The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 07 December 2025 06:26 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	318901	2.55%	14357	22.21	AMAZON-02, US
2	5413	260596	2.08%	98	2659.14	WAVENET-AS5413, GB
3	8151	209168	1.67%	12764	16.39	UNINET, MX
4	4538	162530	1.30%	5031	32.31	ERX-CERNET-BKB China Education and Research Network Center, CN
5	42337	106253	0.85%	689	154.21	RESPINA-AS, IR
6	10620	76561	0.61%	3459	22.13	Telmex Colombia S.A., CO
7	7821	71799	0.57%	17	4223.47	ZAYO-MN, US
8	39891	69725	0.56%	4833	14.43	ALJAWWALSTC-AS, SA
9	9198	64305	0.51%	1033	62.25	KAZTELECOM-AS, KZ
10	335	57053	0.46%	224	254.70	DNIC-ASBLK-00306-00371, US
11	58224	55976	0.45%	1167	47.97	TCI, IR
12	36903	55040	0.44%	1250	44.03	MT-MPLS, MA
13	4181	53682	0.43%	1196	44.88	TDS-AS, US
14	22773	51799	0.41%	4792	10.81	ASN-CXA-ALL-CCI-22773-RDC, US
15	13188	51610	0.41%	1607	32.12	TRIOLAN, UA
16	8796	48302	0.39%	493	97.98	FD-298-8796, US
17	135031	46349	0.37%	59	785.58	RNPL-AS-AP RI Networks Pvt. Ltd., IN
18	197207	45356	0.36%	984	46.09	MCCI-AS, IR
19	9829	44239	0.35%	1863	23.75	BSNL-NIB National Internet Backbone, IN
20	7552	43536	0.35%	4013	10.85	VIETEL-AS-AP Viettel Group, VN
21	15766	42686	0.34%	15	2845.73	DOMICILIUM-AS, IM
22	18101	40381	0.32%	683	59.12	RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI, IN
23	36914	39257	0.31%	584	67.22	KENET-AS, KE
24	212477	39157	0.31%	142	275.75	ROYALE-AS, NL
25	40065	38871	0.31%	567	68.56	CNSERVERS, US
26	45899	34826	0.28%	3328	10.46	VNPT-AS-VN VNPT Corp, VN
27	25184	34675	0.28%	226	153.43	AFRANET to AS62265 announce AS25184, IR
28	9009	34611	0.28%	4097	8.45	M247, RO
29	647	34034	0.27%	429	79.33	DNIC-ASBLK-00616-00665, US
30	8452	33961	0.27%	2128	15.96	TE-AS TE-AS, EG
31	17561	33483	0.27%	2897	11.56	LCS-AS-AP LARUS Limited, HK
32	174	33283	0.27%	4484	7.42	COGENT-174, US
33	21859	32969	0.26%	1603	20.57	ZEN-ECN, US
34	20940	32234	0.26%	4007	8.04	AKAMAI-ASN1, NL
35	36352	30293	0.24%	2922	10.37	AS-COLOCROSSING, US
36	37294	29690	0.24%	134	221.57	TNM, MW
37	9808	28625	0.23%	13643	2.10	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
38	11492	28544	0.23%	4789	5.96	CABLEONE, US
39	7713	28095	0.22%	3716	7.56	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
40	20473	27620	0.22%	1450	19.05	AS-VULTR, US
41	56	27033	0.22%	983	27.50	DNIC-AS-00056, US
42	11776	26957	0.22%	1909	14.12	ATLANTICBB-JOHNSTOWN, US
43	31148	26925	0.22%	555	48.51	FREENET_LLC, UA
44	398101	26617	0.21%	240	110.90	GO-DADDY-COM-LLC, US
45	16625	25627	0.20%	3015	8.50	AKAMAI-AS, US
46	11830	25501	0.20%	1992	12.80	Instituto Costarricense de Electricidad y Telecom., CR
47	24835	25394	0.20%	1986	12.79	RAYA-AS, EG
48	12389	25201	0.20%	3179	7.93	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
49	13999	25101	0.20%	2528	9.93	Mega Cable, S.A. de C.V., MX
50	29091	25021	0.20%	90	278.01	IPNXng, NG
Total		2829452	22.60%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	396950	6798.0	0.05%	1	6798	COMSTBARTH-AS, FR
2	208907	5971.0	0.05%	1	5971	RISING-BRIDGE-TECHNOLOGY, GB
3	33764	4371.0	0.03%	3	4371	AFRINIC-ZA-JNB-AS, MU
4	7821	4223.5	0.57%	17	71799	ZAYO-MN, US
5	56644	4187.0	0.03%	2	4187	SYNFS-AS, GB
6	886	3799.0	0.03%	1	3799	SBH-IX-SERVICES, FR
