The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 13 December 2025 06:23 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	284300	2.71%	14389	19.76	AMAZON-02, US
2	5413	251234	2.39%	97	2590.04	WAVENET-AS5413, GB
3	8151	170435	1.62%	12805	13.31	UNINET, MX
4	4538	164733	1.57%	5043	32.67	ERX-CERNET-BKB China Education and Research Network Center, CN
5	51375	77718	0.74%	388	200.30	VIVA, BH
6	36903	72142	0.69%	1250	57.71	MT-MPLS, MA
7	7821	71727	0.68%	17	4219.24	ZAYO-MN, US
8	39891	67248	0.64%	4833	13.91	ALJAWWALSTC-AS, SA
9	10620	66108	0.63%	3459	19.11	Telmex Colombia S.A., CO
10	9198	65504	0.62%	1030	63.60	KAZTELECOM-AS, KZ
11	13188	53357	0.51%	1607	33.20	TRIOLAN, UA
12	335	53293	0.51%	224	237.92	DNIC-ASBLK-00306-00371, US
13	7552	52183	0.50%	4016	12.99	VIETEL-AS-AP Viettel Group, VN
14	4181	50868	0.48%	1197	42.50	TDS-AS, US
15	8796	47676	0.45%	482	98.91	FD-298-8796, US
16	45899	45474	0.43%	3330	13.66	VNPT-AS-VN VNPT Corp, VN
17	9829	45304	0.43%	1862	24.33	BSNL-NIB National Internet Backbone, IN
18	15766	42991	0.41%	15	2866.07	DOMICILIUM-AS, IM
19	42337	41730	0.40%	688	60.65	RESPINA-AS, IR
20	17561	40069	0.38%	2884	13.89	LCS-AS-AP LARUS Limited, HK
21	6412	39000	0.37%	253	154.15	KW KEMS Block-A, Floor 7, Souq Al-Kabeer Kuwait City, State of Kuwait P O Box 3623, Safat 13037, KW
22	212477	37467	0.36%	142	263.85	ROYALE-AS, NL
23	5371	36646	0.35%	300	122.15	DNIC-ASBLK-05120-05376, US
24	40065	36607	0.35%	569	64.34	CNSERVERS, US
25	9808	36265	0.35%	13628	2.66	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
26	647	35851	0.34%	431	83.18	DNIC-ASBLK-00616-00665, US
27	7713	34047	0.32%	3733	9.12	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
28	9009	32298	0.31%	4070	7.94	M247, RO
29	21859	30271	0.29%	1612	18.78	ZEN-ECN, US
30	58224	30208	0.29%	1171	25.80	TCI, IR
31	3303	30179	0.29%	255	118.35	SWISSCOM Swisscom Switzerland Ltd, CH
32	31148	29887	0.28%	555	53.85	FREENET_LLC, UA
33	9304	29661	0.28%	1883	15.75	HUTCHISON-AS-AP HGC Global Communications Limited, HK
34	17488	28720	0.27%	1274	22.54	HATHWAY-NET-AP Hathway IP Over Cable Internet, IN
35	20473	28304	0.27%	1457	19.43	AS-VULTR, US
36	8452	26894	0.26%	1709	15.74	TE-AS TE-AS, EG
37	5972	26745	0.25%	1425	18.77	DNIC-ASBLK-05800-06055, US
38	398101	26395	0.25%	240	109.98	GO-DADDY-COM-LLC, US
39	197207	26372	0.25%	992	26.58	MCCI-AS, IR
40	37294	26348	0.25%	134	196.63	TNM, MW
41	22773	25824	0.25%	4787	5.39	ASN-CXA-ALL-CCI-22773-RDC, US
42	36914	25521	0.24%	582	43.85	KENET-AS, KE
43	29091	25236	0.24%	90	280.40	IPNXng, NG
44	24835	24473	0.23%	1987	12.32	RAYA-AS, EG
45	29571	24443	0.23%	1072	22.80	ORANGE-COTE-IVOIRE, CI
46	22884	24089	0.23%	1064	22.64	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
47	36992	23901	0.23%	1687	14.17	ETISALAT-MISR, EG
48	7459	23220	0.22%	1526	15.22	GRANDECOM-AS1, US
49	37233	21711	0.21%	45	482.47	ORANGE-NIGER, NE
50	37069	20849	0.20%	1094	19.06	MOBINIL, EG
Total		2631526	25.05%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	13341	7004.0	0.07%	5	7004	TRANQUILITY, US
2	396950	5066.0	0.05%	1	5066	COMSTBARTH-AS, FR
3	7821	4219.2	0.68%	17	71727	ZAYO-MN, US
4	56644	4165.0	0.04%	2	4165	SYNFS-AS, GB
5	33764	4075.0	0.04%	3	4075	AFRINIC-ZA-JNB-AS, MU
