The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 21 January 2026 06:21 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	5413	535577	6.24%	97	5521.41	WAVENET-AS5413, GB
2	16509	335702	3.91%	14368	23.36	AMAZON-02 - Amazon.com, Inc., US
3	8151	264176	3.08%	12856	20.55	UNINET, MX
4	9808	91073	1.06%	13745	6.63	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
5	36903	72028	0.84%	1232	58.46	MT-MPLS, MA
6	55410	71949	0.84%	1179	61.03	VIL-AS-AP Vodafone Idea Ltd, IN
7	7821	71618	0.83%	17	4212.82	ZAYO-MN - Inteliquent, inc., US
8	9919	67168	0.78%	978	68.68	NCIC-TW New Century InfoComm Tech Co., Ltd., TW
9	15766	62542	0.73%	15	4169.47	DOMICILIUM-AS, IM
10	10620	57294	0.67%	3442	16.65	Telmex Colombia S.A., CO
11	335	53078	0.62%	220	241.26	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	6147	45756	0.53%	1260	36.31	INTEGRATEL PERU S.A.A., PE
13	39891	44721	0.52%	4969	9.00	ALJAWWALSTC-AS, SA
14	401696	42952	0.50%	228	188.39	COGNETCLOUD - cognetcloud INC, US
15	9829	37437	0.44%	1895	19.76	BSNL-NIB National Internet Backbone, IN
16	18101	36376	0.42%	683	53.26	RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI, IN
17	58224	36367	0.42%	1242	29.28	TCI, IR
18	24835	34453	0.40%	1990	17.31	RAYA-AS, EG
19	42337	34293	0.40%	732	46.85	RESPINA-AS, IR
20	9294	32960	0.38%	152	216.84	GNETINC-AS-AP GNET INC., US
21	36935	32692	0.38%	1184	27.61	Vodafone-, EG
22	18403	31526	0.37%	4543	6.94	FPT-AS-AP FPT Telecom Company, VN
23	20011	30660	0.36%	913	33.58	NTT-DATA-Inc, ZA
24	9340	29489	0.34%	406	72.63	INDONET-AS-AP INDO Internet, PT, ID
25	28573	28918	0.34%	1493	19.37	Claro NXT Telecomunicacoes Ltda, BR
26	31148	28446	0.33%	554	51.35	FREENET_LLC, UA
27	12479	27365	0.32%	7311	3.74	UNI2-AS, ES
28	45899	26615	0.31%	3335	7.98	VNPT-AS-VN VNPT Corp, VN
29	5277	26234	0.31%	145	180.92	DNIC-ASBLK-05120-05376 - United States Department of Defense DoD, US
30	4780	25950	0.30%	1047	24.79	SEEDNET Digital United Inc., TW
31	28227	25472	0.30%	46	553.74	NOVACIA TECNOLOGIA E TELECOMUNICACOES LTDA, BR
32	2609	24911	0.29%	76	327.78	TN-BB-AS Tunisia BackBone AS, TN
33	11830	24871	0.29%	1992	12.49	Instituto Costarricense de Electricidad y Telecom., CR
34	136255	24804	0.29%	126	196.86	TIMCL-AS-AP Telecom International Myanmar Co., Ltd, MM
35	265594	24651	0.29%	86	286.64	Television Internacional, S.A. de C.V., MX
36	203020	24156	0.28%	1642	14.71	HOSTROYALE, IN
37	56046	23485	0.27%	3422	6.86	CMNET-JIANGSU-AP China Mobile communications corporation, CN
38	5371	22818	0.27%	313	72.90	DNIC-ASBLK-05120-05376 - United States Department of Defense DoD, US
39	13188	22664	0.26%	1607	14.10	TRIOLAN, UA
40	36914	22077	0.26%	582	37.93	KENET-AS, KE
41	8452	21805	0.25%	1720	12.68	TE-AS TE-AS, EG
42	149038	21442	0.25%	2	10721.00	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
43	367	21271	0.25%	2028	10.49	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
44	197207	21101	0.25%	818	25.80	MCCI-AS, IR
45	45474	20006	0.23%	89	224.79	NEXUSGUARD-AS-AP Nexusguard Pte. Ltd., SG
46	5972	19832	0.23%	1427	13.90	DNIC-ASBLK-05800-06055 - United States Department of Defense DoD, US
47	11664	19718	0.23%	1402	14.06	Techtel LMDS Comunicaciones Interactivas S.A., AR
48	33915	19386	0.23%	346	56.03	TNF-AS, NL
49	647	19382	0.23%	455	42.60	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
50	8369	19366	0.23%	57	339.75	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
Total		2758633	32.15%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	7954	12205.0	0.14%	3	12205	IMMENSE-NETWORKS - Immense Networks, LLC, US
2	149038	10721.0	0.25%	2	21442	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	208907	6363.0	0.07%	1	6363	RISING-BRIDGE-TECHNOLOGY, GB
4	8613	5795.0	0.20%	3	17385	WAVENET-AS8613, GB
5	197320	5794.0	0.07%	1	5794	NPA-AS, GB
6	29874	5789.0	0.07%	4	5789	CAMBRI-AS1 - Cambridge Associates, US
7	15766	5685.6	0.73%	15	62542	DOMICILIUM-AS, IM
8	56644	5663.0	0.07%	2	5663	SYNFS-AS, GB
9	5413	5521.4	6.24%	97	535577	WAVENET-AS5413, GB
10	213812	4433.0	0.10%	2	8866	ALFATEH, SY
11	7821	4212.8	0.83%	17	71618	ZAYO-MN - Inteliquent, inc., US
12	40138	3907.7	0.14%	5	11723	MDNET - Mach Dilemma, LLC, US
13	8791	3829.7	0.13%	3	11489	FOEHN, GB
14	29469	3591.0	0.04%	1	3591	GTU Khmelnitsky, Ukraine, UA
15	51897	3282.0	0.04%	1	3282	MIHAN, IR
16	27621	2955.0	0.03%	8	2955	AMERICAN-COMPUTER-ASSOCIATES-SCHUYL-INC - AMERICAN COMPUTER ASSOCIATES, US
17	57670	2801.3	0.20%	6	16808	ASOPENWAY, UA
18	211535	2718.0	0.16%	5	13590	ASILKARI, IE
19	136225	2591.0	0.09%	3	7773	SMARTTELECOM-AS-AP Smart Telecom, PK
20	329627	2479.0	0.03%	3	2479	Wingu-Tanzania, TZ
21	398741	2364.0	0.03%	1	2364	AS-VERTEXLINK-01 - VertexLink Inc, US
22	202319	2244.7	0.08%	3	6734	SOTOON-CDN, IR
23	265566	2084.7	0.07%	3	6254	TELESISTEMAS PENINSULARES SA DE CV, MX
24	29052	2083.0	0.02%	1	2083	LYCOS-AS Lykos group is among the pioneers that shape the printing market, AT
25	206467	1920.0	0.07%	3	5760	PROTECH-COMMS, GB
26	265046	1867.7	0.07%	3	5603	NET-MAIS INFORMATICA, BR
27	329613	1816.0	0.02%	1	1816	Iris-Smart-Technologies, NG
28	401017	1741.0	0.02%	1	1741	AAICE-ASN - AAICE, US
29	41383	1448.0	0.13%	8	11584	WOLASN, GB
