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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Tue May 12 18:01:10 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)	1053148	Change in FIB Size	-91	Change (%)	-0.009
All BGP entries (RIB)	3140196
RIB/FIB ratio (3140196/1053148)	2.9817
Valid entries	3140196
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)	3104456960
Total address space advertised (prefix length)	0.46830622
Percentage of IPv4 space advertised (3104456960/4294967295)	72.281271
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2948
Average address span (as prefix size)	20.4750
Average prefix length	22.9513

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	535863	Specifics as % of FIB entries (535863/1053148)	50.8820
Specifics as % of address span (1096874761/3104456960)	35.3323
Specifics where AS prepended Path matches aggregate	232135	AS-P_Path-Match % (232135/535863)	43.32
AS Path matches aggregate	250226	AS-Path-Match % (250226/535863)	46.6959
AS Origin matches aggregate	408233	AS-Origin-Match % (408233/535863)	76.1823
Root Prefixes	517285
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	460232
Root Prefixes with depth 1	46690
Root Prefixes with depth 2	8511
Root Prefixes with depth 3	1424
Root Prefixes with depth 4	325
Root Prefixes with depth 5	71
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	78652	ASes visible in only one AS path	46886
Origin only ASes	67198	Origin ASs announced via a single AS path	46298
Transit only ASes	615	Originating AS ATOM count	78037
Mixed ASes	10839	Originating AS ATOM compression	0.0741
Multi-Origin Prefixes	1648
ASes originating a single prefix	27645
Average FIB entries per Origin AS	13.4955	Maximum entries for an origin AS (AS7713)	3722
Average address range span for an origin AS	39781.8594	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	276175	Unique AS prepended Paths	294391
AS Paths used in FIB	133740	AS Paths using prepending	66928
AS paths associated with a single FIB entry	64699	AS Paths using private ASs	15
Average AS path length	5.3089	Number of Prefixes with Selected AS Prepending Paths	142100
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	142100
Average address weighted AS path length	6.5565	Maximum prepended AS Path length	70
Average entries per AS Path	3.8133	Average entries per FIB AS Path	7.8746
AS Paths per origin AS	3.5390	FIB AS Paths per origin AS	1.7138
AS PATH ATOM compression	0.1270

