The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 08 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	315640	2.52%	14357	21.99	AMAZON-02, US
2	5413	260616	2.08%	98	2659.35	WAVENET-AS5413, GB
3	8151	212566	1.70%	12764	16.65	UNINET, MX
4	4538	161796	1.29%	5031	32.16	ERX-CERNET-BKB China Education and Research Network Center, CN
5	42337	95078	0.76%	689	137.99	RESPINA-AS, IR
6	10620	79512	0.64%	3459	22.99	Telmex Colombia S.A., CO
7	7821	71803	0.57%	17	4223.71	ZAYO-MN, US
8	39891	71257	0.57%	4833	14.74	ALJAWWALSTC-AS, SA
9	9198	64169	0.51%	1033	62.12	KAZTELECOM-AS, KZ
10	335	55911	0.45%	224	249.60	DNIC-ASBLK-00306-00371, US
11	36903	55429	0.44%	1250	44.34	MT-MPLS, MA
12	4181	53681	0.43%	1196	44.88	TDS-AS, US
13	13188	53350	0.43%	1607	33.20	TRIOLAN, UA
14	22773	51710	0.41%	4792	10.79	ASN-CXA-ALL-CCI-22773-RDC, US
15	58224	50544	0.40%	1167	43.31	TCI, IR
16	8796	48365	0.39%	492	98.30	FD-298-8796, US
17	135031	46363	0.37%	59	785.81	RNPL-AS-AP RI Networks Pvt. Ltd., IN
18	9829	44665	0.36%	1862	23.99	BSNL-NIB National Internet Backbone, IN
19	15766	42690	0.34%	15	2846.00	DOMICILIUM-AS, IM
20	7552	41395	0.33%	4013	10.32	VIETEL-AS-AP Viettel Group, VN
21	212477	41130	0.33%	142	289.65	ROYALE-AS, NL
22	197207	39633	0.32%	988	40.11	MCCI-AS, IR
23	40065	38628	0.31%	568	68.01	CNSERVERS, US
24	36914	37667	0.30%	583	64.61	KENET-AS, KE
25	9009	35757	0.29%	4097	8.73	M247, RO
26	45899	34802	0.28%	3328	10.46	VNPT-AS-VN VNPT Corp, VN
27	6412	34425	0.28%	242	142.25	KW KEMS Block-A, Floor 7, Souq Al-Kabeer Kuwait City, State of Kuwait P O Box 3623, Safat 13037, KW
28	647	34035	0.27%	431	78.97	DNIC-ASBLK-00616-00665, US
29	25184	33960	0.27%	226	150.27	AFRANET to AS62265 announce AS25184, IR
30	21859	33516	0.27%	1603	20.91	ZEN-ECN, US
31	174	33369	0.27%	4484	7.44	COGENT-174, US
32	20940	32123	0.26%	4007	8.02	AKAMAI-ASN1, NL
33	37294	31596	0.25%	134	235.79	TNM, MW
34	17561	31035	0.25%	2897	10.71	LCS-AS-AP LARUS Limited, HK
35	8452	30340	0.24%	2128	14.26	TE-AS TE-AS, EG
36	9808	28713	0.23%	13642	2.10	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
37	31148	28410	0.23%	555	51.19	FREENET_LLC, UA
38	20473	27762	0.22%	1449	19.16	AS-VULTR, US
39	11492	27326	0.22%	4789	5.71	CABLEONE, US
40	11776	26957	0.22%	1909	14.12	ATLANTICBB-JOHNSTOWN, US
41	7029	26873	0.21%	2537	10.59	WINDSTREAM, US
42	398101	26633	0.21%	240	110.97	GO-DADDY-COM-LLC, US
43	36352	26041	0.21%	2922	8.91	AS-COLOCROSSING, US
44	56	25503	0.20%	983	25.94	DNIC-AS-00056, US
45	29091	25456	0.20%	90	282.84	IPNXng, NG
46	12389	25254	0.20%	3179	7.94	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
47	16625	25200	0.20%	3015	8.36	AKAMAI-AS, US
48	7713	25066	0.20%	3716	6.75	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
49	13999	24989	0.20%	2528	9.88	Mega Cable, S.A. de C.V., MX
50	12252	24749	0.20%	717	34.52	America Movil Peru S.A.C., PE
Total		2793488	22.33%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	396950	6179.0	0.05%	1	6179	COMSTBARTH-AS, FR
2	208907	5551.0	0.04%	1	5551	RISING-BRIDGE-TECHNOLOGY, GB
3	33764	4328.0	0.03%	3	4328	AFRINIC-ZA-JNB-AS, MU
4	7821	4223.7	0.57%	17	71803	ZAYO-MN, US
5	56644	4188.0	0.03%	2	4188	SYNFS-AS, GB
6	886	3858.0	0.03%	1	3858	SBH-IX-SERVICES, FR
7	7954	3768.0	0.09%	3	11304	IMMENSE-NETWORKS, US
8	29469	3428.0	0.03%	1	3428	GTU Khmelnitsky, Ukraine, UA
9	45720	2978.0	0.02%	2	2978	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
10	15766	2846.0	0.34%	15	42690	DOMICILIUM-AS, IM
11	214675	2825.0	0.02%	1	2825	STARLAMP Starlamp Network Project, JP
12	5413	2659.3	2.08%	98	260616	WAVENET-AS5413, GB
13	213641	2476.0	0.02%	1	2476	AS213641, DE
14	25048	2256.0	0.05%	5	6768	DSNET DSNet, GB
15	149038	2254.0	0.04%	2	4508	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
16	57670	2228.5	0.11%	6	13371	ASOPENWAY, UA
17	51897	2221.0	0.02%	1	2221	MIHAN, IR
18	36719	2071.0	0.02%	1	2071	MMU-53-AS-NET, US
19	269518	2062.5	0.03%	6	4125	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
20	21570	1882.0	0.02%	94	1882	ACI-1, CA
21	13341	1756.5	0.06%	5	7026	TRANQUILITY, US
22	136867	1723.7	0.04%	3	5171	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