30	13341	1439.2	0.08%	5	7196	TRANQUILITY - Tranquility Internet Services Inc., US
31	36719	1393.0	0.02%	1	1393	MMU-53-AS-NET - Mount Mercy University, US
32	17794	1349.3	0.05%	13	4048	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
33	329104	1345.0	0.02%	1	1345	AL14-AS, RW
34	134659	1281.5	0.03%	2	2563	IDNIC-DISKOMINFODKI-AS-ID Diskominfo DKI Jakarta, ID
35	328999	1141.5	0.05%	4	4566	BrowsePoint, NG
36	57285	1092.0	0.01%	1	1092	UKRINFOSYSTEMS-AS, UA
37	28657	1087.7	0.04%	3	3263	MD Brasil - Tecnologia da Informacao Ltda, BR
38	29382	1072.0	0.02%	2	2144	UKRINFOSYSTEMS-AS, UA
39	132386	1052.0	0.05%	4	4208	USMANISP-AS-AP Usman Internet Service Provider Private Limited, PK
40	41538	1023.5	0.02%	2	2047	INSPIRED-AS, GB
41	272499	995.0	0.01%	1	995	SSP - SERVICOS DE INFORMATICA E TELECOM LTDA., BR
42	328300	964.0	0.01%	1	964	Malawi-Bank-AS, MW
43	395327	949.0	0.01%	1	949	BAYFEDCU - BAY FEDERAL CREDIT UNION, US
44	51912	924.0	0.01%	1	924	EAO-AS, RU
45	328448	914.0	0.01%	1	914	Direction-Generale-Des-Impots-AS, BF
46	29103	887.0	0.01%	1	887	GSR Gdansk, Poland, PL
47	214675	874.0	0.01%	1	874	STARLAMP Starlamp Network Project, JP
48	61053	870.7	0.12%	13	10448	VPSNET-AS, LT
49	203952	859.5	0.04%	4	3438	NS-AS-2, NL
50	271217	843.0	0.04%
Total		140263.5	10.80%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12205	0.14%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
2	124.195.190.0/24	11443	0.13%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10865	0.12%	16509 -- AMAZON-02 - Amazon.com, Inc., US
4	103.177.87.0/24	10829	0.12%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
5	103.177.86.0/24	10613	0.12%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
6	55.27.217.0/24	10141	0.11%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
7	55.27.56.0/24	10138	0.11%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.67.56.0/24	10126	0.11%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	117.54.132.0/24	9497	0.11%	9340 -- INDONET-AS-AP INDO Internet, PT, ID
10	55.74.57.0/24	9178	0.10%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
11	55.74.56.0/24	9167	0.10%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	186.83.117.0/24	8621	0.10%	10620 -- Telmex Colombia S.A., CO
13	130.137.108.0/24	8099	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	173.82.125.0/24	7953	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	130.137.12.0/24	7748	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
16	103.84.53.0/24	7743	0.09%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
17	130.137.230.0/24	7641	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
18	199.47.232.0/22	7074	0.08%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
19	173.82.66.0/24	6901	0.08%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	186.251.129.0/24	6855	0.08%	53225 -- IPGLOBE INTERNET LTDA, BR
21	130.137.219.0/24	6854	0.08%	16509 -- AMAZON-02 - Amazon.com, Inc., US
22	130.137.80.0/24	6820	0.08%	16509 -- AMAZON-02 - Amazon.com, Inc., US
23	84.205.66.0/24	6816	0.08%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
24	130.137.79.0/24	6679	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
25	130.137.118.0/24	6644	0.07%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
26	173.82.108.0/24	6536	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	173.82.63.0/24	6490	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	195.114.122.0/24	6473	0.07%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	195.114.123.0/24	6431	0.07%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
30	173.82.67.0/24	6422	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
31	193.105.156.0/24	6382	0.07%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
32	44.31.52.0/24	6366	0.07%	208453 -- SWEHOST-NET, SE 208907 -- RISING-BRIDGE-TECHNOLOGY, GB
33	130.137.130.0/24	6220	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
34	130.137.124.0/24	6203	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	45.172.92.0/22	6188	0.07%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
36	130.137.28.0/24	6172	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
37	130.137.150.0/24	6170	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.140.0/24	6167	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
39	109.200.125.0/24	6165	0.07%	41560 -- UT-SVR, RU
40	130.137.127.0/24	6125	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.16.0/24	6120	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.105.0/24	6105	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.26.0/24	6094	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	173.82.129.0/24	6080	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.47.0/24	6068	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.111.0/24	6054	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.89.0/24	6044	0.07%	14618 -- AMAZON-AES - Amazon.com, Inc., US
48	130.137.227.0/24	6041	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.90.0/24	5980	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	130.137.136.0/24	5964	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
Total		371710	4.19%

