The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 06 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	509084	7.34%	97	5248.29	WAVENET-AS5413, GB
2	16509	367442	5.30%	14184	25.91	AMAZON-02, US
3	8151	157045	2.26%	12707	12.36	UNINET, MX
4	12252	123591	1.78%	702	176.06	America Movil Peru S.A.C., PE
5	7821	71937	1.04%	17	4231.59	ZAYO-MN, US
6	6648	71642	1.03%	269	266.33	BAYAN-TELECOMMUNICATIONS Bayan Telecommunications, Inc., PH
7	15766	58127	0.84%	15	3875.13	DOMICILIUM-AS, IM
8	335	54786	0.79%	224	244.58	DNIC-ASBLK-00306-00371, US
9	9808	53495	0.77%	13535	3.95	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
10	18403	51785	0.75%	4596	11.27	FPT-AS-AP FPT Telecom Company, VN
11	4837	48687	0.70%	1035	47.04	CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN
12	10620	48518	0.70%	3434	14.13	Telmex Colombia S.A., CO
13	212477	45396	0.65%	144	315.25	ROYALE-AS, NL
14	36903	41945	0.60%	1261	33.26	MT-MPLS, MA
15	58224	31548	0.45%	1173	26.90	TCI, IR
16	197207	30722	0.44%	1105	27.80	MCCI-AS, IR
17	9829	29080	0.42%	1862	15.62	BSNL-NIB National Internet Backbone, IN
18	20473	27459	0.40%	1412	19.45	AS-VULTR, US
19	28227	26948	0.39%	46	585.83	NOVACIA TECNOLOGIA E TELECOMUNICACOES LTDA, BR
20	13188	26267	0.38%	1607	16.35	TRIOLAN, UA
21	24186	25318	0.36%	657	38.54	RAILTEL-AS-IN RailTel Corporation of India Ltd, IN
22	55410	25060	0.36%	1177	21.29	VIL-AS-AP Vodafone Idea Ltd, IN
23	401696	24277	0.35%	235	103.31	COGNETCLOUD, US
24	44244	23912	0.34%	723	33.07	IRANCELL-AS, IR
25	8452	23384	0.34%	1716	13.63	TE-AS TE-AS, EG
26	42337	23162	0.33%	697	33.23	RESPINA-AS, IR
27	31148	22840	0.33%	554	41.23	FREENET_LLC, UA
28	2609	22784	0.33%	86	264.93	TN-BB-AS Tunisia BackBone AS, TN
29	6503	22192	0.32%	726	30.57	Axtel, S.A.B. de C.V., MX
30	36914	21931	0.32%	580	37.81	KENET-AS, KE
31	17561	20680	0.30%	3471	5.96	LCS-AS-AP LARUS Limited, HK
32	647	20639	0.30%	440	46.91	DNIC-ASBLK-00616-00665, US
33	8369	19837	0.29%	121	163.94	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
34	37294	18006	0.26%	140	128.61	TNM, MW
35	3303	17558	0.25%	255	68.85	SWISSCOM Swisscom Switzerland Ltd, CH
36	149038	16526	0.24%	2	8263.00	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
37	47065	16168	0.23%	18	898.22	PEERING-RESEARCH-TESTBED-USC-UFMG-AS47065, US
38	8613	16094	0.23%	3	5364.67	WAVENET-AS8613, GB
39	40138	15517	0.22%	5	3103.40	MDNET, US
40	6147	15148	0.22%	1262	12.00	Telefonica del Peru S.A.A., PE
41	27715	14821	0.21%	243	60.99	Locaweb Servicos de Internet SA, BR
42	56046	14314	0.21%	3403	4.21	CMNET-JIANGSU-AP China Mobile communications corporation, CN
43	266207	14262	0.21%	21	679.14	Onitel Telecomunicacoes, BR
44	38444	14242	0.21%	64	222.53	SUPERBROADBANDNETWORK-AS-AP Super Broadband Network, TH
45	12357	14048	0.20%	17	826.35	COMUNITEL SPAIN, ES
46	45271	13854	0.20%	395	35.07	VIL-AS-AP Vodafone Idea Ltd, IN
47	328608	13652	0.20%	565	24.16	Africa-on-Cloud-AS, ZA
48	45899	13521	0.19%	3334	4.06	VNPT-AS-VN VNPT Corp, VN
49	136255	13266	0.19%	124	106.98	TIMCL-AS-AP Telecom International Myanmar Co., Ltd, MM
50	14754	13235	0.19%	475	27.86	TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA, GT
Total		2425752	34.96%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	208907	10808.0	0.16%	1	10808	RISING-BRIDGE-TECHNOLOGY, GB
