24	62.72
Prefix count /25	683	% Prefix /25	0.06
Prefix count /26	1	% 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	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	40	% Prefix /10	0.01
Prefix count /11	87	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1026	% Prefix /14	0.20
Prefix count /15	1629	% Prefix /15	0.32
Prefix count /16	10905	% Prefix /16	2.14
Prefix count /17	4471	% Prefix /17	0.88
Prefix count /18	7054	% Prefix /18	1.39
Prefix count /19	14903	% Prefix /19	2.93
Prefix count /20	20512	% Prefix /20	4.03
Prefix count /21	22824	% Prefix /21	4.49
Prefix count /22	60255	% Prefix /22	11.84
Prefix count /23	45347	% Prefix /23	8.91
Prefix count /24	318911	% Prefix /24	62.69
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	208072798	% Addresses at AS distance 2	4.9
Addresses at AS distance 3	1276324224	% Addresses at AS distance 3	30.2
Addresses at AS distance 4	1980955680	% Addresses at AS distance 4	46.9
Addresses at AS distance 5	570737664	% Addresses at AS distance 5	13.5
Addresses at AS distance 6	160959488	% Addresses at AS distance 6	3.8
Addresses at AS distance 7	12837888	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8568064	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	1200384	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	18944	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1024	% 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	180224	% 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	208077918	% Addresses reachable within 2 AS hops	4
Addresses reachable within 3 AS hops	1484402142	% Addresses reachable within 3 AS hops	35
Addresses reachable within 4 AS hops	3465357822	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4036095486	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4197054974	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4209892862	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4218460926	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4219661310	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4219680254	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4219681278	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4219681278	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4219861502	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4219862782	% 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	219	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	8217	% ASes reachable at 3 AS hops	10
ASes reachable at 4 AS hops	33783	% ASes reachable at 4 AS hops	43
ASes reachable at 5 AS hops	28251	% ASes reachable at 5 AS hops	36
ASes reachable at 6 AS hops	6087	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1230	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	295	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	50	% 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	6	% 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	222	Cumulative % ASes by AS hops 2	0.3
ASes reachable by 3 AS hops	8439	Cumulative % ASes by AS hops 3	10.8
ASes reachable by 4 AS hops	42222	Cumulative % ASes by AS hops 4	54.0
ASes reachable by 5 AS hops	70473	Cumulative % ASes by AS hops 5	90.2
ASes reachable by 6 AS hops	76560	Cumulative % ASes by AS hops 6	98.0
ASes reachable by 7 AS hops	77790	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78085	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78135	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78139	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78145	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78149	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78153	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78157	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	3611	New Entries	210	Removed Entries	353	Updated Entries	3048
		Report		Report		Report
Address Span	2578305	Address Span	128256	Address Span	228609	Address Span	2221440
Average address span per update	714	Avg Span	610	Avg Span	647	Avg Span	728
Average prefix size updated	23.63	Average prefix size	23.55	Average prefix size	23.48	Average prefix size	23.65
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	6	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	6
Prefix /17 total	6	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	6
Prefix /18 total	9	Prefix /18 announcements	0	Prefix /18 withdrawals	1	Prefix /18 path updates	8
Prefix /19 total	35	Prefix /19 announcements	1	Prefix /19 withdrawals	3	Prefix /19 path updates	31
Prefix /20 total	74	Prefix /20 announcements	13	Prefix /20 withdrawals	12	Prefix /20 path updates	49
Prefix /21 total	85	Prefix /21 announcements	5	Prefix /21 withdrawals	15	Prefix /21 path updates	65
Prefix /22 total	211	Prefix /22 announcements	7	Prefix /22 withdrawals	23	Prefix /22 path updates	181
Prefix /23 total	295	Prefix /23 announcements	9	Prefix /23 withdrawals	31	Prefix /23 path updates	255
Prefix /24 total	2658	Prefix /24 announcements	175	Prefix /24 withdrawals	267	Prefix /24 path updates	2216
Prefix /25 total	231	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	231
