The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 02 January 2026 06:19 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	5413	508471	6.91%	97	5241.97	WAVENET-AS5413, GB
2	16509	338596	4.60%	14218	23.81	AMAZON-02, US
3	8151	151922	2.06%	12756	11.91	UNINET, MX
4	12252	123669	1.68%	703	175.92	America Movil Peru S.A.C., PE
5	7821	71964	0.98%	17	4233.18	ZAYO-MN, US
6	15766	57420	0.78%	15	3828.00	DOMICILIUM-AS, IM
7	335	55786	0.76%	224	249.04	DNIC-ASBLK-00306-00371, US
8	36903	55173	0.75%	1261	43.75	MT-MPLS, MA
9	18403	53878	0.73%	4594	11.73	FPT-AS-AP FPT Telecom Company, VN
10	4837	48924	0.66%	1031	47.45	CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN
11	10620	44675	0.61%	3434	13.01	Telmex Colombia S.A., CO
12	212477	36080	0.49%	144	250.56	ROYALE-AS, NL
13	39891	33753	0.46%	4969	6.79	ALJAWWALSTC-AS, SA
14	9829	32394	0.44%	1862	17.40	BSNL-NIB National Internet Backbone, IN
15	31148	27973	0.38%	554	50.49	FREENET_LLC, UA
16	9808	27950	0.38%	13534	2.07	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
17	197207	27218	0.37%	1031	26.40	MCCI-AS, IR
18	58224	27056	0.37%	1172	23.09	TCI, IR
19	13188	23783	0.32%	1607	14.80	TRIOLAN, UA
20	647	23653	0.32%	439	53.88	DNIC-ASBLK-00616-00665, US
21	37294	23271	0.32%	142	163.88	TNM, MW
22	2609	22909	0.31%	89	257.40	TN-BB-AS Tunisia BackBone AS, TN
23	36914	22292	0.30%	581	38.37	KENET-AS, KE
24	20473	21932	0.30%	1407	15.59	AS-VULTR, US
25	6147	21833	0.30%	1266	17.25	Telefonica del Peru S.A.A., PE
26	17561	21630	0.29%	3477	6.22	LCS-AS-AP LARUS Limited, HK
27	24532	20604	0.28%	53	388.75	INET-AS-ID PT. Inet Global Indo, ID
28	8452	20348	0.28%	1709	11.91	TE-AS TE-AS, EG
29	28227	20079	0.27%	46	436.50	NOVACIA TECNOLOGIA E TELECOMUNICACOES LTDA, BR
30	8369	19983	0.27%	121	165.15	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
31	3303	19558	0.27%	255	76.70	SWISSCOM Swisscom Switzerland Ltd, CH
32	8866	19207	0.26%	969	19.82	VIVACOM-AS BULGARIA, BG
33	55410	19094	0.26%	1177	16.22	VIL-AS-AP Vodafone Idea Ltd, IN
34	7552	18705	0.25%	4062	4.60	VIETEL-AS-AP Viettel Group, VN
35	11492	18204	0.25%	4691	3.88	CABLEONE, US
36	14754	17590	0.24%	474	37.11	TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA, GT
37	44244	17582	0.24%	745	23.60	IRANCELL-AS, IR
38	328608	17204	0.23%	552	31.17	Africa-on-Cloud-AS, ZA
39	136255	16794	0.23%	125	134.35	TIMCL-AS-AP Telecom International Myanmar Co., Ltd, MM
40	24186	16535	0.22%	526	31.44	RAILTEL-AS-IN RailTel Corporation of India Ltd, IN
41	15399	16110	0.22%	577	27.92	WANANCHI-, KE
42	8613	15787	0.21%	3	5262.33	WAVENET-AS8613, GB
43	45899	15494	0.21%	3335	4.65	VNPT-AS-VN VNPT Corp, VN
44	40138	15431	0.21%	5	3086.20	MDNET, US
45	27715	14986	0.20%	243	61.67	Locaweb Servicos de Internet SA, BR
46	10429	14721	0.20%	172	85.59	TELEFONICA BRASIL S.A, BR
47	6503	14681	0.20%	730	20.11	Axtel, S.A.B. de C.V., MX
48	9009	14568	0.20%	4011	3.63	M247, RO
49	42337	14464	0.20%	693	20.87	RESPINA-AS, IR
50	36992	14451	0.20%	1852	7.80	ETISALAT-MISR, EG
Total		2316385	31.47%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	208907	8570.0	0.12%	1	8570	RISING-BRIDGE-TECHNOLOGY, GB
2	149038	7116.0	0.19%	2	14232	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	27892	5399.0	0.07%	1	5399	Universidad del Zulia, VE
