The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 05 February 2026 06:24 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	9919	623845	5.53%	984	633.99	NCIC-TW New Century InfoComm Tech Co., Ltd., TW
2	5413	512244	4.54%	97	5280.87	WAVENET-AS5413, GB
3	16509	355459	3.15%	14291	24.87	AMAZON-02 - Amazon.com, Inc., US
4	8151	216266	1.92%	12864	16.81	UNINET, MX
5	4780	200303	1.78%	1143	175.24	SEEDNET Digital United Inc., TW
6	9808	160973	1.43%	13734	11.72	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
7	131596	86493	0.77%	1289	67.10	TBCOM-NET TBC, TW
8	7843	78251	0.69%	174	449.72	TWC-7843-BB - Charter Communications Inc, US
9	6147	73091	0.65%	1261	57.96	INTEGRATEL PERU S.A.A., PE
10	7821	68745	0.61%	17	4043.82	ZAYO-MN - Inteliquent, inc., US
11	44244	67613	0.60%	2428	27.85	IRANCELL-AS, IR
12	15766	60787	0.54%	15	4052.47	DOMICILIUM-AS, IM
13	36903	59148	0.52%	1232	48.01	MT-MPLS, MA
14	10620	58187	0.52%	3446	16.89	Telmex Colombia S.A., CO
15	11776	53219	0.47%	1907	27.91	ATLANTICBB-JOHNSTOWN - Breezeline, US
16	13188	52858	0.47%	1607	32.89	TRIOLAN, UA
17	9829	52749	0.47%	1869	28.22	BSNL-NIB National Internet Backbone, IN
18	39891	52453	0.46%	4969	10.56	ALJAWWALSTC-AS, SA
19	335	46964	0.42%	225	208.73	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
20	55410	46552	0.41%	1188	39.19	VIL-AS-AP Vodafone Idea Ltd, IN
21	61053	45192	0.40%	13	3476.31	VPSNET-AS, LT
22	265303	43198	0.38%	44	981.77	BRASIL TECPAR \| AMIGO \| AVATO, BR
23	9340	42101	0.37%	460	91.52	INDONET-AS-AP INDO Internet, PT, ID
24	56046	40587	0.36%	3429	11.84	CMNET-JIANGSU-AP China Mobile communications corporation, CN
25	24154	37794	0.34%	321	117.74	APBT-AS-TW Asia Pacific Broadband Fixed Lines Co., Ltd., TW
26	11664	37709	0.33%	1418	26.59	Techtel LMDS Comunicaciones Interactivas S.A., AR
27	14117	35450	0.31%	483	73.40	Telefonica del Sur S.A., CL
28	31148	34175	0.30%	555	61.58	FREENET_LLC, UA
29	7713	33591	0.30%	3735	8.99	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
30	328608	30671	0.27%	616	49.79	Africa-on-Cloud-AS, ZA
31	18403	30389	0.27%	4494	6.76	FPT-AS-AP FPT Telecom Company, VN
32	20473	29421	0.26%	1587	18.54	AS-VULTR - The Constant Company, LLC, US
33	18822	27838	0.25%	421	66.12	Manquehuenet, CL
34	400619	27641	0.25%	349	79.20	AROSS-AS - AROSSCLOUD INC., US
35	11830	27128	0.24%	1992	13.62	Instituto Costarricense de Electricidad y Telecom., CR
36	5371	27083	0.24%	299	90.58	DNIC-ASBLK-05120-05376 - United States Department of Defense DoD, US
37	647	26910	0.24%	465	57.87	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
38	174	25791	0.23%	3827	6.74	COGENT-174 - Cogent Communications, LLC, US
39	58224	25306	0.22%	1171	21.61	TCI, IR
40	22884	24615	0.22%	1057	23.29	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
41	197207	24443	0.22%	862	28.36	MCCI-AS, IR
42	22773	24143	0.21%	4782	5.05	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
43	17561	24013	0.21%	3447	6.97	LCS-AS-AP LARUS Limited, HK
44	12389	23580	0.21%	3179	7.42	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
45	42337	23208	0.21%	708	32.78	RESPINA-AS, IR
46	20940	22433	0.20%	3954	5.67	AKAMAI-ASN1, NL
47	36914	22065	0.20%	584	37.78	KENET-AS, KE
48	37069	21943	0.19%	1117	19.64	MOBINIL, EG
49	7029	21730	0.19%	2641	8.23	WINDSTREAM - Windstream Communications LLC, US
50	136255	21646	0.19%	125	173.17	TIMCL-AS-AP Telecom International Myanmar Co., Ltd, MM
Total		3807994	33.76%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	10010.5	0.18%	2	20021	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	8613	5619.7	0.15%	3	16859	WAVENET-AS8613, GB
3	41383	5589.0	0.10%	8	11178	WOLASN, GB
4	56644	5490.0	0.05%	2	5490	SYNFS-AS, GB
