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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Mon Jun 8 05:01:10 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)	1058794	Change in FIB Size	-23	Change (%)	-0.002
All BGP entries (RIB)	3158495
RIB/FIB ratio (3158495/1058794)	2.9831
Valid entries	3158495
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)	3105589504
Total address space advertised (prefix length)	0.46778000
Percentage of IPv4 space advertised (3105589504/4294967295)	72.307640
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2933
Average address span (as prefix size)	20.4818
Average prefix length	22.9561

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	537522	Specifics as % of FIB entries (537522/1058794)	50.7674
Specifics as % of address span (1097441673/3105589504)	35.3376
Specifics where AS prepended Path matches aggregate	239739	AS-P_Path-Match % (239739/537522)	44.60
AS Path matches aggregate	259611	AS-Path-Match % (259611/537522)	48.2977
AS Origin matches aggregate	408528	AS-Origin-Match % (408528/537522)	76.0021
Root Prefixes	521272
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	464170
Root Prefixes with depth 1	46778
Root Prefixes with depth 2	8472
Root Prefixes with depth 3	1421
Root Prefixes with depth 4	330
Root Prefixes with depth 5	68
Root Prefixes with depth 6	27
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	78802	ASes visible in only one AS path	47028
Origin only ASes	67297	Origin ASs announced via a single AS path	46463
Transit only ASes	609	Originating AS ATOM count	78193
Mixed ASes	10896	Originating AS ATOM compression	0.0739
Multi-Origin Prefixes	1174
ASes originating a single prefix	27713
Average FIB entries per Origin AS	13.5408	Maximum entries for an origin AS (AS7713)	3729
Average address range span for an origin AS	39716.9760	Maximum address range for an origin AS (AS749)	227729408

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	276866	Unique AS prepended Paths	294922
AS Paths used in FIB	133590	AS Paths using prepending	66845
AS paths associated with a single FIB entry	64621	AS Paths using private ASs	22
Average AS path length	5.3028	Number of Prefixes with Selected AS Prepending Paths	143915
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	143915
Average address weighted AS path length	6.5483	Maximum prepended AS Path length	70
Average entries per AS Path	3.8242	Average entries per FIB AS Path	7.9257
AS Paths per origin AS	3.5408	FIB AS Paths per origin AS	1.7085
AS PATH ATOM compression	0.1262

Prefix Length Distributions

The time trend of the distribution of BGP Table entries by address prefix length.

Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	14	% Prefix /9	0.00
Prefix count /10	39	% Prefix /10	0.00
Prefix count /11	95	% Prefix /11	0.01
Prefix count /12	298	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1191	% Prefix /14	0.11
Prefix count /15	2118	% Prefix /15	0.20
Prefix count /16	13634	% Prefix /16	1.29
Prefix count /17	8384	% Prefix /17	0.79
Prefix count /18	13461	% Prefix /18	1.27
Prefix count /19	25786	% Prefix /19	2.44
Prefix count /20	47070	% Prefix /20	4.45
Prefix count /21	53144	% Prefix /21	5.02
Prefix count /22	114255	% Prefix /22	10.79
Prefix count /23	109150	% Prefix /23	10.31
Prefix count /24	668855	% Prefix /24	63.17
Prefix count /25	695	% Prefix /25	0.07
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	0	% Prefix /27	0.00
Prefix count /28	0	% Prefix /28	0.00
Prefix count /29	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	4	% Prefix /31	0.00
Prefix count /32	1	% 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	486	% Prefix /13	0.09
Prefix count /14	1013	% Prefix /14	0.19
Prefix count /15	1622	% Prefix /15	0.31
Prefix count /16	10823	% Prefix /16	2.08
Prefix count /17	4521	% Prefix /17	0.87
Prefix count /18	7173	% Prefix /18	1.38
Prefix count /19	14942	% Prefix /19	2.87
Prefix count /20	20994	% Prefix /20	4.03
Prefix count /21	22936	% Prefix /21	4.40
Prefix count /22	60816	% Prefix /22	11.67
Prefix count /23	46339	% Prefix /23	8.89
Prefix count /24	329184	% Prefix /24	63.15
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	219157769	% Addresses at AS distance 2	5.2
Addresses at AS distance 3	1238598912	% Addresses at AS distance 3	29.5
Addresses at AS distance 4	1965758976	% Addresses at AS distance 4	46.8
Addresses at AS distance 5	592038016	% Addresses at AS distance 5	14.1
Addresses at AS distance 6	164992896	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	14294016	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7870336	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	279296	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	33024	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	512	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	1024	% 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	219162889	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1457761801	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3423520777	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4015558793	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4180551689	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4194845705	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4202716041	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4202995337	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4203028361	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4203028873	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4203029897	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4203029897	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4203031177	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4203031177	% Addresses reachable within 15 AS hops	100