2	149038	8263.0	0.24%	2	16526	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	13341	6855.0	0.10%	5	6855	TRANQUILITY, US
4	265566	6593.0	0.10%	3	6593	TELESISTEMAS PENINSULARES SA DE CV, MX
5	197320	5373.0	0.08%	1	5373	NPA-AS, GB
6	8613	5364.7	0.23%	3	16094	WAVENET-AS8613, GB
7	41383	5352.0	0.15%	8	10704	WOLASN, GB
8	15766	5284.3	0.84%	15	58127	DOMICILIUM-AS, IM
9	56644	5251.0	0.08%	2	5251	SYNFS-AS, GB
10	5413	5248.3	7.34%	97	509084	WAVENET-AS5413, GB
11	50340	4884.5	0.14%	393	9769	SELECTEL-MSK, RU
12	213812	4741.5	0.14%	2	9483	ALFATEH, SY
13	7821	4231.6	1.04%	17	71937	ZAYO-MN, US
14	7954	4140.3	0.18%	3	12421	IMMENSE-NETWORKS, US
15	8791	3564.0	0.15%	3	10692	FOEHN, GB
16	29469	3515.0	0.05%	1	3515	GTU Khmelnitsky, Ukraine, UA
17	12357	3512.0	0.20%	17	14048	COMUNITEL SPAIN, ES
18	29052	3489.0	0.05%	1	3489	LYCOS-AS Lykos group is among the pioneers that shape the printing market, AT
19	212274	3434.0	0.05%	1	3434	ELTRAKSA-AS, GR
20	136867	3244.0	0.09%	3	6488	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
21	269518	3167.0	0.05%	6	3167	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
22	265046	3160.5	0.09%	3	6321	NET-MAIS INFORMATICA, BR
23	51897	3108.0	0.04%	1	3108	MIHAN, IR
24	40138	3103.4	0.22%	5	15517	MDNET, US
25	271217	2493.3	0.11%	4	7480	Nova Info Internet e Telecomunicacoes LTDA, BR
26	27892	2168.0	0.03%	1	2168	Universidad del Zulia, VE
27	57670	2138.0	0.18%	6	12828	ASOPENWAY, UA
28	21074	2080.0	0.06%	2	4160	ASN-AT-VR22, IT
29	150512	2070.5	0.06%	2	4141	IDNIC-MASKOMINDONESIARAYA-AS-ID PT Maskom Indonesia Raya, ID
30	41538	2027.0	0.03%	2	2027	INSPIRED-AS, GB
31	329613	1943.0	0.03%	1	1943	Iris-Smart-Technologies, NG
32	21570	1855.0	0.03%	94	1855	ACI-1, CA
33	206467	1784.0	0.08%	3	5352	PROTECH-COMMS, GB
34	328516	1782.0	0.03%	1	1782	Premium-Pension-Limited-AS, NG
35	54690	1718.0	0.02%	9	1718	CLU, US
36	136501	1625.2	0.12%	20	8126	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
37	198918	1468.0	0.11%	8	7340	MST-ZELDOL-AS MST Moskva Zeldol, RU
38	329104	1407.0	0.02%	1	1407	AL14-AS, RW
39	2603	1362.5	0.04%	10	2725	NORDUNET, DK
40	29874	1340.2	0.08%	4	5361	CAMBRI-AS1, US
41	33764	1308.5	0.04%	3	2617	AFRINIC-ZA-JNB-AS, MU
42	329627	1276.0	0.06%	3	3828	Wingu-Tanzania, TZ
43	399889	1229.5	0.04%	2	2459	NET-FRONT-001, US
44	151526	1151.0	0.02%	1	1151	IDNIC-ONETERNITY-AS-ID PT One Network Eternity, ID
45	57285	1137.0	0.02%	1	1137	UKRINFOSYSTEMS-AS, UA
46	28657	1060.3	0.05%	3	3181	MD Brasil - Tecnologia da Informacao Ltda, BR
47	29382	1059.5	0.03%	2	2119	UKRINFOSYSTEMS-AS, UA
48	137258	1048.0	0.02%	1	1048	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
49	395327	1042.0	0.02%	1	1042	BAYFEDCU, US
50	8978	1038.0	0.03%
Total		156298.6	13.17%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12417	0.17%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	11047	0.15%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10889	0.15%	16509 -- AMAZON-02, US
4	44.31.52.0/24	10808	0.15%	208907 -- RISING-BRIDGE-TECHNOLOGY, GB
5	55.67.56.0/24	10137	0.14%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.56.0/24	10125	0.14%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.57.0/24	10120	0.14%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10103	0.14%	335 -- DNIC-ASBLK-00306-00371, US
9	55.27.217.0/24	10094	0.14%	335 -- DNIC-ASBLK-00306-00371, US
10	103.177.87.0/24	8305	0.11%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
