The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 07 February 2026 06:25 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	9919	622465	5.20%	984	632.59	NCIC-TW New Century InfoComm Tech Co., Ltd., TW
2	5413	525394	4.39%	97	5416.43	WAVENET-AS5413, GB
3	16509	391506	3.27%	14280	27.42	AMAZON-02 - Amazon.com, Inc., US
4	9808	312339	2.61%	13806	22.62	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
5	8151	258749	2.16%	12801	20.21	UNINET, MX
6	4780	199608	1.67%	1143	174.64	SEEDNET Digital United Inc., TW
7	36903	102333	0.85%	1232	83.06	MT-MPLS, MA
8	131596	85699	0.72%	1288	66.54	TBCOM-NET TBC, TW
9	6147	83121	0.69%	1261	65.92	INTEGRATEL PERU S.A.A., PE
10	7843	82920	0.69%	174	476.55	TWC-7843-BB - Charter Communications Inc, US
11	56046	81980	0.68%	3429	23.91	CMNET-JIANGSU-AP China Mobile communications corporation, CN
12	44244	75816	0.63%	2466	30.74	IRANCELL-AS, IR
13	328608	66088	0.55%	617	107.11	Africa-on-Cloud-AS, ZA
14	7821	66025	0.55%	17	3883.82	ZAYO-MN - Inteliquent, inc., US
15	39891	64493	0.54%	4969	12.98	ALJAWWALSTC-AS, SA
16	15766	61843	0.52%	15	4122.87	DOMICILIUM-AS, IM
17	9829	61620	0.51%	1877	32.83	BSNL-NIB National Internet Backbone, IN
18	10620	56876	0.47%	3446	16.50	Telmex Colombia S.A., CO
19	13188	54874	0.46%	1607	34.15	TRIOLAN, UA
20	265303	53983	0.45%	45	1199.62	BRASIL TECPAR \| AMIGO \| AVATO, BR
21	400619	52729	0.44%	353	149.37	AROSS-AS - AROSSCLOUD INC., US
22	335	48187	0.40%	225	214.16	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
23	9340	47931	0.40%	462	103.75	INDONET-AS-AP INDO Internet, PT, ID
24	55410	46910	0.39%	1184	39.62	VIL-AS-AP Vodafone Idea Ltd, IN
25	11776	41704	0.35%	1907	21.87	ATLANTICBB-JOHNSTOWN - Breezeline, US
26	56047	39392	0.33%	1730	22.77	CMNET-HUNAN-AP China Mobile communications corporation, CN
27	56041	38330	0.32%	1835	20.89	CMNET-ZHEJIANG-AP China Mobile communications corporation, CN
28	24154	37674	0.31%	321	117.36	APBT-AS-TW Asia Pacific Broadband Fixed Lines Co., Ltd., TW
29	11664	36740	0.31%	1414	25.98	Techtel LMDS Comunicaciones Interactivas S.A., AR
30	61053	33507	0.28%	13	2577.46	VPSNET-AS, LT
31	647	33148	0.28%	475	69.79	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
32	45899	32668	0.27%	3335	9.80	VNPT-AS-VN VNPT Corp, VN
33	31148	32640	0.27%	555	58.81	FREENET_LLC, UA
34	20473	31590	0.26%	1592	19.84	AS-VULTR - The Constant Company, LLC, US
35	42337	29710	0.25%	708	41.96	RESPINA-AS, IR
36	58224	28840	0.24%	1171	24.63	TCI, IR
37	18403	27652	0.23%	4493	6.15	FPT-AS-AP FPT Telecom Company, VN
38	197207	26504	0.22%	882	30.05	MCCI-AS, IR
39	174	26080	0.22%	3849	6.78	COGENT-174 - Cogent Communications, LLC, US
40	17561	25449	0.21%	3320	7.67	LCS-AS-AP LARUS Limited, HK
41	14117	25253	0.21%	483	52.28	Telefonica del Sur S.A., CL
42	5371	24830	0.21%	300	82.77	DNIC-ASBLK-05120-05376 - United States Department of Defense DoD, US
43	22884	24531	0.20%	1057	23.21	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
44	24444	24336	0.20%	1098	22.16	CMNET-V4SHANDONG-AS-AP Shandong Mobile Communication Company Limited, CN
45	22773	24128	0.20%	4783	5.04	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
46	12389	23695	0.20%	3179	7.45	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
47	36914	23368	0.20%	584	40.01	KENET-AS, KE
48	28391	23160	0.19%	161	143.85	Universidad Juarez Autonoma de Tabasco, MX
49	11830	22542	0.19%	1992	11.32	Instituto Costarricense de Electricidad y Telecom., CR
50	20940	21905	0.18%	3957	5.54	AKAMAI-ASN1, NL
Total		4262865	35.57%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	9597.5	0.16%	2	19195	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	8613	5703.3	0.14%	3	17110	WAVENET-AS8613, GB
3	53571	5695.0	0.05%	14	5695	PCC-CORP - PRECISION CASTPARTS CORP, US