ASes by AS distance	(data)	% ASes by AS hops	(data)
ASes reachable at 0 AS hops	1	% ASes reachable at 0 AS hops	0
ASes reachable at 1 AS hops	2	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	306	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6590	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	30992	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31320	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7825	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1392	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	304	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	44	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	10	% 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
ASes reachable at 15 AS hops	0	% ASes reachable at 15 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	309	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6899	Cumulative % ASes by AS hops 3	8.8
ASes reachable by 4 AS hops	37891	Cumulative % ASes by AS hops 4	48.1
ASes reachable by 5 AS hops	69211	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	77036	Cumulative % ASes by AS hops 6	97.8
ASes reachable by 7 AS hops	78428	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78732	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78776	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78786	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78790	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78794	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78798	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78802	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78802	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	1686	New Entries	244	Removed Entries	269	Updated Entries	1173
		Report		Report		Report
Address Span	1125248	Address Span	86784	Address Span	127488	Address Span	910976
Average address span per update	667	Avg Span	355	Avg Span	473	Avg Span	776
Average prefix size updated	23.67	Average prefix size	23.77	Average prefix size	23.73	Average prefix size	23.64
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /17 total	2	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	2
Prefix /18 total	13	Prefix /18 announcements	0	Prefix /18 withdrawals	1	Prefix /18 path updates	12
Prefix /19 total	8	Prefix /19 announcements	0	Prefix /19 withdrawals	2	Prefix /19 path updates	6
Prefix /20 total	58	Prefix /20 announcements	2	Prefix /20 withdrawals	2	Prefix /20 path updates	54
Prefix /21 total	29	Prefix /21 announcements	3	Prefix /21 withdrawals	3	Prefix /21 path updates	23
Prefix /22 total	96	Prefix /22 announcements	5	Prefix /22 withdrawals	13	Prefix /22 path updates	78
Prefix /23 total	145	Prefix /23 announcements	29	Prefix /23 withdrawals	14	Prefix /23 path updates	102
Prefix /24 total	1100	Prefix /24 announcements	205	Prefix /24 withdrawals	234	Prefix /24 path updates	661
Prefix /25 total	235	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	235
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	0.00	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.00
Prefix /17 total	0.15	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.22
Prefix /18 total	0.61	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.29	Prefix /18 path updates	0.80
Prefix /19 total	0.19	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.31	Prefix /19 path updates	0.21
Prefix /20 total	0.77	Prefix /20 announcements	0.18	Prefix /20 withdrawals	0.17	Prefix /20 path updates	1.04
Prefix /21 total	0.34	Prefix /21 announcements	0.24	Prefix /21 withdrawals	0.22	Prefix /21 path updates	0.39
Prefix /22 total	0.53	Prefix /22 announcements	0.19	Prefix /22 withdrawals	0.45	Prefix /22 path updates	0.62
