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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Wed Jan 28 12:01:10 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)	1054925	Change in FIB Size	24	Change (%)	0.002
All BGP entries (RIB)	3127226
RIB/FIB ratio (3127226/1054925)	2.9644
Valid entries	3127226
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)	3108509312
Total address space advertised (prefix length)	0.46642425
Percentage of IPv4 space advertised (3108509312/4294967295)	72.375622
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2947
Average address span (as prefix size)	20.4755
Average prefix length	22.9441

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	547620	Specifics as % of FIB entries (547620/1054925)	51.9108
Specifics as % of address span (1116094974/3108509312)	35.9045
Specifics where AS prepended Path matches aggregate	247273	AS-P_Path-Match % (247273/547620)	45.15
AS Path matches aggregate	266524	AS-Path-Match % (266524/547620)	48.6695
AS Origin matches aggregate	420270	AS-Origin-Match % (420270/547620)	76.7448
Root Prefixes	507305
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	448885
Root Prefixes with depth 1	47189
Root Prefixes with depth 2	9162
Root Prefixes with depth 3	1579
Root Prefixes with depth 4	379
Root Prefixes with depth 5	77
Root Prefixes with depth 6	27
Root Prefixes with depth 7	6
Root Prefixes with depth 8	1

AS Numbers

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

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique ASes	78074	ASes visible in only one AS path	46804
Origin only ASes	66683	Origin ASs announced via a single AS path	46265
Transit only ASes	584	Originating AS ATOM count	77490
Mixed ASes	10807	Originating AS ATOM compression	0.0735
Multi-Origin Prefixes	2212
ASes originating a single prefix	27054
Average FIB entries per Origin AS	13.6137	Maximum entries for an origin AS (AS7713)	3731
Average address range span for an origin AS	40114.9737	Maximum address range for an origin AS (AS749)	227733504

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	266373	Unique AS prepended Paths	283461
AS Paths used in FIB	130823	AS Paths using prepending	63868
AS paths associated with a single FIB entry	62316	AS Paths using private ASs	21
Average AS path length	5.1930	Number of Prefixes with Selected AS Prepending Paths	139313
Maximum AS Path length	15	Number of Prefixes with AS Prepending Paths	139313
Average address weighted AS path length	6.5332	Maximum prepended AS Path length	210
Average entries per AS Path	3.9603	Average entries per FIB AS Path	8.0638
AS Paths per origin AS	3.4375	FIB AS Paths per origin AS	1.6883
AS PATH ATOM compression	0.1240

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	1203	% Prefix /14	0.11
Prefix count /15	2106	% Prefix /15	0.20
Prefix count /16	13794	% Prefix /16	1.31
Prefix count /17	8435	% Prefix /17	0.80
Prefix count /18	13801	% Prefix /18	1.31
Prefix count /19	25434	% Prefix /19	2.41
Prefix count /20	47206	% Prefix /20	4.47
Prefix count /21	53786	% Prefix /21	5.10
Prefix count /22	115453	% Prefix /22	10.94
Prefix count /23	110948	% Prefix /23	10.52
Prefix count /24	661010	% Prefix /24	62.66
Prefix count /25	692	% 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	1	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	6	% Prefix /32	0.00