4	41383	5676.0	0.09%	8	11352	WOLASN, GB
5	15766	5622.1	0.52%	15	61843	DOMICILIUM-AS, IM
6	56644	5585.0	0.05%	2	5585	SYNFS-AS, GB
7	197320	5486.0	0.05%	1	5486	NPA-AS, GB
8	5413	5416.4	4.39%	97	525394	WAVENET-AS5413, GB
9	208907	5081.0	0.04%	1	5081	RISING-BRIDGE-TECHNOLOGY, GB
10	33764	4517.0	0.04%	3	4517	AFRINIC-ZA-JNB-AS, MU
11	7954	4094.3	0.10%	3	12283	IMMENSE-NETWORKS - Immense Networks, LLC, US
12	7821	3883.8	0.55%	17	66025	ZAYO-MN - Inteliquent, inc., US
13	213812	3842.0	0.06%	2	7684	ALFATEH, SY
14	29469	3735.5	0.06%	2	7471	GTU Khmelnitsky, Ukraine, UA
15	134129	3654.3	0.09%	3	10963	IDNIC-IDNNUNET-ID PT IDN NUSANTARA NETWORK, ID
16	51897	3383.0	0.03%	1	3383	MIHAN, IR
17	136225	2959.7	0.07%	3	8879	SMARTTELECOM-AS-AP Smart Telecom, PK
18	57670	2862.0	0.14%	6	17172	ASOPENWAY, UA
19	29052	2661.0	0.02%	1	2661	LYCOS-AS Lykos group is among the pioneers that shape the printing market, AT
20	61053	2577.5	0.28%	13	33507	VPSNET-AS, LT
21	21074	2501.0	0.04%	2	5002	ASN-AT-VR22, IT
22	272499	2471.0	0.02%	1	2471	SSP - SERVICOS DE INFORMATICA E TELECOM LTDA., BR
23	267377	2397.0	0.02%	4	2397	acesso net telecomunicacoes ltda-me, BR
24	32071	2379.0	0.02%	1	2379	WKU-AS - Western Kentucky University, US
25	40138	2208.6	0.09%	5	11043	MDNET - Mach Dilemma, LLC, US
26	136867	2179.3	0.05%	3	6538	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
27	134659	2096.0	0.03%	2	4192	IDNIC-DISKOMINFODKI-AS-ID Diskominfo DKI Jakarta, ID
28	401017	1921.0	0.02%	1	1921	AAICE-ASN - AAICE, US
29	206467	1902.0	0.05%	3	5706	PROTECH-COMMS, GB
30	13341	1847.8	0.06%	5	7391	TRANQUILITY - Tranquility Internet Services Inc., US
31	12357	1730.4	0.10%	17	12113	COMUNITEL SPAIN, ES
32	200070	1699.0	0.01%	4	1699	CZNIC-AS2, CZ
33	265566	1623.3	0.04%	3	4870	TELESISTEMAS PENINSULARES SA DE CV, MX
34	36719	1592.0	0.01%	1	1592	MMU-53-AS-NET - Mount Mercy University, US
35	329401	1591.5	0.03%	2	3183	Fastr-Connect, ZA
36	37713	1494.5	0.02%	2	2989	Access-Communications-Ltd, MW
37	202364	1447.8	0.05%	4	5791	GRIDH, GB
38	8791	1444.3	0.04%	3	4333	FOEHN, GB
39	61137	1423.9	0.08%	7	9967	ANKABUTSERVICES, AE
40	140459	1410.0	0.01%	1	1410	STREAKY-AS-ID PT Mikrotik Indonesia Streaky, ID
41	212033	1383.0	0.01%	1	1383	ENBITCON-AS, DE
42	17794	1272.0	0.03%	13	3816	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
43	203952	1254.8	0.04%	4	5019	NS-AS-2, NL
44	41538	1249.0	0.02%	2	2498	INSPIRED-AS, GB
45	265303	1199.6	0.45%	45	53983	BRASIL TECPAR \| AMIGO \| AVATO, BR
46	269185	1164.7	0.03%	5	3494	Globalfiber Telecom LTDA, BR
47	395327	1155.0	0.01%	1	1155	BAYFEDCU - BAY FEDERAL CREDIT UNION, US
48	43509	1139.2	0.05%	5	5696	BANK-VERLAG-GMBH, DE
49	43857	1102.4	0.07%	9	8819	FRAPORT, DE
50	16107	1090.5	0.04%
Total		141402	8.47%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12271	0.10%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
2	130.137.231.0/24	10779	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
3	124.195.190.0/24	10509	0.09%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
4	103.177.87.0/24	9708	0.08%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
5	55.27.217.0/24	9534	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
6	55.27.56.0/24	9515	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
7	55.67.56.0/24	9512	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	103.177.86.0/24	9487	0.08%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
9	103.84.53.0/24	8841	0.07%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
10	186.83.117.0/24	8562	0.07%	10620 -- Telmex Colombia S.A., CO
11	201.87.153.0/24	8133	0.07%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
12	200.150.165.0/24	8084	0.07%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