Prefix /23 total	0.83	Prefix /23 announcements	1.15	Prefix /23 withdrawals	0.50	Prefix /23 path updates	0.84
Prefix /24 total	1.03	Prefix /24 announcements	1.33	Prefix /24 withdrawals	1.38	Prefix /24 path updates	0.89
Prefix /25 total	212.34	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	305.21
Prefix /26 total	0.00	Prefix /26 announcements	100.00	Prefix /26 withdrawals	100.00	Prefix /26 path updates	100.00
Prefix /27 total	0.00	Prefix /27 announcements	100.00	Prefix /27 withdrawals	100.00	Prefix /27 path updates	100.00
Prefix /28 total	0.00	Prefix /28 announcements	100.00	Prefix /28 withdrawals	100.00	Prefix /28 path updates	100.00
Prefix /29 total	0.00	Prefix /29 announcements	100.00	Prefix /29 withdrawals	100.00	Prefix /29 path updates	100.00
Prefix /30 total	0.00	Prefix /30 announcements	100.00	Prefix /30 withdrawals	100.00	Prefix /30 path updates	100.00
Prefix /31 total	0.00	Prefix /31 announcements	0.00	Prefix /31 withdrawals	0.00	Prefix /31 path updates	0.00
Prefix /32 total	0.00	Prefix /32 announcements	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	1686.000	New Entries	244.000	Removed Entries	269.000	Updated Entries	1173.000
Address Span	1125248.000	Address Span	86784.000	Address Span	127488.000	Address Span	910976.000
Average address span per update	667.000	Avg Span	355.000	Avg Span	473.000	Avg Span	776.000
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	0.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	0.000
Prefix /17 update rate	2.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	2.000
Prefix /18 update rate	13.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	1.000	Prefix /18 path updates	12.000
Prefix /19 update rate	8.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	2.000	Prefix /19 path updates	6.000
Prefix /20 update rate	58.000	Prefix /20 announcements	2.000	Prefix /20 withdrawals	2.000	Prefix /20 path updates	54.000
Prefix /21 update rate	29.000	Prefix /21 announcements	3.000	Prefix /21 withdrawals	3.000	Prefix /21 path updates	23.000
Prefix /22 update rate	96.000	Prefix /22 announcements	5.000	Prefix /22 withdrawals	13.000	Prefix /22 path updates	78.000
Prefix /23 update rate	145.000	Prefix /23 announcements	29.000	Prefix /23 withdrawals	14.000	Prefix /23 path updates	102.000
Prefix /24 update rate	1100.000	Prefix /24 announcements	205.000	Prefix /24 withdrawals	234.000	Prefix /24 path updates	661.000
Prefix /25 update rate	235.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	235.000
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
Total Path Changes	525	Origin Paths	64	NextHop Paths	141	Transit Paths	154	Paths	155	Paths	11
Report
/17 Tot	2	/17 Org	0	/17 Nxt	1	/17 Trn	0	/17 Fst	1	/17 Prp	0
/18 Tot	12	/18 Org	0	/18 Nxt	0	/18 Trn	12	/18 Fst	0	/18 Prp	0
/19 Tot	6	/19 Org	0	/19 Nxt	4	/19 Trn	0	/19 Fst	1	/19 Prp	1
/20 Tot	54	/20 Org	1	/20 Nxt	4	/20 Trn	13	/20 Fst	36	/20 Prp	0
/21 Tot	23	/21 Org	0	/21 Nxt	9	/21 Trn	10	/21 Fst	4	/21 Prp	0
/22 Tot	78	/22 Org	0	/22 Nxt	45	/22 Trn	20	/22 Fst	13	/22 Prp	0
/23 Tot	102	/23 Org	0	/23 Nxt	53	/23 Trn	28	/23 Fst	17	/23 Prp	4
/24 Tot	661	/24 Org	12	/24 Nxt	300	/24 Trn	208	/24 Fst	130	/24 Prp	11
/25 Tot	235	/25 Org	60	/25 Nxt	18	/25 Trn	0	/25 Fst	157	/25 Prp	0
/26 Tot	0	/26 Org	0	/26 Nxt	0	/26 Trn	0	/26 Fst	0	/26 Prp	0
/27 Tot	0	/27 Org	0	/27 Nxt	0	/27 Trn	0	/27 Fst	0	/27 Prp	0
/28 Tot	0	/28 Org	0	/28 Nxt	0	/28 Trn	0	/28 Fst	0	/28 Prp	0
/29 Tot	0	/29 Org	0	/29 Nxt	0	/29 Trn	0	/29 Fst	0	/29 Prp	0
/30 Tot	0	/30 Org	0	/30 Nxt	0	/30 Trn	0	/30 Fst	0	/30 Prp	0
/31 Tot	0	/31 Org	0	/31 Nxt	0	/31 Trn	0	/31 Fst	0	/31 Prp	0
/32 Tot	0	/32 Org	0	/32 Nxt	0	/32 Trn	0	/32 Fst	0	/32 Prp	0