Root Prefix Length Distributions

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

Root Prefix Length Reports (plots)	Data Sets(txt)	Percentage Reports (plots)	Data Sets(txt)
Root Prefix Count	(data)	% Prefix distribution	(data)
Prefix count /8	16	% Prefix /8	0.00
Prefix count /9	9	% Prefix /9	0.00
Prefix count /10	40	% Prefix /10	0.01
Prefix count /11	88	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.05
Prefix count /13	486	% Prefix /13	0.10
Prefix count /14	1027	% Prefix /14	0.20
Prefix count /15	1633	% Prefix /15	0.32
Prefix count /16	10938	% Prefix /16	2.16
Prefix count /17	4469	% Prefix /17	0.88
Prefix count /18	7038	% Prefix /18	1.39
Prefix count /19	14886	% Prefix /19	2.93
Prefix count /20	20489	% Prefix /20	4.04
Prefix count /21	22836	% Prefix /21	4.50
Prefix count /22	60263	% Prefix /22	11.88
Prefix count /23	45128	% Prefix /23	8.90
Prefix count /24	317686	% Prefix /24	62.62
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	235938910	% Addresses at AS distance 2	5.6
Addresses at AS distance 3	1299403776	% Addresses at AS distance 3	30.8
Addresses at AS distance 4	1951688480	% Addresses at AS distance 4	46.2
Addresses at AS distance 5	551955200	% Addresses at AS distance 5	13.1
Addresses at AS distance 6	162733056	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	13603584	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	8584192	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	421632	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	22784	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	66048	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	0	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	180224	% Addresses at AS distance 13	0.0
Addresses at AS distance 14	1280	% Addresses at AS distance 14	0.0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	256	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	5120	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	235944030	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1535347806	% Addresses reachable within 3 AS hops	36
Addresses reachable within 4 AS hops	3487036286	% Addresses reachable within 4 AS hops	82
Addresses reachable within 5 AS hops	4038991486	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4201724542	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4215328126	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4223912318	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4224333950	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4224356734	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4224422782	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4224422782	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4224603006	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4224604286	% 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	376	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9186	% ASes reachable at 3 AS hops	11
ASes reachable at 4 AS hops	33014	% ASes reachable at 4 AS hops	42
ASes reachable at 5 AS hops	27785	% ASes reachable at 5 AS hops	35
ASes reachable at 6 AS hops	6081	% ASes reachable at 6 AS hops	7
ASes reachable at 7 AS hops	1243	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	314	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	46	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	8	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	6	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	4	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	4	% ASes reachable at 13 AS hops	0
ASes reachable at 14 AS hops	4	% ASes reachable at 14 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	379	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9565	Cumulative % ASes by AS hops 3	12.3
ASes reachable by 4 AS hops	42579	Cumulative % ASes by AS hops 4	54.5
ASes reachable by 5 AS hops	70364	Cumulative % ASes by AS hops 5	90.1
ASes reachable by 6 AS hops	76445	Cumulative % ASes by AS hops 6	97.9
ASes reachable by 7 AS hops	77688	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78002	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78048	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78056	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78062	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78066	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78070	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78074	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	3728	New Entries	344	Removed Entries	318	Updated Entries	3066
		Report		Report		Report
Address Span	3067136	Address Span	286976	Address Span	154112	Address Span	2626048
Average address span per update	822	Avg Span	834	Avg Span	484	Avg Span	856
Average prefix size updated	23.57	Average prefix size	23.63	Average prefix size	23.47	Average prefix size	23.57
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	8	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	8
Prefix /17 total	12	Prefix /17 announcements	4	Prefix /17 withdrawals	0	Prefix /17 path updates	8
Prefix /18 total	10	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	10
Prefix /19 total	50	Prefix /19 announcements	1	Prefix /19 withdrawals	1	Prefix /19 path updates	48
Prefix /20 total	59	Prefix /20 announcements	11	Prefix /20 withdrawals	1	Prefix /20 path updates	47