6	208907	3834.0	0.04%	1	3834	RISING-BRIDGE-TECHNOLOGY, GB
7	7954	3691.0	0.11%	3	11073	IMMENSE-NETWORKS, US
8	29469	3448.0	0.03%	1	3448	GTU Khmelnitsky, Ukraine, UA
9	149038	3409.5	0.06%	2	6819	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
10	51897	3241.0	0.03%	1	3241	MIHAN, IR
11	265046	3135.5	0.06%	3	6271	NET-MAIS INFORMATICA, BR
12	214675	2900.0	0.03%	1	2900	STARLAMP Starlamp Network Project, JP
13	886	2897.0	0.03%	1	2897	SBH-IX-SERVICES, FR
14	15766	2866.1	0.41%	15	42991	DOMICILIUM-AS, IM
15	57670	2797.3	0.16%	6	16784	ASOPENWAY, UA
16	202174	2795.0	0.03%	1	2795	EMSP-AS, NO
17	5413	2590.0	2.39%	97	251234	WAVENET-AS5413, GB
18	214929	2436.5	0.05%	2	4873	LASTRESPONSE, AT
19	265566	2135.7	0.06%	3	6407	TELESISTEMAS PENINSULARES SA DE CV, MX
20	21570	1897.0	0.02%	94	1897	ACI-1, CA
21	269518	1863.5	0.04%	6	3727	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
22	12335	1822.7	0.05%	3	5468	TARIO, RU
23	136867	1714.3	0.05%	3	5143	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
24	27892	1579.0	0.02%	1	1579	Universidad del Zulia, VE
25	45720	1544.0	0.01%	2	1544	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
26	52852	1483.4	0.07%	5	7417	Last Mile Telecom, BR
27	28657	1453.7	0.04%	3	4361	MD Brasil - Tecnologia da Informacao Ltda, BR
28	395327	1447.0	0.01%	1	1447	BAYFEDCU, US
29	61850	1431.6	0.10%	7	10021	A2 TELECOMUNICACOES LTDA, BR
30	401017	1383.0	0.01%	1	1383	AAICE-ASN, US
31	329454	1318.0	0.01%	1	1318	Vitel-Wireless, NG
32	40138	1313.4	0.15%	12	15761	MDNET, US
33	147117	1240.0	0.02%	2	2480	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
34	213641	1148.0	0.01%	1	1148	AS213641, DE
35	207633	1101.5	0.02%	2	2203	NOSSPEED, TR
36	328811	1052.0	0.01%	1	1052	FCB-AS, MW
37	198918	1047.0	0.07%	8	7329	MST-ZELDOL-AS MST Moskva Zeldol, RU
38	150442	1035.0	0.01%	2	1035	BFSACD-AS-AP Bangladesh Fire Service and Civil Defense, BD
39	204318	1025.0	0.01%	1	1025	BGPTOOLS-QA, GB
40	202364	983.0	0.01%	4	983	GRIDH, GB
41	328300	976.0	0.01%	1	976	Malawi-Bank-AS, MW
42	37249	958.0	0.01%	5	958	CWHOUSE, NG
43	25048	943.4	0.04%	5	4717	DSNET DSNet, GB
44	136501	899.0	0.04%	20	4495	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
45	205605	892.0	0.01%	1	892	ID-PROCESSING, AM
46	12654	889.4	0.13%	22	13341	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
47	264534	881.0	0.01%	1	881	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
48	45763	864.7	0.02%	135	2594	OPTICOMMCOPTYLTD-AS-AP Opticomm Co Pty Ltd, AU
49	268116	862.2	0.05%	6	5173	Sim Internet LTDA., BR
50	197320	852.0	0.01%
Total		104605.6	5.44%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11071	0.10%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	10931	0.10%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10489	0.10%	16509 -- AMAZON-02, US
4	55.74.57.0/24	10278	0.10%	335 -- DNIC-ASBLK-00306-00371, US
5	55.74.56.0/24	10257	0.09%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.217.0/24	10245	0.09%	335 -- DNIC-ASBLK-00306-00371, US
7	55.67.56.0/24	10218	0.09%	335 -- DNIC-ASBLK-00306-00371, US
8	55.27.56.0/24	10215	0.09%	335 -- DNIC-ASBLK-00306-00371, US
9	186.83.117.0/24	8265	0.08%	10620 -- Telmex Colombia S.A., CO