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	584	% Prefix /13	0.06
Prefix count /14	1194	% Prefix /14	0.11
Prefix count /15	2113	% Prefix /15	0.20
Prefix count /16	13642	% Prefix /16	1.30
Prefix count /17	8396	% Prefix /17	0.80
Prefix count /18	13475	% Prefix /18	1.28
Prefix count /19	25777	% Prefix /19	2.45
Prefix count /20	47060	% Prefix /20	4.47
Prefix count /21	53071	% Prefix /21	5.04
Prefix count /22	114102	% Prefix /22	10.83
Prefix count /23	108693	% Prefix /23	10.32
Prefix count /24	663881	% Prefix /24	63.04
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	9	% 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	10823	% Prefix /16	2.09
Prefix count /17	4513	% Prefix /17	0.87
Prefix count /18	7157	% Prefix /18	1.38
Prefix count /19	14901	% Prefix /19	2.88
Prefix count /20	20911	% Prefix /20	4.04
Prefix count /21	22964	% Prefix /21	4.44
Prefix count /22	60808	% Prefix /22	11.76
Prefix count /23	46178	% Prefix /23	8.93
Prefix count /24	325482	% Prefix /24	62.92
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	218658825	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1221039488	% Addresses at AS distance 3	29.1
Addresses at AS distance 4	1974695808	% Addresses at AS distance 4	47.0
Addresses at AS distance 5	598691712	% Addresses at AS distance 5	14.3
Addresses at AS distance 6	165895808	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	14289664	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7719936	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	309760	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	22528	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	1280	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	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	218663945	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1439703433	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3414399241	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4013090953	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4178986761	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4193276425	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4200996361	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4201306121	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4201328649	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4201329929	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4201330441	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4201330441	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4201331721	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4201331721	% 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	302	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6514	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	30885	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31449	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7734	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1390	% 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	52	% 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	305	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6819	Cumulative % ASes by AS hops 3	8.7
ASes reachable by 4 AS hops	37704	Cumulative % ASes by AS hops 4	47.9
ASes reachable by 5 AS hops	69153	Cumulative % ASes by AS hops 5	87.9
ASes reachable by 6 AS hops	76887	Cumulative % ASes by AS hops 6	97.8
ASes reachable by 7 AS hops	78277	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78572	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78624	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78635	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78640	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78644	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78648	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78652	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78652	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	5633	New Entries	351	Removed Entries	449	Updated Entries	4833
		Report		Report		Report
Address Span	7775744	Address Span	120320	Address Span	632832	Address Span	7022592
Average address span per update	1380	Avg Span	342	Avg Span	1409	Avg Span	1453
Average prefix size updated	22.90	Average prefix size	23.81	Average prefix size	23.26	Average prefix size	22.80
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	1	Prefix /16 path updates	5
Prefix /17 total	8	Prefix /17 announcements	0	Prefix /17 withdrawals	3	Prefix /17 path updates	5
Prefix /18 total	39	Prefix /18 announcements	0	Prefix /18 withdrawals	10	Prefix /18 path updates	29
Prefix /19 total	321	Prefix /19 announcements	1	Prefix /19 withdrawals	14	Prefix /19 path updates	306
Prefix /20 total	157	Prefix /20 announcements	0	Prefix /20 withdrawals	6	Prefix /20 path updates	151
Prefix /21 total	837	Prefix /21 announcements	4	Prefix /21 withdrawals	13	Prefix /21 path updates	820
Prefix /22 total	356	Prefix /22 announcements	12	Prefix /22 withdrawals	30	Prefix /22 path updates	314
Prefix /23 total	621	Prefix /23 announcements	24	Prefix /23 withdrawals	52	Prefix /23 path updates	545
Prefix /24 total	3056	Prefix /24 announcements	310	Prefix /24 withdrawals	320	Prefix /24 path updates	2426
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	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	0.08	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.17	Prefix /16 path updates	0.08
Prefix /17 total	0.18	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.84	Prefix /17 path updates	0.13
Prefix /18 total	0.54	Prefix /18 announcements	0.00	Prefix /18 withdrawals	1.74	Prefix /18 path updates	0.47
Prefix /19 total	2.33	Prefix /19 announcements	0.12	Prefix /19 withdrawals	1.27	Prefix /19 path updates	2.59
Prefix /20 total	0.62	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.30	Prefix /20 path updates	0.70
Prefix /21 total	2.95	Prefix /21 announcements	0.23	Prefix /21 withdrawals	0.57	Prefix /21 path updates	3.37
Prefix /22 total	0.58	Prefix /22 announcements	0.32	Prefix /22 withdrawals	0.62	Prefix /22 path updates	0.60
Prefix /23 total	1.07	Prefix /23 announcements	0.66	Prefix /23 withdrawals	1.12	Prefix /23 path updates	1.09
Prefix /24 total	0.86	Prefix /24 announcements	1.40	Prefix /24 withdrawals	1.13	Prefix /24 path updates	0.80
Prefix /25 total	62.86	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	73.27
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 1 hrs 0 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	5633.000	New Entries	351.000	Removed Entries	449.000	Updated Entries	4833.000
Address Span	7775744.000	Address Span	120320.000	Address Span	632832.000	Address Span	7022592.000
Average address span per update	1380.000	Avg Span	342.000	Avg Span	1409.000	Avg Span	1453.000
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	1.000	Prefix /16 path updates	5.000
Prefix /17 update rate	8.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	3.000	Prefix /17 path updates	5.000
Prefix /18 update rate	39.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	10.000	Prefix /18 path updates	29.000
Prefix /19 update rate	321.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	14.000	Prefix /19 path updates	306.000
Prefix /20 update rate	157.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	6.000	Prefix /20 path updates	151.000
Prefix /21 update rate	837.000	Prefix /21 announcements	4.000	Prefix /21 withdrawals	13.000	Prefix /21 path updates	820.000
Prefix /22 update rate	356.000	Prefix /22 announcements	12.000	Prefix /22 withdrawals	30.000	Prefix /22 path updates	314.000
Prefix /23 update rate	621.000	Prefix /23 announcements	24.000	Prefix /23 withdrawals	52.000	Prefix /23 path updates	545.000
Prefix /24 update rate	3056.000	Prefix /24 announcements	310.000	Prefix /24 withdrawals	320.000	Prefix /24 path updates	2426.000
Prefix /25 update rate	232.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	232.000
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	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

