The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 05 December 2025 06:25 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	321763	2.63%	14379	22.38	AMAZON-02, US
2	5413	264097	2.16%	98	2694.87	WAVENET-AS5413, GB
3	8151	219918	1.80%	12756	17.24	UNINET, MX
4	4538	162313	1.33%	5031	32.26	ERX-CERNET-BKB China Education and Research Network Center, CN
5	42337	95834	0.78%	689	139.09	RESPINA-AS, IR
6	10620	75856	0.62%	3459	21.93	Telmex Colombia S.A., CO
7	7821	72915	0.60%	17	4289.12	ZAYO-MN, US
8	39891	69725	0.57%	4833	14.43	ALJAWWALSTC-AS, SA
9	18101	68881	0.56%	683	100.85	RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI, IN
10	9198	63488	0.52%	1024	62.00	KAZTELECOM-AS, KZ
11	45899	62444	0.51%	3328	18.76	VNPT-AS-VN VNPT Corp, VN
12	335	59625	0.49%	224	266.18	DNIC-ASBLK-00306-00371, US
13	4181	55366	0.45%	1195	46.33	TDS-AS, US
14	58224	54221	0.44%	1175	46.15	TCI, IR
15	36903	53029	0.43%	1250	42.42	MT-MPLS, MA
16	22773	51386	0.42%	4788	10.73	ASN-CXA-ALL-CCI-22773-RDC, US
17	13188	51117	0.42%	1607	31.81	TRIOLAN, UA
18	197207	50010	0.41%	972	51.45	MCCI-AS, IR
19	8796	48573	0.40%	501	96.95	FD-298-8796, US
20	135031	46354	0.38%	59	785.66	RNPL-AS-AP RI Networks Pvt. Ltd., IN
21	15766	43649	0.36%	15	2909.93	DOMICILIUM-AS, IM
22	7552	43431	0.35%	4013	10.82	VIETEL-AS-AP Viettel Group, VN
23	9829	42778	0.35%	1864	22.95	BSNL-NIB National Internet Backbone, IN
24	36914	40067	0.33%	584	68.61	KENET-AS, KE
25	40065	38888	0.32%	567	68.59	CNSERVERS, US
26	212477	36514	0.30%	142	257.14	ROYALE-AS, NL
27	17561	33884	0.28%	2896	11.70	LCS-AS-AP LARUS Limited, HK
28	9009	32992	0.27%	4093	8.06	M247, RO
29	21859	32848	0.27%	1600	20.53	ZEN-ECN, US
30	20940	32421	0.26%	4007	8.09	AKAMAI-ASN1, NL
31	647	32399	0.26%	429	75.52	DNIC-ASBLK-00616-00665, US
32	36352	31781	0.26%	2924	10.87	AS-COLOCROSSING, US
33	8452	31407	0.26%	2128	14.76	TE-AS TE-AS, EG
34	24835	29878	0.24%	1986	15.04	RAYA-AS, EG
35	11492	28864	0.24%	4789	6.03	CABLEONE, US
36	9808	28819	0.24%	13645	2.11	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
37	31148	28129	0.23%	555	50.68	FREENET_LLC, UA
38	20473	28009	0.23%	1447	19.36	AS-VULTR, US
39	398101	26556	0.22%	240	110.65	GO-DADDY-COM-LLC, US
40	56	26537	0.22%	983	27.00	DNIC-AS-00056, US
41	12389	25909	0.21%	3179	8.15	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
42	16625	25632	0.21%	3016	8.50	AKAMAI-AS, US
43	7713	25156	0.21%	3732	6.74	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
44	11830	24727	0.20%	1992	12.41	Instituto Costarricense de Electricidad y Telecom., CR
45	13999	24359	0.20%	2528	9.64	Mega Cable, S.A. de C.V., MX
46	7029	24134	0.20%	2538	9.51	WINDSTREAM, US
47	29091	24111	0.20%	90	267.90	IPNXng, NG
48	37294	23376	0.19%	134	174.45	TNM, MW
49	12479	23197	0.19%	7421	3.13	UNI2-AS, ES
50	37233	22985	0.19%	45	510.78	ORANGE-NIGER, NE
Total		2860352	23.41%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	208907	6904.0	0.06%	1	6904	RISING-BRIDGE-TECHNOLOGY, GB
2	396950	6880.0	0.06%	1	6880	COMSTBARTH-AS, FR
3	33764	4474.0	0.04%	3	4474	AFRINIC-ZA-JNB-AS, MU
4	7821	4289.1	0.60%	17	72915	ZAYO-MN, US
5	56644	4277.0	0.03%	2	4277	SYNFS-AS, GB
6	7954	3838.0	0.09%	3	11514	IMMENSE-NETWORKS, US
7	886	3719.0	0.03%	1	3719	SBH-IX-SERVICES, FR