AS Announcement Reports

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

AS Announcements Reports	Data Sets(txt)	Percentage Reports	Data
Originating Addresses AS Count	(data)	Originating Addresses % AS Count	(data)
AS's announcing span of /4	2	% AS's announcing span of /4	0.0000
AS's announcing span of /5	5	% AS's announcing span of /5	0.0001
AS's announcing span of /6	11	% AS's announcing span of /6	0.0001
AS's announcing span of /7	20	% AS's announcing span of /7	0.0003
AS's announcing span of /8	40	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0009
AS's announcing span of /10	102	% 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	247	% AS's announcing span of /12	0.0032
AS's announcing span of /13	390	% AS's announcing span of /13	0.0050
AS's announcing span of /14	847	% AS's announcing span of /14	0.0108
AS's announcing span of /15	1620	% AS's announcing span of /15	0.0207
AS's announcing span of /16	1745	% AS's announcing span of /16	0.0223
AS's announcing span of /17	2427	% AS's announcing span of /17	0.0311
AS's announcing span of /18	3772	% AS's announcing span of /18	0.0483
AS's announcing span of /19	5103	% AS's announcing span of /19	0.0653
AS's announcing span of /20	7588	% AS's announcing span of /20	0.0971
AS's announcing span of /21	10431	% AS's announcing span of /21	0.1335
AS's announcing span of /22	13169	% AS's announcing span of /22	0.1685
AS's announcing span of /23	10458	% AS's announcing span of /23	0.1338
AS's announcing span of /24	19901	% AS's announcing span of /24	0.2547
AS's announcing span of /25	15	% AS's announcing span of /25	0.0002
AS's announcing span of /26	0	% AS's announcing span of /26	0.0000
AS's announcing span of /27	0	% AS's announcing span of /27	0.0000
AS's announcing span of /28	0	% AS's announcing span of /28	0.0000
AS's announcing span of /29	1	% AS's announcing span of /29	0.0000
AS's announcing span of /30	0	% AS's announcing span of /30	0.0000
AS's announcing span of /31	0	% AS's announcing span of /31	0.0000
AS's announcing span of /32	0	% AS's announcing span of /32	0.0000

AS Connectivity Reports

This set of reports lists all visible AS's using a number of ordering criteria. The reports order AS's by the total span of addresses originated by an AS, the total span of addresses reachable via an AS, and the totspan of originating plus transit addresses via each AS. Each AS in an AS path has an adjacent AS closer to the sample point, and an adjacent AS further from the sample point. The number of such pairwise adjacencies is reported for each AS. The average AS Connectivity Degree is the average number of adjacent AS's for an AS.

h h h

AS Connectivity Report	Data
AS Adjacency Count	128746
Average AS Connectivity Degree (257492/78802)	3.2676
Average AS Connectivity IN:OUT Degree	0.1515
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	597862	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	583923	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	409152	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	409167	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 8 05:01:10 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