13	130.137.108.0/24	8081	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	200.150.164.0/24	8074	0.07%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
15	200.150.174.0/24	8002	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
16	201.87.149.0/24	7926	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
17	173.82.125.0/24	7919	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
18	130.137.12.0/24	7835	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
19	55.74.56.0/24	7538	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
20	55.74.57.0/24	7532	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
21	130.137.230.0/24	7490	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
22	199.47.232.0/22	7343	0.06%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
23	130.137.219.0/24	6977	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
24	84.205.66.0/24	6827	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
25	173.82.66.0/24	6826	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	130.137.80.0/24	6781	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	130.137.79.0/24	6682	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	130.137.118.0/24	6627	0.05%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
29	103.104.136.0/24	6497	0.05%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
30	173.82.108.0/24	6480	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
31	173.82.63.0/24	6418	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	186.251.129.0/24	6398	0.05%	53225 -- IPGLOBE INTERNET LTDA, BR
33	195.114.122.0/24	6335	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
34	195.114.123.0/24	6334	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
35	173.82.67.0/24	6315	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
36	193.105.156.0/24	6301	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
37	130.137.28.0/24	6290	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.89.0/24	6171	0.05%	14618 -- AMAZON-AES - Amazon.com, Inc., US
39	130.137.127.0/24	6157	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.124.0/24	6128	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.99.0/24	6125	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.105.0/24	6094	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.140.0/24	6085	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	130.137.227.0/24	6067	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.47.0/24	6058	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.150.0/24	6056	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.111.0/24	6048	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.16.0/24	6019	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.130.0/24	6018	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	130.137.26.0/24	6011	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
Total		369800	3.01%

14 Day BGP Profile: 24-January-2026 00:00 - 6-February-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	26963447
Number of Prefix Updates:	11980972
Number of Prefix Withdrawals:	359388
Average Prefixes per BGP Update:	0.46
Average BGP Update Messages per second:	22.29
Average Prefix Updates per second:	10.20
Peak BGP Update Message Rate per second:	77585	(16:38:24 Wed, 28-Jan-2026)
Peak Prefix Update Rate per second:	1417	(05:13:14 Tue, 3-Feb-2026)
Peak Prefix Withdraw Rate per second:	30464	(11:45:32 Mon, 2-Feb-2026)
Prefix Count:	1074793
Updated Prefix Count:	711139
Stable Prefix Count:	363654
Origin AS Count:	77955
Updated Origin AS Count:	61513
Stable Origin AS Count:	16442
Unique Path Count:	575614
Updated Path Count:	420635
Stable Path Count:	154979

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.