11	186.83.117.0/24	8290	0.11%	10620 -- Telmex Colombia S.A., CO
12	103.177.86.0/24	8221	0.11%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
13	130.137.108.0/24	8009	0.11%	16509 -- AMAZON-02, US
14	173.82.125.0/24	7845	0.11%	16509 -- AMAZON-02, US
15	130.137.12.0/24	7742	0.11%	16509 -- AMAZON-02, US
16	130.137.230.0/24	7689	0.11%	16509 -- AMAZON-02, US
17	186.251.129.0/24	7669	0.11%	53225 -- IPGLOBE INTERNET LTDA, BR
18	143.0.241.0/24	7469	0.10%	271217 -- Nova Info Internet e Telecomunicacoes LTDA, BR
19	173.82.66.0/24	6881	0.10%	16509 -- AMAZON-02, US
20	130.137.219.0/24	6881	0.10%	16509 -- AMAZON-02, US
21	199.47.232.0/22	6855	0.09%	13341 -- TRANQUILITY, US
22	84.205.66.0/24	6751	0.09%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
23	130.137.79.0/24	6703	0.09%	16509 -- AMAZON-02, US
24	130.137.80.0/24	6672	0.09%	16509 -- AMAZON-02, US
25	130.137.118.0/24	6653	0.09%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
26	45.172.92.0/22	6593	0.09%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
27	173.82.63.0/24	6555	0.09%	16509 -- AMAZON-02, US
28	195.114.123.0/24	6551	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	173.82.108.0/24	6511	0.09%	16509 -- AMAZON-02, US
30	193.105.156.0/24	6508	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
31	173.82.67.0/24	6497	0.09%	16509 -- AMAZON-02, US
32	195.114.122.0/24	6492	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
33	103.104.136.0/24	6486	0.09%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
34	170.150.53.0/24	6320	0.09%	265046 -- NET-MAIS INFORMATICA, BR
35	130.137.28.0/24	6278	0.09%	16509 -- AMAZON-02, US
36	130.137.124.0/24	6207	0.09%	16509 -- AMAZON-02, US
37	177.46.36.0/24	6195	0.09%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
38	130.137.47.0/24	6128	0.08%	16509 -- AMAZON-02, US
39	130.137.105.0/24	6128	0.08%	16509 -- AMAZON-02, US
40	130.137.26.0/24	6103	0.08%	16509 -- AMAZON-02, US
41	173.82.129.0/24	6100	0.08%	16509 -- AMAZON-02, US
42	130.137.227.0/24	6083	0.08%	16509 -- AMAZON-02, US
43	130.137.130.0/24	6070	0.08%	16509 -- AMAZON-02, US
44	130.137.90.0/24	6060	0.08%	16509 -- AMAZON-02, US
45	130.137.111.0/24	6048	0.08%	16509 -- AMAZON-02, US
46	130.137.150.0/24	6045	0.08%	16509 -- AMAZON-02, US
47	130.137.127.0/24	6033	0.08%	16509 -- AMAZON-02, US
48	130.137.89.0/24	6031	0.08%	14618 -- AMAZON-AES, US
49	130.137.140.0/24	6031	0.08%	16509 -- AMAZON-02, US
50	130.137.16.0/24	6013	0.08%	16509 -- AMAZON-02, US
Total		370441	5.07%

14 Day BGP Profile: 23-December-2025 00:00 - 5-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	15218690
Number of Prefix Updates:	6937917
Number of Prefix Withdrawals:	289987
Average Prefixes per BGP Update:	0.47
Average BGP Update Messages per second:	12.58
Average Prefix Updates per second:	5.98
Peak BGP Update Message Rate per second:	71547	(11:15:45 Tue, 23-Dec-2025)
Peak Prefix Update Rate per second:	618	(22:12:34 Wed, 24-Dec-2025)
Peak Prefix Withdraw Rate per second:	34242	(11:15:45 Tue, 23-Dec-2025)
Prefix Count:	1064694
Updated Prefix Count:	552723
Stable Prefix Count:	511971
Origin AS Count:	77632
Updated Origin AS Count:	52017
Stable Origin AS Count:	25615
Unique Path Count:	482226
Updated Path Count:	298804
Stable Path Count:	183422

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.