10	130.137.108.0/24	8234	0.08%	16509 -- AMAZON-02, US
11	173.82.125.0/24	8205	0.08%	16509 -- AMAZON-02, US
12	130.137.12.0/24	8082	0.07%	16509 -- AMAZON-02, US
13	130.137.230.0/24	7543	0.07%	16509 -- AMAZON-02, US
14	177.86.122.0/23	7353	0.07%	52852 -- Last Mile Telecom, BR
15	173.82.66.0/24	7230	0.07%	16509 -- AMAZON-02, US
16	130.137.219.0/24	7182	0.07%	16509 -- AMAZON-02, US
17	130.137.118.0/24	7116	0.07%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
18	130.137.80.0/24	7088	0.07%	16509 -- AMAZON-02, US
19	199.47.232.0/22	7004	0.06%	13341 -- TRANQUILITY, US
20	130.137.79.0/24	6879	0.06%	16509 -- AMAZON-02, US
21	84.205.66.0/24	6872	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
22	37.252.60.0/22	6678	0.06%	5413 -- WAVENET-AS5413, GB
23	130.137.150.0/24	6651	0.06%	16509 -- AMAZON-02, US
24	173.82.67.0/24	6635	0.06%	16509 -- AMAZON-02, US
25	5.252.36.0/22	6620	0.06%	5413 -- WAVENET-AS5413, GB
26	195.114.122.0/24	6618	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
27	5.22.224.0/21	6616	0.06%	5413 -- WAVENET-AS5413, GB
28	193.105.156.0/24	6603	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	130.137.124.0/24	6592	0.06%	16509 -- AMAZON-02, US
30	173.82.63.0/24	6585	0.06%	16509 -- AMAZON-02, US
31	45.83.76.0/24	6580	0.06%	5413 -- WAVENET-AS5413, GB
32	45.83.76.0/22	6578	0.06%	5413 -- WAVENET-AS5413, GB
33	45.132.148.0/23	6546	0.06%	5413 -- WAVENET-AS5413, GB
34	195.114.123.0/24	6538	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
35	130.137.28.0/24	6535	0.06%	16509 -- AMAZON-02, US
36	173.82.108.0/24	6524	0.06%	16509 -- AMAZON-02, US
37	130.137.127.0/24	6513	0.06%	16509 -- AMAZON-02, US
38	46.31.71.0/24	6503	0.06%	5413 -- WAVENET-AS5413, GB
39	130.137.16.0/24	6497	0.06%	16509 -- AMAZON-02, US
40	130.137.111.0/24	6476	0.06%	16509 -- AMAZON-02, US
41	173.82.129.0/24	6451	0.06%	16509 -- AMAZON-02, US
42	130.137.227.0/24	6443	0.06%	16509 -- AMAZON-02, US
43	130.137.47.0/24	6414	0.06%	16509 -- AMAZON-02, US
44	130.137.78.0/24	6407	0.06%	16509 -- AMAZON-02, US
45	130.137.147.0/24	6403	0.06%	16509 -- AMAZON-02, US
46	130.137.90.0/24	6383	0.06%	16509 -- AMAZON-02, US
47	130.137.26.0/24	6379	0.06%	16509 -- AMAZON-02, US
48	130.137.85.0/24	6377	0.06%	16509 -- AMAZON-02, US
49	62.44.64.0/19	6369	0.06%	5413 -- WAVENET-AS5413, GB
50	45.172.92.0/22	6365	0.06%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
Total		369636	3.41%

14 Day BGP Profile: 29-November-2025 00:00 - 12-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	24780667
Number of Prefix Updates:	10510136
Number of Prefix Withdrawals:	302856
Average Prefixes per BGP Update:	0.44
Average BGP Update Messages per second:	20.49
Average Prefix Updates per second:	8.94
Peak BGP Update Message Rate per second:	41329	(08:04:30 Sun, 30-Nov-2025)
Peak Prefix Update Rate per second:	1341	(00:36:56 Fri, 12-Dec-2025)
Peak Prefix Withdraw Rate per second:	25755	(11:31:16 Wed, 10-Dec-2025)
Prefix Count:	1064579
Updated Prefix Count:	773836
Stable Prefix Count:	290743
Origin AS Count:	77702
Updated Origin AS Count:	63558
Stable Origin AS Count:	14144
Unique Path Count:	585765
Updated Path Count:	434999
Stable Path Count:	150766

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.