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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Jun 11 20:01:10 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)	1061230	Change in FIB Size	130	Change (%)	0.012
All BGP entries (RIB)	3165581
RIB/FIB ratio (3165581/1061230)	2.9829
Valid entries	3165581
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)	3121341184
Total address space advertised (prefix length)	0.46048108
Percentage of IPv4 space advertised (3121341184/4294967295)	72.674388
Total address space advertised - corrected to 19 /8s	(data)
Average address span	2941
Average address span (as prefix size)	20.4779
Average prefix length	22.9570

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	538552	Specifics as % of FIB entries (538552/1061230)	50.7479
Specifics as % of address span (1097858826/3121341184)	35.1727
Specifics where AS prepended Path matches aggregate	255599	AS-P_Path-Match % (255599/538552)	47.46
AS Path matches aggregate	276203	AS-Path-Match % (276203/538552)	51.2862
AS Origin matches aggregate	409268	AS-Origin-Match % (409268/538552)	75.9941
Root Prefixes	522678
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	465514
Root Prefixes with depth 1	46845
Root Prefixes with depth 2	8462
Root Prefixes with depth 3	1426
Root Prefixes with depth 4	331
Root Prefixes with depth 5	68
Root Prefixes with depth 6	26
Root Prefixes with depth 7	5
Root Prefixes with depth 8	1

AS Numbers

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

AS Reports (plots)	Data Sets(txt)	Additional Reports (plots)	Data Sets(txt)
Unique ASes	78851	ASes visible in only one AS path	48137
Origin only ASes	67327	Origin ASs announced via a single AS path	47560
Transit only ASes	613	Originating AS ATOM count	78238
Mixed ASes	10911	Originating AS ATOM compression	0.0737
Multi-Origin Prefixes	1182
ASes originating a single prefix	27757
Average FIB entries per Origin AS	13.5641	Maximum entries for an origin AS (AS7713)	3731
Average address range span for an origin AS	39895.4624	Maximum address range for an origin AS (AS749)	227729152

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	270420	Unique AS prepended Paths	288607
AS Paths used in FIB	129550	AS Paths using prepending	66399
AS paths associated with a single FIB entry	61988	AS Paths using private ASs	18
Average AS path length	5.3050	Number of Prefixes with Selected AS Prepending Paths	144352
Maximum AS Path length	16	Number of Prefixes with AS Prepending Paths	144352
Average address weighted AS path length	6.5337	Maximum prepended AS Path length	70
Average entries per AS Path	3.9244	Average entries per FIB AS Path	8.1917
AS Paths per origin AS	3.4564	FIB AS Paths per origin AS	1.6558
AS PATH ATOM compression	0.1221