4	197320	5278.0	0.07%	1	5278	NPA-AS, GB
5	8613	5262.3	0.21%	3	15787	WAVENET-AS8613, GB
6	41383	5261.0	0.14%	8	10522	WOLASN, GB
7	206467	5256.0	0.07%	3	5256	PROTECH-COMMS, GB
8	5413	5242.0	6.91%	97	508471	WAVENET-AS5413, GB
9	15766	5220.0	0.78%	15	57420	DOMICILIUM-AS, IM
10	56644	5196.0	0.07%	2	5196	SYNFS-AS, GB
11	265566	4797.0	0.07%	3	4797	TELESISTEMAS PENINSULARES SA DE CV, MX
12	213812	4482.5	0.12%	2	8965	ALFATEH, SY
13	7821	4233.2	0.98%	17	71964	ZAYO-MN, US
14	7954	4142.3	0.17%	3	12427	IMMENSE-NETWORKS, US
15	271217	3582.5	0.10%	4	7165	Nova Info Internet e Telecomunicacoes LTDA, BR
16	29469	3509.0	0.05%	1	3509	GTU Khmelnitsky, Ukraine, UA
17	8791	3501.0	0.14%	3	10503	FOEHN, GB
18	40138	3086.2	0.21%	5	15431	MDNET, US
19	51897	3030.0	0.04%	1	3030	MIHAN, IR
20	212274	2813.0	0.04%	1	2813	ELTRAKSA-AS, GR
21	12357	2522.2	0.17%	17	12611	COMUNITEL SPAIN, ES
22	57670	2324.5	0.19%	6	13947	ASOPENWAY, UA
23	136867	2163.3	0.09%	3	6490	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
24	41538	2129.0	0.03%	2	2129	INSPIRED-AS, GB
25	33764	1929.0	0.05%	3	3858	AFRINIC-ZA-JNB-AS, MU
26	21570	1887.0	0.03%	94	1887	ACI-1, CA
27	150512	1760.5	0.05%	2	3521	IDNIC-MASKOMINDONESIARAYA-AS-ID PT Maskom Indonesia Raya, ID
28	13341	1709.5	0.09%	5	6838	TRANQUILITY, US
29	329613	1605.0	0.02%	1	1605	Iris-Smart-Technologies, NG
30	136501	1514.8	0.10%	20	7574	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
31	200070	1444.0	0.02%	4	1444	CZNIC-AS2, CZ
32	54689	1336.0	0.02%	1	1336	UC-WILLIAMSBURG-ASN, US
33	396982	1329.0	0.04%	3320	2658	GOOGLE-CLOUD-PLATFORM, US
34	29874	1325.0	0.07%	4	5300	CAMBRI-AS1, US
35	17794	1216.3	0.05%	13	3649	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
36	265112	1201.4	0.11%	7	8410	DIGITO TELECOMUNICACOES E INFORMATICA LTDA, BR
37	329104	1198.0	0.02%	1	1198	AL14-AS, RW
38	136225	1183.7	0.05%	3	3551	SMARTTELECOM-AS-AP Smart Telecom, PK
39	265046	1161.3	0.05%	3	3484	NET-MAIS INFORMATICA, BR
40	57285	1161.0	0.02%	1	1161	UKRINFOSYSTEMS-AS, UA
41	399889	1130.5	0.03%	2	2261	NET-FRONT-001, US
42	29382	1111.5	0.03%	2	2223	UKRINFOSYSTEMS-AS, UA
43	137258	1081.0	0.01%	1	1081	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
44	28657	1076.7	0.04%	3	3230	MD Brasil - Tecnologia da Informacao Ltda, BR
45	329627	1067.3	0.04%	3	3202	Wingu-Tanzania, TZ
46	204318	1034.0	0.01%	1	1034	BGPTOOLS-QA, GB
47	395327	962.0	0.01%	1	962	BAYFEDCU, US
48	264126	945.0	0.04%	6	2835	SIX INTERNET LTDA, BR
49	12654	912.8	0.17%	22	12779	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
50	8978	880.5	0.02%
Total		137278.8	12.22%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12424	0.16%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	11298	0.15%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10929	0.14%	16509 -- AMAZON-02, US
4	55.67.56.0/24	10329	0.13%	335 -- DNIC-ASBLK-00306-00371, US
5	55.27.56.0/24	10322	0.13%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.217.0/24	10294	0.13%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.56.0/24	10243	0.13%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.57.0/24	10228	0.13%	335 -- DNIC-ASBLK-00306-00371, US
9	44.31.52.0/24	8570	0.11%	208907 -- RISING-BRIDGE-TECHNOLOGY, GB
