The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 04 January 2026 06:18 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	5413	502424	7.02%	97	5179.63	WAVENET-AS5413, GB
2	16509	353959	4.94%	14208	24.91	AMAZON-02, US
3	8151	161709	2.26%	12703	12.73	UNINET, MX
4	12252	124319	1.74%	702	177.09	America Movil Peru S.A.C., PE
5	7821	71389	1.00%	17	4199.35	ZAYO-MN, US
6	15766	56914	0.79%	15	3794.27	DOMICILIUM-AS, IM
7	335	55000	0.77%	224	245.54	DNIC-ASBLK-00306-00371, US
8	18403	51779	0.72%	4594	11.27	FPT-AS-AP FPT Telecom Company, VN
9	4837	48424	0.68%	1032	46.92	CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN
10	36903	47217	0.66%	1261	37.44	MT-MPLS, MA
11	10620	45330	0.63%	3434	13.20	Telmex Colombia S.A., CO
12	212477	40393	0.56%	144	280.51	ROYALE-AS, NL
13	6648	34295	0.48%	264	129.91	BAYAN-TELECOMMUNICATIONS Bayan Telecommunications, Inc., PH
14	58224	30717	0.43%	1172	26.21	TCI, IR
15	9829	30533	0.43%	1862	16.40	BSNL-NIB National Internet Backbone, IN
16	197207	28352	0.40%	1039	27.29	MCCI-AS, IR
17	9808	27988	0.39%	13533	2.07	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
18	31148	24579	0.34%	554	44.37	FREENET_LLC, UA
19	13188	24226	0.34%	1607	15.08	TRIOLAN, UA
20	28227	24093	0.34%	46	523.76	NOVACIA TECNOLOGIA E TELECOMUNICACOES LTDA, BR
21	8452	23023	0.32%	1716	13.42	TE-AS TE-AS, EG
22	2609	22797	0.32%	88	259.06	TN-BB-AS Tunisia BackBone AS, TN
23	1257	22125	0.31%	394	56.15	TELE2, EU
24	20473	21914	0.31%	1404	15.61	AS-VULTR, US
25	36914	21719	0.30%	580	37.45	KENET-AS, KE
26	17561	21373	0.30%	3471	6.16	LCS-AS-AP LARUS Limited, HK
27	6147	21158	0.30%	1263	16.75	Telefonica del Peru S.A.A., PE
28	37294	20891	0.29%	142	147.12	TNM, MW
29	647	20402	0.28%	440	46.37	DNIC-ASBLK-00616-00665, US
30	44244	20271	0.28%	730	27.77	IRANCELL-AS, IR
31	8369	19758	0.28%	121	163.29	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
32	39891	18980	0.27%	4969	3.82	ALJAWWALSTC-AS, SA
33	24186	18861	0.26%	591	31.91	RAILTEL-AS-IN RailTel Corporation of India Ltd, IN
34	401696	18672	0.26%	234	79.79	COGNETCLOUD, US
35	55410	18604	0.26%	1177	15.81	VIL-AS-AP Vodafone Idea Ltd, IN
36	3303	18120	0.25%	255	71.06	SWISSCOM Swisscom Switzerland Ltd, CH
37	11492	17790	0.25%	4691	3.79	CABLEONE, US
38	328608	17235	0.24%	565	30.50	Africa-on-Cloud-AS, ZA
39	8613	15803	0.22%	3	5267.67	WAVENET-AS8613, GB
40	8866	15785	0.22%	969	16.29	VIVACOM-AS BULGARIA, BG
41	47065	15450	0.22%	18	858.33	PEERING-RESEARCH-TESTBED-USC-UFMG-AS47065, US
42	149038	15343	0.21%	2	7671.50	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
43	14754	15140	0.21%	475	31.87	TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA, GT
44	27715	15100	0.21%	235	64.26	Locaweb Servicos de Internet SA, BR
45	6503	14483	0.20%	727	19.92	Axtel, S.A.B. de C.V., MX
46	57670	14006	0.20%	6	2334.33	ASOPENWAY, UA
47	36992	13712	0.19%	1852	7.40	ETISALAT-MISR, EG
48	11664	13442	0.19%	1373	9.79	Techtel LMDS Comunicaciones Interactivas S.A., AR
49	12357	13359	0.19%	17	785.82	COMUNITEL SPAIN, ES
50	38444	13260	0.19%	64	207.19	SUPERBROADBANDNETWORK-AS-AP Super Broadband Network, TH
Total		2322216	32.45%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	208907	9770.0	0.14%	1	9770	RISING-BRIDGE-TECHNOLOGY, GB
