BGP Home Table Reports CIDR Reports Update Reports IPv4 Reports IPv6 Reports ASN Reports Distribution Reports

AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Jun 30 21:01:09 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)	1014646	Change in FIB Size	-31	Change (%)	-0.003
All BGP entries (RIB)	3004432
RIB/FIB ratio (3004432/1014646)	2.9611
Valid entries	3004432
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)	3107080576
Total address space advertised (prefix length)	0.46708749
Percentage of IPv4 space advertised (3107080576/4294967295)	72.342357
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3062
Average address span (as prefix size)	20.4197
Average prefix length	22.9152

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	530200	Specifics as % of FIB entries (530200/1014646)	52.2547
Specifics as % of address span (1109780854/3107080576)	35.7178
Specifics where AS prepended Path matches aggregate	227473	AS-P_Path-Match % (227473/530200)	42.90
AS Path matches aggregate	247506	AS-Path-Match % (247506/530200)	46.6816
AS Origin matches aggregate	407946	AS-Origin-Match % (407946/530200)	76.9419
Root Prefixes	484446
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	426709
Root Prefixes with depth 1	46538
Root Prefixes with depth 2	9094
Root Prefixes with depth 3	1601
Root Prefixes with depth 4	396
Root Prefixes with depth 5	79
Root Prefixes with depth 6	22
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	77229	ASes visible in only one AS path	45819
Origin only ASes	65753	Origin ASs announced via a single AS path	45269
Transit only ASes	595	Originating AS ATOM count	76634
Mixed ASes	10881	Originating AS ATOM compression	0.0755
Multi-Origin Prefixes	1963
ASes originating a single prefix	26735
Average FIB entries per Origin AS	13.2402	Maximum entries for an origin AS (AS7713)	3700
Average address range span for an origin AS	40544.4134	Maximum address range for an origin AS (AS749)	227888896

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	252093	Unique AS prepended Paths	271703
AS Paths used in FIB	130360	AS Paths using prepending	71354
AS paths associated with a single FIB entry	62136	AS Paths using private ASs	35
Average AS path length	5.2565	Number of Prefixes with Selected AS Prepending Paths	153013
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	153013
Average address weighted AS path length	6.6182	Maximum prepended AS Path length	91
Average entries per AS Path	4.0249	Average entries per FIB AS Path	7.7834
AS Paths per origin AS	3.2896	FIB AS Paths per origin AS	1.7011
AS PATH ATOM compression	0.1285

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	92	% Prefix /11	0.01
Prefix count /12	299	% Prefix /12	0.03
Prefix count /13	585	% Prefix /13	0.06
Prefix count /14	1210	% Prefix /14	0.12
Prefix count /15	2161	% Prefix /15	0.21
Prefix count /16	13868	% Prefix /16	1.37
Prefix count /17	8388	% Prefix /17	0.83
Prefix count /18	13798	% Prefix /18	1.36
Prefix count /19	25065	% Prefix /19	2.47
Prefix count /20	45933	% Prefix /20	4.53
Prefix count /21	53362	% Prefix /21	5.26
Prefix count /22	114356	% Prefix /22	11.27
Prefix count /23	107850	% Prefix /23	10.63
Prefix count /24	626751	% Prefix /24	61.77
Prefix count /25	799	% Prefix /25	0.08
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	2	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	54	% Prefix /32	0.01

