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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Jan 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)	1051227	Change in FIB Size	-84	Change (%)	-0.008
All BGP entries (RIB)	3115898
RIB/FIB ratio (3115898/1051227)	2.9641
Valid entries	3115898
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)	3106929536
Total address space advertised (prefix length)	0.46715762
Percentage of IPv4 space advertised (3106929536/4294967295)	72.338840
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2956
Average address span (as prefix size)	20.4711
Average prefix length	22.9427

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	545071	Specifics as % of FIB entries (545071/1051227)	51.8509
Specifics as % of address span (1112303494/3106929536)	35.8007
Specifics where AS prepended Path matches aggregate	226915	AS-P_Path-Match % (226915/545071)	41.63
AS Path matches aggregate	244639	AS-Path-Match % (244639/545071)	44.8820
AS Origin matches aggregate	418577	AS-Origin-Match % (418577/545071)	76.7931
Root Prefixes	506156
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	447744
Root Prefixes with depth 1	47209
Root Prefixes with depth 2	9138
Root Prefixes with depth 3	1582
Root Prefixes with depth 4	376
Root Prefixes with depth 5	74
Root Prefixes with depth 6	25
Root Prefixes with depth 7	7
Root Prefixes with depth 8	1

AS Numbers

The time trend of the number of unique AS numbers advertised within the BGP table. The associated metrics characterise AS's into origin only, transit only, or mixed (origin and transit), and also look at the trends of advertised address space as related to the number of ASes.

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique ASes	77987	ASes visible in only one AS path	45428
Origin only ASes	66622	Origin ASs announced via a single AS path	44904
Transit only ASes	590	Originating AS ATOM count	77397
Mixed ASes	10775	Originating AS ATOM compression	0.0736
Multi-Origin Prefixes	2232
ASes originating a single prefix	26989
Average FIB entries per Origin AS	13.5823	Maximum entries for an origin AS (AS7713)	3733
Average address range span for an origin AS	40142.7644	Maximum address range for an origin AS (AS749)	227734016

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	265611	Unique AS prepended Paths	282555
AS Paths used in FIB	137174	AS Paths using prepending	64129
AS paths associated with a single FIB entry	66417	AS Paths using private ASs	21
Average AS path length	5.1982	Number of Prefixes with Selected AS Prepending Paths	137232
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	137232
Average address weighted AS path length	6.5313	Maximum prepended AS Path length	210
Average entries per AS Path	3.9578	Average entries per FIB AS Path	7.6635
AS Paths per origin AS	3.4318	FIB AS Paths per origin AS	1.7723
AS PATH ATOM compression	0.1305