5	197320	5394.0	0.05%	1	5394	NPA-AS, GB
6	5413	5280.9	4.54%	97	512244	WAVENET-AS5413, GB
7	208907	5217.0	0.05%	1	5217	RISING-BRIDGE-TECHNOLOGY, GB
8	33764	4508.0	0.04%	3	4508	AFRINIC-ZA-JNB-AS, MU
9	7954	4081.0	0.11%	3	12243	IMMENSE-NETWORKS - Immense Networks, LLC, US
10	15766	4052.5	0.54%	15	60787	DOMICILIUM-AS, IM
11	7821	4043.8	0.61%	17	68745	ZAYO-MN - Inteliquent, inc., US
12	213812	3628.0	0.06%	2	7256	ALFATEH, SY
13	29469	3509.0	0.06%	2	7018	GTU Khmelnitsky, Ukraine, UA
14	61053	3476.3	0.40%	13	45192	VPSNET-AS, LT
15	51897	3334.0	0.03%	1	3334	MIHAN, IR
16	134129	2931.0	0.08%	3	8793	IDNIC-IDNNUNET-ID PT IDN NUSANTARA NETWORK, ID
17	136225	2907.0	0.08%	3	8721	SMARTTELECOM-AS-AP Smart Telecom, PK
18	57670	2870.0	0.15%	6	17220	ASOPENWAY, UA
19	53571	2812.5	0.05%	14	5625	PCC-CORP - PRECISION CASTPARTS CORP, US
20	32071	2754.0	0.02%	1	2754	WKU-AS - Western Kentucky University, US
21	21074	2567.0	0.05%	2	5134	ASN-AT-VR22, IT
22	29052	2532.0	0.02%	1	2532	LYCOS-AS Lykos group is among the pioneers that shape the printing market, AT
23	136867	2194.0	0.06%	3	6582	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
24	40138	2124.4	0.09%	5	10622	MDNET - Mach Dilemma, LLC, US
25	8791	1997.7	0.05%	3	5993	FOEHN, GB
26	401017	1931.0	0.02%	1	1931	AAICE-ASN - AAICE, US
27	206467	1872.3	0.05%	3	5617	PROTECH-COMMS, GB
28	13341	1839.5	0.07%	5	7358	TRANQUILITY - Tranquility Internet Services Inc., US
29	134659	1786.5	0.03%	2	3573	IDNIC-DISKOMINFODKI-AS-ID Diskominfo DKI Jakarta, ID
30	12357	1764.7	0.11%	17	12353	COMUNITEL SPAIN, ES
31	265566	1691.7	0.04%	3	5075	TELESISTEMAS PENINSULARES SA DE CV, MX
32	200070	1650.0	0.01%	4	1650	CZNIC-AS2, CZ
33	269185	1635.0	0.03%	5	3270	Globalfiber Telecom LTDA, BR
34	202364	1426.0	0.05%	4	5704	GRIDH, GB
35	61137	1426.0	0.09%	7	9982	ANKABUTSERVICES, AE
36	140459	1410.0	0.01%	1	1410	STREAKY-AS-ID PT Mikrotik Indonesia Streaky, ID
37	212033	1383.0	0.01%	1	1383	ENBITCON-AS, DE
38	265303	1309.0	0.38%	44	43198	BRASIL TECPAR \| AMIGO \| AVATO, BR
39	17794	1299.0	0.03%	13	3897	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
40	395327	1289.0	0.01%	1	1289	BAYFEDCU - BAY FEDERAL CREDIT UNION, US
41	36719	1279.0	0.01%	1	1279	MMU-53-AS-NET - Mount Mercy University, US
42	267408	1260.3	0.03%	4	3781	Provedor de Acesso a Internet de Pernambuco Ltda, BR
43	41538	1204.0	0.02%	2	2408	INSPIRED-AS, GB
44	62037	1199.0	0.01%	1	1199	TFS-, BG
45	29874	1198.2	0.04%	4	4793	CAMBRI-AS1 - Cambridge Associates, US
46	329401	1190.0	0.02%	2	2380	Fastr-Connect, ZA
47	37713	1065.5	0.02%	2	2131	Access-Communications-Ltd, MW
48	199276	1033.7	0.06%	7	7236	ERM, AL
49	265046	1017.3	0.03%	3	3052	NET-MAIS INFORMATICA, BR
50	28657	988.3	0.03%
Total		134071.3	8.83%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12231	0.11%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
2	130.137.231.0/24	10823	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
3	124.195.190.0/24	10433	0.09%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
4	103.177.87.0/24	10125	0.09%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
5	103.177.86.0/24	9896	0.09%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
6	55.27.217.0/24	9373	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
7	55.67.56.0/24	9361	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.27.56.0/24	9349	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	103.84.53.0/24	8646	0.07%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
10	186.83.117.0/24	8492	0.07%	10620 -- Telmex Colombia S.A., CO
11	130.137.108.0/24	8067	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
12	173.82.125.0/24	7913	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