8	52852	3493.0	0.06%	5	6986	Last Mile Telecom, BR
9	29469	3479.0	0.03%	1	3479	GTU Khmelnitsky, Ukraine, UA
10	45720	3306.0	0.03%	2	3306	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
11	15766	2909.9	0.36%	15	43649	DOMICILIUM-AS, IM
12	5413	2694.9	2.16%	98	264097	WAVENET-AS5413, GB
13	213641	2476.0	0.02%	1	2476	AS213641, DE
14	25048	2422.7	0.06%	5	7268	DSNET DSNet, GB
15	264534	2290.0	0.02%	1	2290	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
16	269518	2163.5	0.04%	6	4327	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
17	149038	2107.5	0.03%	2	4215	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
18	329574	2046.0	0.02%	1	2046	Sierra_Leone_Research_and_Education_Netw, SL
19	136867	1877.0	0.05%	3	5631	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
20	21570	1860.0	0.02%	94	1860	ACI-1, CA
21	13341	1803.2	0.06%	5	7213	TRANQUILITY, US
22	27892	1665.0	0.01%	1	1665	Universidad del Zulia, VE
23	57670	1632.5	0.08%	6	9795	ASOPENWAY, UA
24	265566	1617.5	0.05%	4	6470	TELESISTEMAS PENINSULARES SA DE CV, MX
25	36719	1576.0	0.01%	1	1576	MMU-53-AS-NET, US
26	51897	1462.0	0.01%	1	1462	MIHAN, IR
27	401017	1425.0	0.01%	1	1425	AAICE-ASN, US
28	147117	1417.5	0.02%	2	2835	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
29	214675	1388.0	0.01%	1	1388	STARLAMP Starlamp Network Project, JP
30	207633	1364.0	0.02%	2	2728	NOSSPEED, TR
31	150935	1330.3	0.03%	3	3991	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
32	28657	1327.3	0.03%	3	3982	MD Brasil - Tecnologia da Informacao Ltda, BR
33	395327	1227.0	0.01%	1	1227	BAYFEDCU, US
34	41383	1225.0	0.02%	8	2450	WOLASN, GB
35	329454	1170.0	0.01%	1	1170	Vitel-Wireless, NG
36	40138	1134.1	0.11%	12	13609	MDNET, US
37	328811	1121.0	0.01%	1	1121	FCB-AS, MW
38	328665	1119.5	0.02%	2	2239	ZRA-AS, ZM
39	12105	1059.5	0.02%	3	2119	GCN-001, US
40	149614	1055.0	0.01%	1	1055	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
41	136501	1044.4	0.04%	20	5222	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
42	197320	1022.0	0.01%	1	1022	NPA-AS, GB
43	137258	1020.0	0.01%	1	1020	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
44	8613	1009.3	0.02%	3	3028	WAVENET-AS8613, GB
45	211851	990.5	0.02%	2	1981	WEB9-YAZILIM-BILISIM-HIZMETLERI, TR
46	12654	895.3	0.11%	22	13429	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
47	198918	891.9	0.06%	8	7135	MST-ZELDOL-AS MST Moskva Zeldol, RU
48	8791	853.3	0.02%	3	2560	FOEHN, GB
49	47516	838.6	0.05%	7	5870	DEHOST DEHOST INTERNET VE BILISIM TEKNOLOJILERI SANAYI TICARET LIMITED SIRKETI, TR
50	204318	798.0	0.01%
Total		103989.3	4.71%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11494	0.09%	7954 -- IMMENSE-NETWORKS, US
2	130.137.231.0/24	10768	0.09%	16509 -- AMAZON-02, US
3	124.195.190.0/24	10766	0.09%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
4	55.74.57.0/24	10401	0.08%	335 -- DNIC-ASBLK-00306-00371, US
5	55.27.217.0/24	10386	0.08%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.56.0/24	10370	0.08%	335 -- DNIC-ASBLK-00306-00371, US
7	55.67.56.0/24	10367	0.08%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10366	0.08%	335 -- DNIC-ASBLK-00306-00371, US
9	130.137.108.0/24	8470	0.07%	16509 -- AMAZON-02, US