7	7954	3781.7	0.09%	3	11345	IMMENSE-NETWORKS, US
8	29469	3434.0	0.03%	1	3434	GTU Khmelnitsky, Ukraine, UA
9	45720	3016.0	0.02%	2	3016	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
10	15766	2845.7	0.34%	15	42686	DOMICILIUM-AS, IM
11	5413	2659.1	2.08%	98	260596	WAVENET-AS5413, GB
12	213641	2476.0	0.02%	1	2476	AS213641, DE
13	25048	2346.0	0.06%	5	7038	DSNET DSNet, GB
14	214675	2339.0	0.02%	1	2339	STARLAMP Starlamp Network Project, JP
15	149038	2100.5	0.03%	2	4201	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
16	269518	2068.0	0.03%	6	4136	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
17	57670	2029.3	0.10%	6	12176	ASOPENWAY, UA
18	51897	1993.0	0.02%	1	1993	MIHAN, IR
19	329574	1926.0	0.02%	1	1926	Sierra_Leone_Research_and_Education_Netw, SL
20	36719	1892.0	0.02%	1	1892	MMU-53-AS-NET, US
21	21570	1880.0	0.02%	94	1880	ACI-1, CA
22	13341	1755.0	0.06%	5	7020	TRANQUILITY, US
23	136867	1731.7	0.04%	3	5195	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
24	265566	1634.2	0.05%	4	6537	TELESISTEMAS PENINSULARES SA DE CV, MX
25	401017	1529.0	0.01%	1	1529	AAICE-ASN, US
26	264534	1427.0	0.01%	1	1427	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
27	395327	1399.0	0.01%	1	1399	BAYFEDCU, US
28	52852	1395.8	0.06%	5	6979	Last Mile Telecom, BR
29	329454	1368.0	0.01%	1	1368	Vitel-Wireless, NG
30	150935	1344.0	0.03%	3	4032	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
31	202174	1307.0	0.01%	1	1307	EMSP-AS, NO
32	28657	1298.0	0.03%	3	3894	MD Brasil - Tecnologia da Informacao Ltda, BR
33	328811	1287.0	0.01%	1	1287	FCB-AS, MW
34	207633	1266.0	0.02%	2	2532	NOSSPEED, TR
35	41383	1259.0	0.02%	8	2518	WOLASN, GB
36	147117	1241.0	0.02%	2	2482	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
37	40138	1132.2	0.11%	12	13586	MDNET, US
38	328665	1110.0	0.02%	2	2220	ZRA-AS, ZM
39	265046	1093.5	0.02%	3	2187	NET-MAIS INFORMATICA, BR
40	197320	1081.0	0.01%	1	1081	NPA-AS, GB
41	8613	1055.3	0.03%	3	3166	WAVENET-AS8613, GB
42	149614	1042.0	0.01%	1	1042	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
43	198918	902.8	0.06%	8	7222	MST-ZELDOL-AS MST Moskva Zeldol, RU
44	12654	896.5	0.11%	22	13448	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
45	211851	873.0	0.01%	2	1746	WEB9-YAZILIM-BILISIM-HIZMETLERI, TR
46	8791	866.0	0.02%	3	2598	FOEHN, GB
47	136501	855.4	0.03%	20	4277	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
48	141952	850.0	0.01%	2	850	IDNIC-LINKKITA-AS-ID PT Link Kita Teknologi, ID
49	214929	836.0	0.01%	2	1672	LASTRESPONSE, AT
50	204318	796.0	0.01%
Total		100767.2	4.51%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11325	0.09%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	10830	0.08%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10657	0.08%	16509 -- AMAZON-02, US
4	55.27.217.0/24	10249	0.08%	335 -- DNIC-ASBLK-00306-00371, US
5	55.74.57.0/24	10240	0.08%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.56.0/24	10232	0.08%	335 -- DNIC-ASBLK-00306-00371, US
7	55.67.56.0/24	10224	0.08%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10201	0.08%	335 -- DNIC-ASBLK-00306-00371, US
9	173.82.125.0/24	8370	0.07%	16509 -- AMAZON-02, US
10	130.137.108.0/24	8359	0.07%	16509 -- AMAZON-02, US