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	0	Prefix /32 withdrawals	1	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	0.13	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.15
Prefix /17 total	0.21	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.25
Prefix /18 total	0.19	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.22	Prefix /18 path updates	0.20
Prefix /19 total	0.40	Prefix /19 announcements	0.20	Prefix /19 withdrawals	0.35	Prefix /19 path updates	0.42
Prefix /20 total	0.46	Prefix /20 announcements	1.39	Prefix /20 withdrawals	0.76	Prefix /20 path updates	0.36
Prefix /21 total	0.46	Prefix /21 announcements	0.47	Prefix /21 withdrawals	0.84	Prefix /21 path updates	0.42
Prefix /22 total	0.54	Prefix /22 announcements	0.31	Prefix /22 withdrawals	0.60	Prefix /22 path updates	0.54
Prefix /23 total	0.78	Prefix /23 announcements	0.41	Prefix /23 withdrawals	0.83	Prefix /23 path updates	0.79
Prefix /24 total	1.17	Prefix /24 announcements	1.33	Prefix /24 withdrawals	1.21	Prefix /24 path updates	1.16
Prefix /25 total	99.10	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	117.41
Prefix /26 total	0.00	Prefix /26 announcements	0.00	Prefix /26 withdrawals	0.00	Prefix /26 path updates	0.00
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	48.84	Prefix /32 announcements	0.00	Prefix /32 withdrawals	499.56	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	3611.000	New Entries	210.000	Removed Entries	353.000	Updated Entries	3048.000
Address Span	2578305.000	Address Span	128256.000	Address Span	228609.000	Address Span	2221440.000
Average address span per update	714.000	Avg Span	610.000	Avg Span	647.000	Avg Span	728.000
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	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	6.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	6.000
Prefix /17 update rate	6.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	6.000
Prefix /18 update rate	9.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	1.000	Prefix /18 path updates	8.000
Prefix /19 update rate	35.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	3.000	Prefix /19 path updates	31.000
Prefix /20 update rate	74.000	Prefix /20 announcements	13.000	Prefix /20 withdrawals	12.000	Prefix /20 path updates	49.000
Prefix /21 update rate	85.000	Prefix /21 announcements	5.000	Prefix /21 withdrawals	15.000	Prefix /21 path updates	65.000
Prefix /22 update rate	211.000	Prefix /22 announcements	7.000	Prefix /22 withdrawals	23.000	Prefix /22 path updates	181.000
Prefix /23 update rate	295.000	Prefix /23 announcements	9.000	Prefix /23 withdrawals	31.000	Prefix /23 path updates	255.000
Prefix /24 update rate	2658.000	Prefix /24 announcements	175.000	Prefix /24 withdrawals	267.000	Prefix /24 path updates	2216.000
Prefix /25 update rate	231.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	231.000
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	0.000	Prefix /32 withdrawals	1.000	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	866	Origin Paths	62	NextHop Paths	266	Transit Paths	223	Paths	289	Paths	26
Report
/16 Tot	6	/16 Org	0	/16 Nxt	2	/16 Trn	2	/16 Fst	2	/16 Prp	0
/17 Tot	6	/17 Org	0	/17 Nxt	1	/17 Trn	4	/17 Fst	1	/17 Prp	0
/18 Tot	8	/18 Org	0	/18 Nxt	5	/18 Trn	3	/18 Fst	0	/18 Prp	0
/19 Tot	31	/19 Org	0	/19 Nxt	12	/19 Trn	12	/19 Fst	4	/19 Prp	3
/20 Tot	49	/20 Org	0	/20 Nxt	22	/20 Trn	19	/20 Fst	6	/20 Prp	2
/21 Tot	65	/21 Org	0	/21 Nxt	28	/21 Trn	22	/21 Fst	6	/21 Prp	9
/22 Tot	181	/22 Org	0	/22 Nxt	64	/22 Trn	76	/22 Fst	20	/22 Prp	21
/23 Tot	255	/23 Org	1	/23 Nxt	91	/23 Trn	114	/23 Fst	29	/23 Prp	20
/24 Tot	2216	/24 Org	52	/24 Nxt	512	/24 Trn	1321	/24 Fst	282	/24 Prp	49
/25 Tot	231	/25 Org	57	/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	76	% AS's announcing span of /9	0.0010
AS's announcing span of /10	103	% 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	0.0031
AS's announcing span of /13	400	% AS's announcing span of /13	0.0052
AS's announcing span of /14	845	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1630	% AS's announcing span of /15	0.0210
AS's announcing span of /16	1765	% AS's announcing span of /16	0.0228
AS's announcing span of /17	2462	% AS's announcing span of /17	0.0318
AS's announcing span of /18	3758	% AS's announcing span of /18	0.0485
AS's announcing span of /19	5162	% AS's announcing span of /19	0.0666
AS's announcing span of /20	7637	% AS's announcing span of /20	0.0985
AS's announcing span of /21	10485	% AS's announcing span of /21	0.1353
AS's announcing span of /22	12907	% AS's announcing span of /22	0.1665
AS's announcing span of /23	10153	% AS's announcing span of /23	0.1310
AS's announcing span of /24	19617	% AS's announcing span of /24	0.2531
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	129918
Average AS Connectivity Degree (259836/78157)	3.3245
Average AS Connectivity IN:OUT Degree	0.1575
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	592578	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	578712	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	400517	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	400542	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 Thu Feb 12 19:01:10 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