14 Day BGP Profile: 7-January-2026 00:00 - 20-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	22015338
Number of Prefix Updates:	8581171
Number of Prefix Withdrawals:	384980
Average Prefixes per BGP Update:	0.41
Average BGP Update Messages per second:	18.20
Average Prefix Updates per second:	7.41
Peak BGP Update Message Rate per second:	40108	(22:08:16 Mon, 19-Jan-2026)
Peak Prefix Update Rate per second:	1100	(01:23:02 Fri, 9-Jan-2026)
Peak Prefix Withdraw Rate per second:	24550	(08:32:25 Fri, 9-Jan-2026)
Prefix Count:	1067633
Updated Prefix Count:	682659
Stable Prefix Count:	384974
Origin AS Count:	77815
Updated Origin AS Count:	59468
Stable Origin AS Count:	18347
Unique Path Count:	526025
Updated Path Count:	372348
Stable Path Count:	153677

Hourly Average of Per-Second Updated and Withdrawn Prefix Rate

Hourly Peak of Per-Second Updated and Withdrawn Prefix Rate

Hourly Average Per-Second Updated Prefix Rate by Update Type

Hourly Peak of Per-Second Updated Prefix Rate by Update Type

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates

Notes

The data has been gathered using a single eBGP peering with AS 131072. The observations of BGP path change are relative to this observation point. The updates are generated by a Quagga BGP implementation providing a timestamped log of incoming update messages. The timezone of this monitoring point is UTC+1000. Updates are processed on a 24 hour cycle.