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	93	% Prefix /11	0.01
Prefix count /12	302	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1204	% Prefix /14	0.11
Prefix count /15	2107	% Prefix /15	0.20
Prefix count /16	13772	% Prefix /16	1.31
Prefix count /17	8408	% Prefix /17	0.80
Prefix count /18	13751	% Prefix /18	1.31
Prefix count /19	25403	% Prefix /19	2.42
Prefix count /20	46854	% Prefix /20	4.46
Prefix count /21	53741	% Prefix /21	5.11
Prefix count /22	115449	% Prefix /22	10.98
Prefix count /23	110890	% Prefix /23	10.55
Prefix count /24	657895	% Prefix /24	62.58
Prefix count /25	695	% Prefix /25	0.07
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	2	% 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	88	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1028	% Prefix /14	0.20
Prefix count /15	1630	% Prefix /15	0.32
Prefix count /16	10928	% Prefix /16	2.16
Prefix count /17	4466	% Prefix /17	0.88
Prefix count /18	6998	% Prefix /18	1.38
Prefix count /19	14905	% Prefix /19	2.94
Prefix count /20	20524	% Prefix /20	4.05
Prefix count /21	22833	% Prefix /21	4.51
Prefix count /22	60254	% Prefix /22	11.90
Prefix count /23	45001	% Prefix /23	8.89
Prefix count /24	316677	% Prefix /24	62.57
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	235940710	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1295918848	% Addresses at AS distance 3	30.7
Addresses at AS distance 4	1942109344	% Addresses at AS distance 4	46.0
Addresses at AS distance 5	558749824	% Addresses at AS distance 5	13.2
Addresses at AS distance 6	163457152	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	14210048	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8508160	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	249088	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	82176	% 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	0	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	0	% Addresses at AS distance 13	0.0
Addresses at AS distance 14	1280	% Addresses at AS distance 14	0.0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	256	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	5120	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	235945830	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1531864678	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3473974022	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4032723846	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4196180998	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4210391046	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4218899206	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4219148294	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4219230470	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4219231750	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4219231750	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4219231750	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4219233030	% 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	377	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9139	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	32955	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27835	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6073	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1210	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	312	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	58	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	9	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	4	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	4	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	4	% ASes reachable at 13 AS hops	0
ASes reachable at 14 AS hops	4	% ASes reachable at 14 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	380	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9519	Cumulative % ASes by AS hops 3	12.2
ASes reachable by 4 AS hops	42474	Cumulative % ASes by AS hops 4	54.5
ASes reachable by 5 AS hops	70309	Cumulative % ASes by AS hops 5	90.2
ASes reachable by 6 AS hops	76382	Cumulative % ASes by AS hops 6	97.9
ASes reachable by 7 AS hops	77592	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	77904	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77962	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77971	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77975	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77979	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	77983	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	77987	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	2559	New Entries	220	Removed Entries	310	Updated Entries	2029
		Report		Report		Report
Address Span	1806464	Address Span	150400	Address Span	184832	Address Span	1471232
Average address span per update	705	Avg Span	683	Avg Span	596	Avg Span	725
Average prefix size updated	23.71	Average prefix size	23.59	Average prefix size	23.64	Average prefix size	23.74
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	4	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	4
Prefix /17 total	4	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	4
Prefix /18 total	16	Prefix /18 announcements	4	Prefix /18 withdrawals	2	Prefix /18 path updates	10
Prefix /19 total	23	Prefix /19 announcements	0	Prefix /19 withdrawals	3	Prefix /19 path updates	20
Prefix /20 total	26	Prefix /20 announcements	2	Prefix /20 withdrawals	7	Prefix /20 path updates	17