13	130.137.12.0/24	7854	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	130.137.230.0/24	7488	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	199.47.232.0/22	7310	0.06%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
16	130.137.219.0/24	6909	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
17	55.74.56.0/24	6893	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
18	55.74.57.0/24	6880	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
19	173.82.66.0/24	6869	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	84.205.66.0/24	6805	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
21	130.137.80.0/24	6787	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
22	130.137.79.0/24	6685	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
23	130.137.118.0/24	6679	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
24	103.104.136.0/24	6543	0.06%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
25	173.82.108.0/24	6476	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	200.150.164.0/24	6474	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
27	186.251.129.0/24	6473	0.06%	53225 -- IPGLOBE INTERNET LTDA, BR
28	200.150.165.0/24	6468	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
29	200.150.174.0/24	6432	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
30	201.87.153.0/24	6422	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
31	173.82.63.0/24	6412	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	193.105.156.0/24	6411	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
33	201.87.149.0/24	6383	0.05%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
34	195.114.122.0/24	6379	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
35	173.82.67.0/24	6373	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
36	195.114.123.0/24	6292	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
37	130.137.28.0/24	6287	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.127.0/24	6192	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
39	130.137.89.0/24	6181	0.05%	14618 -- AMAZON-AES - Amazon.com, Inc., US
40	130.137.140.0/24	6143	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.99.0/24	6127	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.124.0/24	6121	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.105.0/24	6120	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	130.137.150.0/24	6098	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.26.0/24	6093	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.130.0/24	6078	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.111.0/24	6049	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.227.0/24	6039	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	109.200.125.0/24	6033	0.05%	41560 -- UT-SVR, RU
50	130.137.47.0/24	6026	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
Total		360993	3.10%

14 Day BGP Profile: 22-January-2026 00:00 - 4-February-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	25931108
Number of Prefix Updates:	11280725
Number of Prefix Withdrawals:	356598
Average Prefixes per BGP Update:	0.45
Average BGP Update Messages per second:	21.44
Average Prefix Updates per second:	9.62
Peak BGP Update Message Rate per second:	77585	(16:38:24 Wed, 28-Jan-2026)
Peak Prefix Update Rate per second:	1369	(05:13:14 Tue, 3-Feb-2026)
Peak Prefix Withdraw Rate per second:	25176	(11:45:32 Mon, 2-Feb-2026)
Prefix Count:	1075002
Updated Prefix Count:	721633
Stable Prefix Count:	353369
Origin AS Count:	77917
Updated Origin AS Count:	61584
Stable Origin AS Count:	16333
Unique Path Count:	572123
Updated Path Count:	417912
Stable Path Count:	154211

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.