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	97	% Prefix /11	0.01
Prefix count /12	299	% Prefix /12	0.03
Prefix count /13	589	% Prefix /13	0.06
Prefix count /14	1192	% Prefix /14	0.11
Prefix count /15	2127	% Prefix /15	0.20
Prefix count /16	13716	% Prefix /16	1.29
Prefix count /17	8397	% Prefix /17	0.79
Prefix count /18	13470	% Prefix /18	1.27
Prefix count /19	25797	% Prefix /19	2.43
Prefix count /20	47087	% Prefix /20	4.44
Prefix count /21	53194	% Prefix /21	5.01
Prefix count /22	114278	% Prefix /22	10.77
Prefix count /23	109398	% Prefix /23	10.31
Prefix count /24	670818	% Prefix /24	63.21
Prefix count /25	696	% 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	2	% 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	92	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.05
Prefix count /13	491	% Prefix /13	0.09
Prefix count /14	1014	% Prefix /14	0.19
Prefix count /15	1632	% Prefix /15	0.31
Prefix count /16	10908	% Prefix /16	2.09
Prefix count /17	4527	% Prefix /17	0.87
Prefix count /18	7183	% Prefix /18	1.37
Prefix count /19	14945	% Prefix /19	2.86
Prefix count /20	20993	% Prefix /20	4.02
Prefix count /21	22955	% Prefix /21	4.39
Prefix count /22	60794	% Prefix /22	11.63
Prefix count /23	46406	% Prefix /23	8.88
Prefix count /24	330404	% Prefix /24	63.21
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	234044426	% Addresses at AS distance 2	5.5
Addresses at AS distance 3	1237292544	% Addresses at AS distance 3	29.3
Addresses at AS distance 4	1964434816	% Addresses at AS distance 4	46.6
Addresses at AS distance 5	594784384	% Addresses at AS distance 5	14.1
Addresses at AS distance 6	166062208	% Addresses at AS distance 6	3.9
Addresses at AS distance 7	14405632	% Addresses at AS distance 7	0.3
Addresses at AS distance 8	7865728	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	269824	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	32512	% 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	234049546	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1471342090	% Addresses reachable within 3 AS hops	34
Addresses reachable within 4 AS hops	3435776906	% Addresses reachable within 4 AS hops	81
Addresses reachable within 5 AS hops	4030561290	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4196623498	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4211029130	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4218894858	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4219164682	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4219197194	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4219197706	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4219198730	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4219198730	% Addresses reachable within 13 AS hops	99
Addresses reachable within 14 AS hops	4219200010	% Addresses reachable within 14 AS hops	100
Addresses reachable within 15 AS hops	4219200010	% 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	305	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	6592	% ASes reachable at 3 AS hops	8
ASes reachable at 4 AS hops	30868	% ASes reachable at 4 AS hops	39
ASes reachable at 5 AS hops	31432	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	7873	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1398	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	306	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	47	% 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	5	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	4	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	4	% ASes reachable at 13 AS hops	0
ASes reachable at 14 AS hops	4	% ASes reachable at 14 AS hops	0
ASes reachable at 15 AS hops	0	% ASes reachable at 15 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	308	Cumulative % ASes by AS hops 2	0.4
ASes reachable by 3 AS hops	6900	Cumulative % ASes by AS hops 3	8.8
ASes reachable by 4 AS hops	37768	Cumulative % ASes by AS hops 4	47.9
ASes reachable by 5 AS hops	69200	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	77073	Cumulative % ASes by AS hops 6	97.7
ASes reachable by 7 AS hops	78471	Cumulative % ASes by AS hops 7	99.5
ASes reachable by 8 AS hops	78777	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	78824	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	78834	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	78839	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	78843	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	78847	Cumulative % ASes by AS hops 13	100.0
ASes reachable by 14 AS hops	78851	Cumulative % ASes by AS hops 14	100.0
ASes reachable by 15 AS hops	78851	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	2658	New Entries	382	Removed Entries	243	Updated Entries	2033
		Report		Report		Report
Address Span	1752448	Address Span	116480	Address Span	74496	Address Span	1561472
Average address span per update	659	Avg Span	304	Avg Span	306	Avg Span	768
Average prefix size updated	23.48	Average prefix size	23.85	Average prefix size	23.88	Average prefix size	23.36
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /17 total	1	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	1
Prefix /18 total	0	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	0
Prefix /19 total	22	Prefix /19 announcements	0	Prefix /19 withdrawals	0	Prefix /19 path updates	22