Prefix /21 total	68	Prefix /21 announcements	4	Prefix /21 withdrawals	5	Prefix /21 path updates	59
Prefix /22 total	112	Prefix /22 announcements	10	Prefix /22 withdrawals	12	Prefix /22 path updates	90
Prefix /23 total	164	Prefix /23 announcements	28	Prefix /23 withdrawals	17	Prefix /23 path updates	119
Prefix /24 total	1907	Prefix /24 announcements	171	Prefix /24 withdrawals	264	Prefix /24 path updates	1472
Prefix /25 total	235	Prefix /25 announcements	1	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	0.12	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.15
Prefix /17 total	0.20	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.25
Prefix /18 total	0.48	Prefix /18 announcements	1.39	Prefix /18 withdrawals	0.49	Prefix /18 path updates	0.38
Prefix /19 total	0.37	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.40	Prefix /19 path updates	0.41
Prefix /20 total	0.23	Prefix /20 announcements	0.20	Prefix /20 withdrawals	0.51	Prefix /20 path updates	0.19
Prefix /21 total	0.52	Prefix /21 announcements	0.36	Prefix /21 withdrawals	0.32	Prefix /21 path updates	0.57
Prefix /22 total	0.40	Prefix /22 announcements	0.41	Prefix /22 withdrawals	0.35	Prefix /22 path updates	0.40
Prefix /23 total	0.61	Prefix /23 announcements	1.21	Prefix /23 withdrawals	0.52	Prefix /23 path updates	0.56
Prefix /24 total	1.19	Prefix /24 announcements	1.24	Prefix /24 withdrawals	1.36	Prefix /24 path updates	1.16
Prefix /25 total	138.90	Prefix /25 announcements	6.88	Prefix /25 withdrawals	0.00	Prefix /25 path updates	174.44
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	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	2558.289	New Entries	219.939	Removed Entries	309.914	Updated Entries	2028.437
Address Span	1805962.375	Address Span	150358.234	Address Span	184780.672	Address Span	1470823.500
Average address span per update	704.804	Avg Span	682.810	Avg Span	595.834	Avg Span	724.799
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	3.999	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	3.999
Prefix /17 update rate	3.999	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	3.999
Prefix /18 update rate	15.996	Prefix /18 announcements	3.999	Prefix /18 withdrawals	1.999	Prefix /18 path updates	9.997
Prefix /19 update rate	22.994	Prefix /19 announcements	0.000	Prefix /19 withdrawals	2.999	Prefix /19 path updates	19.994
Prefix /20 update rate	25.993	Prefix /20 announcements	1.999	Prefix /20 withdrawals	6.998	Prefix /20 path updates	16.995
Prefix /21 update rate	67.981	Prefix /21 announcements	3.999	Prefix /21 withdrawals	4.999	Prefix /21 path updates	58.984
Prefix /22 update rate	111.969	Prefix /22 announcements	9.997	Prefix /22 withdrawals	11.997	Prefix /22 path updates	89.975
Prefix /23 update rate	163.954	Prefix /23 announcements	27.992	Prefix /23 withdrawals	16.995	Prefix /23 path updates	118.967
Prefix /24 update rate	1906.470	Prefix /24 announcements	170.953	Prefix /24 withdrawals	263.927	Prefix /24 path updates	1471.591
Prefix /25 update rate	234.935	Prefix /25 announcements	1.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	233.935
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	854	Origin Paths	68	NextHop Paths	242	Transit Paths	232	Paths	289	Paths	23
Report
/16 Tot	4	/16 Org	1	/16 Nxt	3	/16 Trn	0	/16 Fst	0	/16 Prp	0
/17 Tot	4	/17 Org	0	/17 Nxt	3	/17 Trn	1	/17 Fst	0	/17 Prp	0
/18 Tot	10	/18 Org	0	/18 Nxt	10	/18 Trn	0	/18 Fst	0	/18 Prp	0
/19 Tot	20	/19 Org	0	/19 Nxt	10	/19 Trn	6	/19 Fst	4	/19 Prp	0
/20 Tot	17	/20 Org	0	/20 Nxt	11	/20 Trn	2	/20 Fst	4	/20 Prp	0
/21 Tot	59	/21 Org	1	/21 Nxt	21	/21 Trn	6	/21 Fst	21	/21 Prp	10
/22 Tot	90	/22 Org	1	/22 Nxt	45	/22 Trn	19	/22 Fst	14	/22 Prp	11
/23 Tot	119	/23 Org	0	/23 Nxt	54	/23 Trn	31	/23 Fst	31	/23 Prp	3
/24 Tot	1472	/24 Org	14	/24 Nxt	677	/24 Trn	460	/24 Fst	272	/24 Prp	49
/25 Tot	234	/25 Org	59	/25 Nxt	17	/25 Trn	0	/25 Fst	158	/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	41	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0010
AS's announcing span of /10	103	% AS's announcing span of /10	0.0013
AS's announcing span of /11	175	% AS's announcing span of /11	0.0023
AS's announcing span of /12	241	% AS's announcing span of /12	0.0031
AS's announcing span of /13	402	% AS's announcing span of /13	0.0052
AS's announcing span of /14	847	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1632	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1763	% AS's announcing span of /16	0.0228
AS's announcing span of /17	2448	% AS's announcing span of /17	0.0317
AS's announcing span of /18	3769	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5167	% AS's announcing span of /19	0.0668
AS's announcing span of /20	7631	% AS's announcing span of /20	0.0987
AS's announcing span of /21	10446	% AS's announcing span of /21	0.1351
AS's announcing span of /22	12900	% AS's announcing span of /22	0.1668
AS's announcing span of /23	10175	% AS's announcing span of /23	0.1316
AS's announcing span of /24	19472	% AS's announcing span of /24	0.2518
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	129489
Average AS Connectivity Degree (258978/77987)	3.3208
Average AS Connectivity IN:OUT Degree	0.1555
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	602834	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	589800	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	398684	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	398712	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 Jan 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