893

317

200

294

Report

/16 Tot

/16 Org

/16 Nxt

/16 Trn

/16 Fst

/16 Prp

/17 Tot

/17 Org

/17 Nxt

/17 Trn

/17 Fst

/17 Prp

/18 Tot

/18 Org

/18 Nxt

/18 Trn

/18 Fst

/18 Prp

/19 Tot

306

/19 Org

/19 Nxt

281

/19 Trn

/19 Fst

/19 Prp

/20 Tot

151

/20 Org

/20 Nxt

/20 Trn

/20 Fst

/20 Prp

/21 Tot

820

/21 Org

/21 Nxt

764

/21 Trn

/21 Fst

/21 Prp

/22 Tot

314

/22 Org

/22 Nxt

154

/22 Trn

116

/22 Fst

/22 Prp

/23 Tot

545

/23 Org

/23 Nxt

399

/23 Trn

/23 Fst

/23 Prp

/24 Tot

2426

/24 Org

/24 Nxt

1542

/24 Trn

566

/24 Fst

243

/24 Prp

/25 Tot

232

/25 Org

/25 Nxt

/25 Trn

/25 Fst

165

/25 Prp

/26 Tot

/26 Org

/26 Nxt

/26 Trn

/26 Fst

/26 Prp

/27 Tot

/27 Org

/27 Nxt

/27 Trn

/27 Fst

/27 Prp

/28 Tot

/28 Org

/28 Nxt

/28 Trn

/28 Fst

/28 Prp

/29 Tot

/29 Org

/29 Nxt

/29 Trn

/29 Fst

/29 Prp

/30 Tot

/30 Org

/30 Nxt

/30 Trn

/30 Fst

/30 Prp

/31 Tot

/31 Org

/31 Nxt

/31 Trn

/31 Fst

/31 Prp

/32 Tot

/32 Org

/32 Nxt

/32 Trn

/32 Fst

/32 Prp

AS Announcement Reports

The time trend of total span of address space advertised by ASes, using truncated prefix length as the span metric.

AS Announcements Reports	Data Sets(txt)	Percentage Reports	Data
Originating Addresses AS Count	(data)	Originating Addresses % AS Count	(data)
AS's announcing span of /4	2	% AS's announcing span of /4	0.0000
AS's announcing span of /5	5	% AS's announcing span of /5	0.0001
AS's announcing span of /6	11	% AS's announcing span of /6	0.0001
AS's announcing span of /7	20	% AS's announcing span of /7	0.0003
AS's announcing span of /8	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	173	% AS's announcing span of /11	0.0022
AS's announcing span of /12	241	% AS's announcing span of /12	0.0031
AS's announcing span of /13	395	% AS's announcing span of /13	0.0051
AS's announcing span of /14	848	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1623	% AS's announcing span of /15	0.0208
AS's announcing span of /16	1729	% AS's announcing span of /16	0.0222
AS's announcing span of /17	2430	% AS's announcing span of /17	0.0312
AS's announcing span of /18	3758	% AS's announcing span of /18	0.0482
AS's announcing span of /19	5115	% AS's announcing span of /19	0.0656
AS's announcing span of /20	7562	% AS's announcing span of /20	0.0970
AS's announcing span of /21	10424	% AS's announcing span of /21	0.1337
AS's announcing span of /22	13182	% AS's announcing span of /22	0.1690
AS's announcing span of /23	10397	% AS's announcing span of /23	0.1333
AS's announcing span of /24	19835	% AS's announcing span of /24	0.2544
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.

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AS Connectivity Report	Data
AS Adjacency Count	128724
Average AS Connectivity Degree (257448/78652)	3.2733
Average AS Connectivity IN:OUT Degree	0.1520
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	601233	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	588012	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	405435	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	405455	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 Tue May 12 18:01:10 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