10	186.83.117.0/24	8337	0.11%	10620 -- Telmex Colombia S.A., CO
11	130.137.108.0/24	7890	0.10%	16509 -- AMAZON-02, US
12	173.82.125.0/24	7778	0.10%	16509 -- AMAZON-02, US
13	130.137.230.0/24	7686	0.10%	16509 -- AMAZON-02, US
14	130.137.12.0/24	7658	0.10%	16509 -- AMAZON-02, US
15	186.251.129.0/24	7380	0.10%	53225 -- IPGLOBE INTERNET LTDA, BR
16	143.0.241.0/24	7151	0.09%	271217 -- Nova Info Internet e Telecomunicacoes LTDA, BR
17	103.177.87.0/24	7120	0.09%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
18	103.177.86.0/24	7112	0.09%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
19	173.82.66.0/24	6894	0.09%	16509 -- AMAZON-02, US
20	130.137.219.0/24	6846	0.09%	16509 -- AMAZON-02, US
21	199.47.232.0/22	6829	0.09%	13341 -- TRANQUILITY, US
22	130.137.80.0/24	6761	0.09%	16509 -- AMAZON-02, US
23	84.205.66.0/24	6740	0.09%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
24	130.137.79.0/24	6703	0.09%	16509 -- AMAZON-02, US
25	195.114.123.0/24	6642	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
26	130.137.118.0/24	6633	0.09%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
27	193.105.156.0/24	6576	0.09%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
28	103.104.136.0/24	6481	0.08%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
29	195.114.122.0/24	6469	0.08%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
30	173.82.108.0/24	6459	0.08%	16509 -- AMAZON-02, US
31	173.82.63.0/24	6457	0.08%	16509 -- AMAZON-02, US
32	173.82.67.0/24	6413	0.08%	16509 -- AMAZON-02, US
33	130.137.28.0/24	6266	0.08%	16509 -- AMAZON-02, US
34	177.46.36.0/24	6171	0.08%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
35	130.137.124.0/24	6164	0.08%	16509 -- AMAZON-02, US
36	130.137.227.0/24	6102	0.08%	16509 -- AMAZON-02, US
37	130.137.99.0/24	6090	0.08%	16509 -- AMAZON-02, US
38	130.137.105.0/24	6081	0.08%	16509 -- AMAZON-02, US
39	130.137.140.0/24	6064	0.08%	16509 -- AMAZON-02, US
40	130.137.47.0/24	6058	0.08%	16509 -- AMAZON-02, US
41	173.82.129.0/24	6058	0.08%	16509 -- AMAZON-02, US
42	130.137.111.0/24	6050	0.08%	16509 -- AMAZON-02, US
43	130.137.26.0/24	6033	0.08%	16509 -- AMAZON-02, US
44	130.137.150.0/24	6026	0.08%	16509 -- AMAZON-02, US
45	130.137.130.0/24	6012	0.08%	16509 -- AMAZON-02, US
46	130.137.89.0/24	5998	0.08%	14618 -- AMAZON-AES, US
47	130.137.127.0/24	5984	0.08%	16509 -- AMAZON-02, US
48	130.137.16.0/24	5975	0.08%	16509 -- AMAZON-02, US
49	130.137.90.0/24	5924	0.08%	16509 -- AMAZON-02, US
50	130.137.78.0/24	5914	0.08%	16509 -- AMAZON-02, US
Total		364622	4.74%

14 Day BGP Profile: 19-December-2025 00:00 - 1-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16570785
Number of Prefix Updates:	7363797
Number of Prefix Withdrawals:	291401
Average Prefixes per BGP Update:	0.46
Average BGP Update Messages per second:	13.70
Average Prefix Updates per second:	6.33
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:	32756	(22:34:11 Sun, 21-Dec-2025)
Prefix Count:	1066188
Updated Prefix Count:	613013
Stable Prefix Count:	453175
Origin AS Count:	77672
Updated Origin AS Count:	55740
Stable Origin AS Count:	21932
Unique Path Count:	507215
Updated Path Count:	335649
Stable Path Count:	171566

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.