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	85	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.05
Prefix count /13	490	% Prefix /13	0.10
Prefix count /14	1030	% Prefix /14	0.21
Prefix count /15	1654	% Prefix /15	0.34
Prefix count /16	11034	% Prefix /16	2.28
Prefix count /17	4450	% Prefix /17	0.92
Prefix count /18	6966	% Prefix /18	1.44
Prefix count /19	14785	% Prefix /19	3.05
Prefix count /20	20158	% Prefix /20	4.16
Prefix count /21	22541	% Prefix /21	4.65
Prefix count /22	59577	% Prefix /22	12.30
Prefix count /23	43297	% Prefix /23	8.94
Prefix count /24	298038	% Prefix /24	61.52
Prefix count /25	11	% 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	240877221	% Addresses at AS distance 2	5.7
Addresses at AS distance 3	1133369517	% Addresses at AS distance 3	26.9
Addresses at AS distance 4	1991520932	% Addresses at AS distance 4	47.2
Addresses at AS distance 5	645073024	% Addresses at AS distance 5	15.3
Addresses at AS distance 6	178002560	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	19618304	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	7960320	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	390400	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	41728	% 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	0	% Addresses at AS distance 13	0.0
Addresses at AS distance 14	0	% Addresses at AS distance 14	0.0
Addresses at AS distance 15	1280	% 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	240882341	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1374251858	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3365772790	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4010845814	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4188848374	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4208466678	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4216426998	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4216817398	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4216859126	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4216860150	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4216860150	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4216860150	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4216860150	% Addresses reachable within 14 AS hops	99
Addresses reachable within 15 AS hops	4216861430	% 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	362	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9715	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28993	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28778	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7431	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1525	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	329	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	64	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	12	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	1	% 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	4	% 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	365	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	10080	Cumulative % ASes by AS hops 3	13.1
ASes reachable by 4 AS hops	39073	Cumulative % ASes by AS hops 4	50.6
ASes reachable by 5 AS hops	67851	Cumulative % ASes by AS hops 5	87.9
ASes reachable by 6 AS hops	75282	Cumulative % ASes by AS hops 6	97.5
ASes reachable by 7 AS hops	76807	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77136	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77200	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77212	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77213	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77217	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77221	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77225	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	77229	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	2806	New Entries	193	Removed Entries	226	Updated Entries	2387
		Report		Report		Report
Address Span	2134914	Address Span	90880	Address Span	114176	Address Span	1929858
Average address span per update	760	Avg Span	470	Avg Span	505	Avg Span	808
Average prefix size updated	23.43	Average prefix size	23.65	Average prefix size	23.72	Average prefix size	23.39
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	5	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	5
Prefix /19 total	14	Prefix /19 announcements	1	Prefix /19 withdrawals	4	Prefix /19 path updates	9
Prefix /20 total	112	Prefix /20 announcements	5	Prefix /20 withdrawals	3	Prefix /20 path updates	104
Prefix /21 total	100	Prefix /21 announcements	1	Prefix /21 withdrawals	4	Prefix /21 path updates	95
Prefix /22 total	305	Prefix /22 announcements	9	Prefix /22 withdrawals	3	Prefix /22 path updates	293
Prefix /23 total	355	Prefix /23 announcements	22	Prefix /23 withdrawals	14	Prefix /23 path updates	319
Prefix /24 total	1635	Prefix /24 announcements	155	Prefix /24 withdrawals	198	Prefix /24 path updates	1282
Prefix /25 total	269	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	269
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	2	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	2
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	0.03
Prefix /17 total	0.34	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.41
Prefix /18 total	0.13	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.15
Prefix /19 total	0.20	Prefix /19 announcements	0.21	Prefix /19 withdrawals	0.72	Prefix /19 path updates	0.15
Prefix /20 total	0.88	Prefix /20 announcements	0.57	Prefix /20 withdrawals	0.29	Prefix /20 path updates	0.96
Prefix /21 total	0.68	Prefix /21 announcements	0.10	Prefix /21 withdrawals	0.34	Prefix /21 path updates	0.76
Prefix /22 total	0.96	Prefix /22 announcements	0.41	Prefix /22 withdrawals	0.12	Prefix /22 path updates	1.09
Prefix /23 total	1.19	Prefix /23 announcements	1.07	Prefix /23 withdrawals	0.58	Prefix /23 path updates	1.26
Prefix /24 total	0.94	Prefix /24 announcements	1.30	Prefix /24 withdrawals	1.42	Prefix /24 path updates	0.87
Prefix /25 total	121.74	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	143.11
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	13.39	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	15.74