Prefix /21 total	71	Prefix /21 announcements	4	Prefix /21 withdrawals	13	Prefix /21 path updates	54
Prefix /22 total	308	Prefix /22 announcements	8	Prefix /22 withdrawals	28	Prefix /22 path updates	272
Prefix /23 total	319	Prefix /23 announcements	21	Prefix /23 withdrawals	63	Prefix /23 path updates	235
Prefix /24 total	2659	Prefix /24 announcements	295	Prefix /24 withdrawals	212	Prefix /24 path updates	2152
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	0.16	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.20
Prefix /17 total	0.40	Prefix /17 announcements	1.45	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.33
Prefix /18 total	0.21	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.25
Prefix /19 total	0.56	Prefix /19 announcements	0.12	Prefix /19 withdrawals	0.13	Prefix /19 path updates	0.65
Prefix /20 total	0.35	Prefix /20 announcements	0.71	Prefix /20 withdrawals	0.07	Prefix /20 path updates	0.34
Prefix /21 total	0.37	Prefix /21 announcements	0.23	Prefix /21 withdrawals	0.80	Prefix /21 path updates	0.35
Prefix /22 total	0.75	Prefix /22 announcements	0.21	Prefix /22 withdrawals	0.80	Prefix /22 path updates	0.81
Prefix /23 total	0.81	Prefix /23 announcements	0.58	Prefix /23 withdrawals	1.88	Prefix /23 path updates	0.73
Prefix /24 total	1.14	Prefix /24 announcements	1.37	Prefix /24 withdrawals	1.06	Prefix /24 path updates	1.12
Prefix /25 total	94.87	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	115.35
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	3728.000	New Entries	344.000	Removed Entries	318.000	Updated Entries	3066.000
Address Span	3067136.000	Address Span	286976.000	Address Span	154112.000	Address Span	2626048.000
Average address span per update	822.000	Avg Span	834.000	Avg Span	484.000	Avg Span	856.000
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	8.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	8.000
Prefix /17 update rate	12.000	Prefix /17 announcements	4.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	8.000
Prefix /18 update rate	10.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	10.000
Prefix /19 update rate	50.000	Prefix /19 announcements	1.000	Prefix /19 withdrawals	1.000	Prefix /19 path updates	48.000
Prefix /20 update rate	59.000	Prefix /20 announcements	11.000	Prefix /20 withdrawals	1.000	Prefix /20 path updates	47.000
Prefix /21 update rate	71.000	Prefix /21 announcements	4.000	Prefix /21 withdrawals	13.000	Prefix /21 path updates	54.000
Prefix /22 update rate	308.000	Prefix /22 announcements	8.000	Prefix /22 withdrawals	28.000	Prefix /22 path updates	272.000
Prefix /23 update rate	319.000	Prefix /23 announcements	21.000	Prefix /23 withdrawals	63.000	Prefix /23 path updates	235.000
Prefix /24 update rate	2659.000	Prefix /24 announcements	295.000	Prefix /24 withdrawals	212.000	Prefix /24 path updates	2152.000
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
Total Path Changes	1006	Origin Paths	62	NextHop Paths	349	Transit Paths	302	Paths	270	Paths	23
Report
/16 Tot	8	/16 Org	0	/16 Nxt	5	/16 Trn	0	/16 Fst	3	/16 Prp	0
/17 Tot	8	/17 Org	0	/17 Nxt	6	/17 Trn	1	/17 Fst	1	/17 Prp	0
/18 Tot	10	/18 Org	0	/18 Nxt	9	/18 Trn	0	/18 Fst	1	/18 Prp	0
/19 Tot	48	/19 Org	0	/19 Nxt	26	/19 Trn	19	/19 Fst	3	/19 Prp	0
/20 Tot	47	/20 Org	0	/20 Nxt	27	/20 Trn	3	/20 Fst	17	/20 Prp	0
/21 Tot	54	/21 Org	1	/21 Nxt	29	/21 Trn	12	/21 Fst	12	/21 Prp	0
/22 Tot	272	/22 Org	2	/22 Nxt	80	/22 Trn	25	/22 Fst	161	/22 Prp	4
/23 Tot	235	/23 Org	0	/23 Nxt	93	/23 Trn	74	/23 Fst	59	/23 Prp	9
/24 Tot	2152	/24 Org	6	/24 Nxt	922	/24 Trn	436	/24 Fst	744	/24 Prp	44
/25 Tot	232	/25 Org	56	/25 Nxt	19	/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	41	% AS's announcing span of /8	0.0005
AS's announcing span of /9	75	% AS's announcing span of /9	0.0010
AS's announcing span of /10	104	% AS's announcing span of /10	0.0013
AS's announcing span of /11	174	% AS's announcing span of /11	0.0022
AS's announcing span of /12	240	% AS's announcing span of /12	0.0031
AS's announcing span of /13	403	% AS's announcing span of /13	0.0052
AS's announcing span of /14	847	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1634	% AS's announcing span of /15	0.0211
AS's announcing span of /16	1768	% AS's announcing span of /16	0.0228
AS's announcing span of /17	2450	% AS's announcing span of /17	0.0316
AS's announcing span of /18	3774	% AS's announcing span of /18	0.0487
AS's announcing span of /19	5161	% AS's announcing span of /19	0.0666
AS's announcing span of /20	7640	% AS's announcing span of /20	0.0987
AS's announcing span of /21	10469	% AS's announcing span of /21	0.1352
AS's announcing span of /22	12891	% AS's announcing span of /22	0.1665
AS's announcing span of /23	10148	% AS's announcing span of /23	0.1311
AS's announcing span of /24	19563	% AS's announcing span of /24	0.2526
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.

AS Connectivity Report	Data
AS Adjacency Count	129520
Average AS Connectivity Degree (259040/78074)	3.3179
Average AS Connectivity IN:OUT Degree	0.1560
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	580947	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	566526	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	399349	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	399370	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 Wed Jan 28 12:01:10 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