2	149038	7671.5	0.21%	2	15343	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	265566	5743.0	0.08%	3	5743	TELESISTEMAS PENINSULARES SA DE CV, MX
4	197320	5272.0	0.07%	1	5272	NPA-AS, GB
5	8613	5267.7	0.22%	3	15803	WAVENET-AS8613, GB
6	41383	5257.0	0.15%	8	10514	WOLASN, GB
7	206467	5248.0	0.07%	3	5248	PROTECH-COMMS, GB
8	5413	5179.6	7.02%	97	502424	WAVENET-AS5413, GB
9	15766	5174.0	0.79%	15	56914	DOMICILIUM-AS, IM
10	56644	5147.0	0.07%	2	5147	SYNFS-AS, GB
11	213812	4555.0	0.13%	2	9110	ALFATEH, SY
12	7821	4199.4	1.00%	17	71389	ZAYO-MN, US
13	7954	4149.3	0.17%	3	12448	IMMENSE-NETWORKS, US
14	27892	3747.0	0.05%	1	3747	Universidad del Zulia, VE
15	212274	3501.0	0.05%	1	3501	ELTRAKSA-AS, GR
16	8791	3497.0	0.15%	3	10491	FOEHN, GB
17	29469	3476.0	0.05%	1	3476	GTU Khmelnitsky, Ukraine, UA
18	50340	3225.0	0.14%	393	9675	SELECTEL-MSK, RU
19	51897	3052.0	0.04%	1	3052	MIHAN, IR
20	12357	2671.8	0.19%	17	13359	COMUNITEL SPAIN, ES
21	40138	2637.2	0.18%	5	13186	MDNET, US
22	271217	2460.3	0.10%	4	7381	Nova Info Internet e Telecomunicacoes LTDA, BR
23	265046	2447.5	0.07%	3	4895	NET-MAIS INFORMATICA, BR
24	57670	2334.3	0.20%	6	14006	ASOPENWAY, UA
25	136867	2164.0	0.09%	3	6492	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
26	150512	2129.5	0.06%	2	4259	IDNIC-MASKOMINDONESIARAYA-AS-ID PT Maskom Indonesia Raya, ID
27	41538	2104.0	0.03%	2	2104	INSPIRED-AS, GB
28	21074	2081.0	0.06%	2	4162	ASN-AT-VR22, IT
29	21570	1865.0	0.03%	94	1865	ACI-1, CA
30	329613	1797.0	0.03%	1	1797	Iris-Smart-Technologies, NG
31	13341	1701.2	0.10%	5	6805	TRANQUILITY, US
32	33764	1604.0	0.04%	3	3208	AFRINIC-ZA-JNB-AS, MU
33	136501	1596.0	0.11%	20	7980	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
34	200070	1444.0	0.02%	4	1444	CZNIC-AS2, CZ
35	396982	1339.5	0.04%	3319	2679	GOOGLE-CLOUD-PLATFORM, US
36	29874	1316.8	0.07%	4	5267	CAMBRI-AS1, US
37	329104	1298.0	0.02%	1	1298	AL14-AS, RW
38	399889	1219.5	0.03%	2	2439	NET-FRONT-001, US
39	17794	1198.0	0.05%	13	3594	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
40	136225	1183.7	0.05%	3	3551	SMARTTELECOM-AS-AP Smart Telecom, PK
41	57285	1174.0	0.02%	1	1174	UKRINFOSYSTEMS-AS, UA
42	329627	1170.3	0.05%	3	3511	Wingu-Tanzania, TZ
43	395327	1110.0	0.02%	1	1110	BAYFEDCU, US
44	29382	1086.5	0.03%	2	2173	UKRINFOSYSTEMS-AS, UA
45	204318	1073.0	0.01%	1	1073	BGPTOOLS-QA, GB
46	28657	1045.0	0.04%	3	3135	MD Brasil - Tecnologia da Informacao Ltda, BR
47	264126	1021.0	0.04%	6	3063	SIX INTERNET LTDA, BR
48	265112	1000.0	0.10%	7	7000	DIGITO TELECOMUNICACOES E INFORMATICA LTDA, BR
49	12654	985.4	0.18%	22	12810	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
50	137258	959.0	0.01%
Total		142348	12.67%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12444	0.17%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	11279	0.15%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10932	0.15%	16509 -- AMAZON-02, US
4	55.67.56.0/24	10204	0.14%	335 -- DNIC-ASBLK-00306-00371, US
5	55.27.56.0/24	10198	0.14%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.217.0/24	10172	0.14%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.56.0/24	10126	0.14%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.57.0/24	10116	0.14%	335 -- DNIC-ASBLK-00306-00371, US
9	44.31.52.0/24	9770	0.13%	208907 -- RISING-BRIDGE-TECHNOLOGY, GB
10	186.83.117.0/24	8389	0.11%	10620 -- Telmex Colombia S.A., CO