11	186.83.117.0/24	8314	0.06%	10620 -- Telmex Colombia S.A., CO
12	130.137.12.0/24	8295	0.06%	16509 -- AMAZON-02, US
13	130.137.230.0/24	7763	0.06%	16509 -- AMAZON-02, US
14	173.82.66.0/24	7326	0.06%	16509 -- AMAZON-02, US
15	130.137.80.0/24	7292	0.06%	16509 -- AMAZON-02, US
16	130.137.219.0/24	7235	0.06%	16509 -- AMAZON-02, US
17	130.137.118.0/24	7196	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
18	84.205.66.0/24	7078	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
19	199.47.232.0/22	6982	0.05%	13341 -- TRANQUILITY, US
20	177.86.122.0/23	6929	0.05%	52852 -- Last Mile Telecom, BR
21	130.137.79.0/24	6922	0.05%	16509 -- AMAZON-02, US
22	185.212.75.0/24	6798	0.05%	396950 -- COMSTBARTH-AS, FR
23	195.114.122.0/24	6666	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
24	173.82.67.0/24	6655	0.05%	16509 -- AMAZON-02, US
25	193.105.156.0/24	6646	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
26	130.137.124.0/24	6628	0.05%	16509 -- AMAZON-02, US
27	195.114.123.0/24	6603	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
28	37.252.60.0/22	6597	0.05%	5413 -- WAVENET-AS5413, GB
29	5.252.36.0/22	6575	0.05%	5413 -- WAVENET-AS5413, GB
30	130.137.127.0/24	6574	0.05%	16509 -- AMAZON-02, US
31	5.22.224.0/21	6558	0.05%	5413 -- WAVENET-AS5413, GB
32	130.137.90.0/24	6556	0.05%	16509 -- AMAZON-02, US
33	173.82.63.0/24	6551	0.05%	16509 -- AMAZON-02, US
34	173.82.108.0/24	6547	0.05%	16509 -- AMAZON-02, US
35	130.137.89.0/24	6509	0.05%	14618 -- AMAZON-AES, US
36	130.137.150.0/24	6498	0.05%	16509 -- AMAZON-02, US
37	130.137.28.0/24	6497	0.05%	16509 -- AMAZON-02, US
38	173.82.129.0/24	6479	0.05%	16509 -- AMAZON-02, US
39	45.172.92.0/22	6477	0.05%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
40	45.83.76.0/24	6466	0.05%	5413 -- WAVENET-AS5413, GB
41	45.83.76.0/22	6464	0.05%	5413 -- WAVENET-AS5413, GB
42	130.137.26.0/24	6463	0.05%	16509 -- AMAZON-02, US
43	130.137.130.0/24	6449	0.05%	16509 -- AMAZON-02, US
44	130.137.78.0/24	6449	0.05%	16509 -- AMAZON-02, US
45	130.137.16.0/24	6439	0.05%	16509 -- AMAZON-02, US
46	45.132.148.0/23	6435	0.05%	5413 -- WAVENET-AS5413, GB
47	130.137.47.0/24	6432	0.05%	16509 -- AMAZON-02, US
48	130.137.227.0/24	6404	0.05%	16509 -- AMAZON-02, US
49	130.137.111.0/24	6396	0.05%	16509 -- AMAZON-02, US
50	130.137.99.0/24	6376	0.05%	16509 -- AMAZON-02, US
Total		371206	2.87%

14 Day BGP Profile: 23-November-2025 00:00 - 6-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	29478047
Number of Prefix Updates:	12504385
Number of Prefix Withdrawals:	308486
Average Prefixes per BGP Update:	0.43
Average BGP Update Messages per second:	24.37
Average Prefix Updates per second:	10.59
Peak BGP Update Message Rate per second:	65321	(19:59:10 Mon, 24-Nov-2025)
Peak Prefix Update Rate per second:	986	(16:34:58 Fri, 5-Dec-2025)
Peak Prefix Withdraw Rate per second:	28363	(21:20:10 Mon, 24-Nov-2025)
Prefix Count:	1063182
Updated Prefix Count:	780881
Stable Prefix Count:	282301
Origin AS Count:	77687
Updated Origin AS Count:	64674
Stable Origin AS Count:	13013
Unique Path Count:	585166
Updated Path Count:	439678
Stable Path Count:	145488

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.