Prefix /20 total	115	Prefix /20 announcements	0	Prefix /20 withdrawals	1	Prefix /20 path updates	114
Prefix /21 total	122	Prefix /21 announcements	1	Prefix /21 withdrawals	1	Prefix /21 path updates	120
Prefix /22 total	238	Prefix /22 announcements	12	Prefix /22 withdrawals	3	Prefix /22 path updates	223
Prefix /23 total	203	Prefix /23 announcements	30	Prefix /23 withdrawals	17	Prefix /23 path updates	156
Prefix /24 total	1722	Prefix /24 announcements	339	Prefix /24 withdrawals	221	Prefix /24 path updates	1162
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	0.05	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.06
Prefix /18 total	0.00	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.00
Prefix /19 total	0.34	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.45
Prefix /20 total	0.98	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.09	Prefix /20 path updates	1.26
Prefix /21 total	0.92	Prefix /21 announcements	0.05	Prefix /21 withdrawals	0.08	Prefix /21 path updates	1.18
Prefix /22 total	0.83	Prefix /22 announcements	0.29	Prefix /22 withdrawals	0.11	Prefix /22 path updates	1.02
Prefix /23 total	0.74	Prefix /23 announcements	0.76	Prefix /23 withdrawals	0.68	Prefix /23 path updates	0.74
Prefix /24 total	1.02	Prefix /24 announcements	1.40	Prefix /24 withdrawals	1.44	Prefix /24 path updates	0.90
Prefix /25 total	134.81	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	176.25
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	2658.000	New Entries	382.000	Removed Entries	243.000	Updated Entries	2033.000
Address Span	1752448.000	Address Span	116480.000	Address Span	74496.000	Address Span	1561472.000
Average address span per update	659.000	Avg Span	304.000	Avg Span	306.000	Avg Span	768.000
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	1.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	1.000
Prefix /18 update rate	0.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	0.000
Prefix /19 update rate	22.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	22.000
Prefix /20 update rate	115.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	1.000	Prefix /20 path updates	114.000
Prefix /21 update rate	122.000	Prefix /21 announcements	1.000	Prefix /21 withdrawals	1.000	Prefix /21 path updates	120.000
Prefix /22 update rate	238.000	Prefix /22 announcements	12.000	Prefix /22 withdrawals	3.000	Prefix /22 path updates	223.000
Prefix /23 update rate	203.000	Prefix /23 announcements	30.000	Prefix /23 withdrawals	17.000	Prefix /23 path updates	156.000
Prefix /24 update rate	1722.000	Prefix /24 announcements	339.000	Prefix /24 withdrawals	221.000	Prefix /24 path updates	1162.000
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	726	Origin Paths	71	NextHop Paths	232	Transit Paths	242	Paths	165	Paths	16
Report
/17 Tot	1	/17 Org	0	/17 Nxt	0	/17 Trn	1	/17 Fst	0	/17 Prp	0
/18 Tot	0	/18 Org	0	/18 Nxt	0	/18 Trn	0	/18 Fst	0	/18 Prp	0
/19 Tot	22	/19 Org	0	/19 Nxt	7	/19 Trn	1	/19 Fst	13	/19 Prp	1
/20 Tot	114	/20 Org	0	/20 Nxt	11	/20 Trn	18	/20 Fst	57	/20 Prp	28
/21 Tot	120	/21 Org	0	/21 Nxt	44	/21 Trn	54	/21 Fst	17	/21 Prp	5
/22 Tot	223	/22 Org	0	/22 Nxt	49	/22 Trn	78	/22 Fst	89	/22 Prp	7
/23 Tot	156	/23 Org	1	/23 Nxt	42	/23 Trn	40	/23 Fst	64	/23 Prp	9
/24 Tot	1162	/24 Org	13	/24 Nxt	400	/24 Trn	350	/24 Fst	385	/24 Prp	14
/25 Tot	235	/25 Org	60	/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	6	% AS's announcing span of /5	0.0001
AS's announcing span of /6	10	% AS's announcing span of /6	0.0001
AS's announcing span of /7	20	% AS's announcing span of /7	0.0003
AS's announcing span of /8	40	% AS's announcing span of /8	0.0005
AS's announcing span of /9	74	% AS's announcing span of /9	0.0009
AS's announcing span of /10	103	% AS's announcing span of /10	0.0013
AS's announcing span of /11	172	% AS's announcing span of /11	0.0022
AS's announcing span of /12	242	% AS's announcing span of /12	0.0031
AS's announcing span of /13	396	% AS's announcing span of /13	0.0051
AS's announcing span of /14	840	% AS's announcing span of /14	0.0107
AS's announcing span of /15	1631	% AS's announcing span of /15	0.0209
AS's announcing span of /16	1740	% AS's announcing span of /16	0.0223
AS's announcing span of /17	2435	% AS's announcing span of /17	0.0311
AS's announcing span of /18	3780	% AS's announcing span of /18	0.0483
AS's announcing span of /19	5109	% AS's announcing span of /19	0.0653
AS's announcing span of /20	7564	% AS's announcing span of /20	0.0967
AS's announcing span of /21	10413	% AS's announcing span of /21	0.1332
AS's announcing span of /22	13182	% AS's announcing span of /22	0.1686
AS's announcing span of /23	10479	% AS's announcing span of /23	0.1340
AS's announcing span of /24	19932	% AS's announcing span of /24	0.2549
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.

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AS Connectivity Report	Data
AS Adjacency Count	127930
Average AS Connectivity Degree (255860/78851)	3.2449
Average AS Connectivity IN:OUT Degree	0.1512
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	583491	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	569125	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	410192	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	410210	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 Thu Jun 11 20:01:10 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