11	130.137.108.0/24	7912	0.11%	16509 -- AMAZON-02, US
12	173.82.125.0/24	7818	0.10%	16509 -- AMAZON-02, US
13	103.177.87.0/24	7710	0.10%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
14	130.137.12.0/24	7695	0.10%	16509 -- AMAZON-02, US
15	130.137.230.0/24	7694	0.10%	16509 -- AMAZON-02, US
16	103.177.86.0/24	7633	0.10%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
17	186.251.129.0/24	7576	0.10%	53225 -- IPGLOBE INTERNET LTDA, BR
18	143.0.241.0/24	7363	0.10%	271217 -- Nova Info Internet e Telecomunicacoes LTDA, BR
19	173.82.66.0/24	6883	0.09%	16509 -- AMAZON-02, US
20	130.137.219.0/24	6817	0.09%	16509 -- AMAZON-02, US
21	199.47.232.0/22	6796	0.09%	13341 -- TRANQUILITY, US
22	130.137.80.0/24	6743	0.09%	16509 -- AMAZON-02, US
23	84.205.66.0/24	6712	0.09%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
24	130.137.79.0/24	6693	0.09%	16509 -- AMAZON-02, US
25	130.137.118.0/24	6618	0.09%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
26	195.114.123.0/24	6553	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
27	193.105.156.0/24	6547	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
28	173.82.63.0/24	6516	0.09%	16509 -- AMAZON-02, US
29	173.82.108.0/24	6499	0.09%	16509 -- AMAZON-02, US
30	103.104.136.0/24	6483	0.09%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
31	173.82.67.0/24	6434	0.09%	16509 -- AMAZON-02, US
32	195.114.122.0/24	6362	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
33	130.137.28.0/24	6263	0.08%	16509 -- AMAZON-02, US
34	130.137.124.0/24	6217	0.08%	16509 -- AMAZON-02, US
35	130.137.105.0/24	6110	0.08%	16509 -- AMAZON-02, US
36	177.46.36.0/24	6089	0.08%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
37	130.137.227.0/24	6080	0.08%	16509 -- AMAZON-02, US
38	130.137.130.0/24	6078	0.08%	16509 -- AMAZON-02, US
39	130.137.47.0/24	6062	0.08%	16509 -- AMAZON-02, US
40	130.137.26.0/24	6057	0.08%	16509 -- AMAZON-02, US
41	130.137.140.0/24	6043	0.08%	16509 -- AMAZON-02, US
42	173.82.129.0/24	6035	0.08%	16509 -- AMAZON-02, US
43	130.137.99.0/24	6012	0.08%	16509 -- AMAZON-02, US
44	130.137.127.0/24	6011	0.08%	16509 -- AMAZON-02, US
45	130.137.150.0/24	5998	0.08%	16509 -- AMAZON-02, US
46	130.137.89.0/24	5988	0.08%	14618 -- AMAZON-AES, US
47	130.137.111.0/24	5987	0.08%	16509 -- AMAZON-02, US
48	130.137.16.0/24	5969	0.08%	16509 -- AMAZON-02, US
49	130.137.90.0/24	5934	0.08%	16509 -- AMAZON-02, US
50	130.137.78.0/24	5918	0.08%	16509 -- AMAZON-02, US
Total		366538	4.92%

14 Day BGP Profile: 21-December-2025 00:00 - 3-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	15938530
Number of Prefix Updates:	7160008
Number of Prefix Withdrawals:	288843
Average Prefixes per BGP Update:	0.47
Average BGP Update Messages per second:	13.18
Average Prefix Updates per second:	6.16
Peak BGP Update Message Rate per second:	71547	(11:15:45 Tue, 23-Dec-2025)
Peak Prefix Update Rate per second:	1342	(03:10:37 Mon, 22-Dec-2025)
Peak Prefix Withdraw Rate per second:	33004	(22:34:11 Sun, 21-Dec-2025)
Prefix Count:	1066223
Updated Prefix Count:	591192
Stable Prefix Count:	475031
Origin AS Count:	77650
Updated Origin AS Count:	54888
Stable Origin AS Count:	22762
Unique Path Count:	500696
Updated Path Count:	324186
Stable Path Count:	176510

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.