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	2806.000	New Entries	193.000	Removed Entries	226.000	Updated Entries	2387.000
Address Span	2134914.000	Address Span	90880.000	Address Span	114176.000	Address Span	1929858.000
Average address span per update	760.000	Avg Span	470.000	Avg Span	505.000	Avg Span	808.000
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	1.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	1.000
Prefix /17 update rate	8.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	8.000
Prefix /18 update rate	5.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	5.000
Prefix /19 update rate	14.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	4.000	Prefix /19 path updates	9.000
Prefix /20 update rate	112.000	Prefix /20 announcements	5.000	Prefix /20 withdrawals	3.000	Prefix /20 path updates	104.000
Prefix /21 update rate	100.000	Prefix /21 announcements	1.000	Prefix /21 withdrawals	4.000	Prefix /21 path updates	95.000
Prefix /22 update rate	305.000	Prefix /22 announcements	9.000	Prefix /22 withdrawals	3.000	Prefix /22 path updates	293.000
Prefix /23 update rate	355.000	Prefix /23 announcements	22.000	Prefix /23 withdrawals	14.000	Prefix /23 path updates	319.000
Prefix /24 update rate	1635.000	Prefix /24 announcements	155.000	Prefix /24 withdrawals	198.000	Prefix /24 path updates	1282.000
Prefix /25 update rate	269.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	269.000
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	2.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	2.000

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

937

249

317

287

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

/19 Org

/19 Nxt

/19 Trn

/19 Fst

/19 Prp

/20 Tot

104

/20 Org

/20 Nxt

/20 Trn

/20 Fst

/20 Prp

/21 Tot

/21 Org

/21 Nxt

/21 Trn

/21 Fst

/21 Prp

/22 Tot

293

/22 Org

/22 Nxt

/22 Trn

123

/22 Fst

/22 Prp

/23 Tot

319

/23 Org

/23 Nxt

/23 Trn

138

/23 Fst

116

/23 Prp

/24 Tot

1282

/24 Org

/24 Nxt

503

/24 Trn

351

/24 Fst

321

/24 Prp

103

/25 Tot

269

/25 Org

/25 Nxt

/25 Trn

/25 Fst

193

/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	44	% AS's announcing span of /8	0.0006
AS's announcing span of /9	71	% AS's announcing span of /9	0.0009
AS's announcing span of /10	105	% AS's announcing span of /10	0.0014
AS's announcing span of /11	169	% AS's announcing span of /11	0.0022
AS's announcing span of /12	249	% AS's announcing span of /12	0.0033
AS's announcing span of /13	399	% AS's announcing span of /13	0.0052
AS's announcing span of /14	849	% AS's announcing span of /14	0.0111
AS's announcing span of /15	1645	% AS's announcing span of /15	0.0215
AS's announcing span of /16	1777	% AS's announcing span of /16	0.0232
AS's announcing span of /17	2426	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3770	% AS's announcing span of /18	0.0492
AS's announcing span of /19	5123	% AS's announcing span of /19	0.0669
AS's announcing span of /20	7596	% AS's announcing span of /20	0.0992
AS's announcing span of /21	10413	% AS's announcing span of /21	0.1360
AS's announcing span of /22	12795	% AS's announcing span of /22	0.1671
AS's announcing span of /23	9972	% AS's announcing span of /23	0.1302
AS's announcing span of /24	19106	% AS's announcing span of /24	0.2495
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.

˙˙˙˙˙˙˙˙ ˙˙˙˙˙˙˙˙ ˙˙˙˙˙˙˙˙

AS Connectivity Report	Data
AS Adjacency Count	129456
Average AS Connectivity Degree (258912/77229)	3.3525
Average AS Connectivity IN:OUT Degree	0.1579
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	576008	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	559653	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	386004	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	386026	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 Jun 30 21:01:09 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