10	173.82.125.0/24	8430	0.07%	16509 -- AMAZON-02, US
11	130.137.12.0/24	8370	0.07%	16509 -- AMAZON-02, US
12	186.83.117.0/24	8048	0.06%	10620 -- Telmex Colombia S.A., CO
13	130.137.230.0/24	7849	0.06%	16509 -- AMAZON-02, US
14	130.137.80.0/24	7261	0.06%	16509 -- AMAZON-02, US
15	173.82.66.0/24	7260	0.06%	16509 -- AMAZON-02, US
16	130.137.118.0/24	7175	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
17	199.47.232.0/22	7174	0.06%	13341 -- TRANQUILITY, US
18	130.137.219.0/24	7155	0.06%	16509 -- AMAZON-02, US
19	84.205.66.0/24	7027	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
20	130.137.79.0/24	6989	0.06%	16509 -- AMAZON-02, US
21	177.86.122.0/23	6946	0.06%	52852 -- Last Mile Telecom, BR
22	44.31.52.0/24	6904	0.06%	208907 -- RISING-BRIDGE-TECHNOLOGY, GB
23	185.212.75.0/24	6880	0.05%	396950 -- COMSTBARTH-AS, FR
24	195.114.122.0/24	6649	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
25	193.105.156.0/24	6645	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
26	173.82.67.0/24	6630	0.05%	16509 -- AMAZON-02, US
27	37.252.60.0/22	6617	0.05%	5413 -- WAVENET-AS5413, GB
28	5.252.36.0/22	6591	0.05%	5413 -- WAVENET-AS5413, GB
29	173.82.108.0/24	6576	0.05%	16509 -- AMAZON-02, US
30	195.114.123.0/24	6566	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
31	5.22.224.0/21	6565	0.05%	5413 -- WAVENET-AS5413, GB
32	45.83.76.0/24	6548	0.05%	5413 -- WAVENET-AS5413, GB
33	45.83.76.0/22	6546	0.05%	5413 -- WAVENET-AS5413, GB
34	173.82.63.0/24	6539	0.05%	16509 -- AMAZON-02, US
35	130.137.127.0/24	6535	0.05%	16509 -- AMAZON-02, US
36	130.137.124.0/24	6524	0.05%	16509 -- AMAZON-02, US
37	130.137.89.0/24	6524	0.05%	14618 -- AMAZON-AES, US
38	45.132.148.0/23	6508	0.05%	5413 -- WAVENET-AS5413, GB
39	130.137.90.0/24	6474	0.05%	16509 -- AMAZON-02, US
40	46.31.71.0/24	6458	0.05%	5413 -- WAVENET-AS5413, GB
41	130.137.130.0/24	6443	0.05%	16509 -- AMAZON-02, US
42	130.137.26.0/24	6442	0.05%	16509 -- AMAZON-02, US
43	130.137.28.0/24	6398	0.05%	16509 -- AMAZON-02, US
44	45.172.92.0/22	6397	0.05%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
45	173.82.129.0/24	6396	0.05%	16509 -- AMAZON-02, US
46	130.137.78.0/24	6386	0.05%	16509 -- AMAZON-02, US
47	130.137.150.0/24	6365	0.05%	16509 -- AMAZON-02, US
48	130.137.99.0/24	6333	0.05%	16509 -- AMAZON-02, US
49	130.137.47.0/24	6329	0.05%	16509 -- AMAZON-02, US
50	130.137.105.0/24	6284	0.05%	16509 -- AMAZON-02, US
Total		372124	2.94%

14 Day BGP Profile: 21-November-2025 00:00 - 4-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	29405249
Number of Prefix Updates:	12236112
Number of Prefix Withdrawals:	306712
Average Prefixes per BGP Update:	0.43
Average BGP Update Messages per second:	24.31
Average Prefix Updates per second:	10.37
Peak BGP Update Message Rate per second:	65321	(19:59:10 Mon, 24-Nov-2025)
Peak Prefix Update Rate per second:	622	(03:30:28 Wed, 26-Nov-2025)
Peak Prefix Withdraw Rate per second:	26788	(21:20:10 Mon, 24-Nov-2025)
Prefix Count:	1061307
Updated Prefix Count:	789180
Stable Prefix Count:	272127
Origin AS Count:	77670
Updated Origin AS Count:	65439
Stable Origin AS Count:	12231
Unique Path Count:	587034
Updated Path Count:	442610
Stable Path Count:	144424

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.