23	265566	1645.8	0.05%	4	6583	TELESISTEMAS PENINSULARES SA DE CV, MX
24	401017	1552.0	0.01%	1	1552	AAICE-ASN, US
25	329574	1503.0	0.01%	1	1503	Sierra_Leone_Research_and_Education_Netw, SL
26	329454	1443.0	0.01%	1	1443	Vitel-Wireless, NG
27	265046	1434.5	0.02%	3	2869	NET-MAIS INFORMATICA, BR
28	52852	1399.6	0.06%	5	6998	Last Mile Telecom, BR
29	395327	1393.0	0.01%	1	1393	BAYFEDCU, US
30	202174	1339.0	0.01%	1	1339	EMSP-AS, NO
31	28657	1323.3	0.03%	3	3970	MD Brasil - Tecnologia da Informacao Ltda, BR
32	328811	1295.0	0.01%	1	1295	FCB-AS, MW
33	12335	1295.0	0.03%	3	3885	TARIO, RU
34	40138	1283.8	0.12%	12	15406	MDNET, US
35	147117	1241.0	0.02%	2	2482	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
36	41383	1237.0	0.02%	8	2474	WOLASN, GB
37	150935	1223.7	0.03%	3	3671	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
38	207633	1203.0	0.02%	2	2406	NOSSPEED, TR
39	328665	1140.0	0.02%	2	2280	ZRA-AS, ZM
40	197320	1069.0	0.01%	1	1069	NPA-AS, GB
41	214929	1066.0	0.02%	2	2132	LASTRESPONSE, AT
42	264534	1040.0	0.01%	1	1040	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
43	8613	1033.7	0.02%	3	3101	WAVENET-AS8613, GB
44	137258	1025.0	0.01%	1	1025	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
45	149614	1023.0	0.01%	1	1023	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
46	136501	952.6	0.04%	20	4763	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
47	198918	904.0	0.06%	8	7232	MST-ZELDOL-AS MST Moskva Zeldol, RU
48	12654	893.2	0.11%	22	13398	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
49	211851	859.0	0.01%	2	1718	WEB9-YAZILIM-BILISIM-HIZMETLERI, TR
50	8791	848.0	0.02%
Total		101428.4	4.54%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11284	0.09%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	10905	0.09%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10711	0.08%	16509 -- AMAZON-02, US
4	55.27.217.0/24	10230	0.08%	335 -- DNIC-ASBLK-00306-00371, US
5	55.27.56.0/24	10218	0.08%	335 -- DNIC-ASBLK-00306-00371, US
6	55.67.56.0/24	10213	0.08%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.57.0/24	10198	0.08%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10159	0.08%	335 -- DNIC-ASBLK-00306-00371, US
9	186.83.117.0/24	8392	0.07%	10620 -- Telmex Colombia S.A., CO
10	173.82.125.0/24	8390	0.07%	16509 -- AMAZON-02, US
11	130.137.108.0/24	8345	0.07%	16509 -- AMAZON-02, US
12	130.137.12.0/24	8272	0.06%	16509 -- AMAZON-02, US
13	130.137.230.0/24	7784	0.06%	16509 -- AMAZON-02, US
14	173.82.66.0/24	7320	0.06%	16509 -- AMAZON-02, US
15	130.137.80.0/24	7316	0.06%	16509 -- AMAZON-02, US
16	130.137.219.0/24	7237	0.06%	16509 -- AMAZON-02, US
17	130.137.118.0/24	7171	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
18	84.205.66.0/24	7052	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
19	199.47.232.0/22	6987	0.05%	13341 -- TRANQUILITY, US
20	130.137.79.0/24	6980	0.05%	16509 -- AMAZON-02, US
21	177.86.122.0/23	6941	0.05%	52852 -- Last Mile Telecom, BR
22	130.137.124.0/24	6680	0.05%	16509 -- AMAZON-02, US
23	195.114.122.0/24	6674	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
24	173.82.67.0/24	6661	0.05%	16509 -- AMAZON-02, US
25	193.105.156.0/24	6650	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
26	130.137.150.0/24	6614	0.05%	16509 -- AMAZON-02, US
27	37.252.60.0/22	6606	0.05%	5413 -- WAVENET-AS5413, GB
28	195.114.123.0/24	6590	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	130.137.127.0/24	6584	0.05%	16509 -- AMAZON-02, US
30	130.137.90.0/24	6576	0.05%	16509 -- AMAZON-02, US
31	173.82.63.0/24	6574	0.05%	16509 -- AMAZON-02, US
32	130.137.89.0/24	6563	0.05%	14618 -- AMAZON-AES, US
33	173.82.108.0/24	6554	0.05%	16509 -- AMAZON-02, US
34	5.22.224.0/21	6544	0.05%	5413 -- WAVENET-AS5413, GB
35	5.252.36.0/22	6544	0.05%	5413 -- WAVENET-AS5413, GB
36	130.137.16.0/24	6538	0.05%	16509 -- AMAZON-02, US
37	130.137.28.0/24	6536	0.05%	16509 -- AMAZON-02, US
38	45.172.92.0/22	6523	0.05%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
39	173.82.129.0/24	6499	0.05%	16509 -- AMAZON-02, US
40	45.83.76.0/24	6494	0.05%	5413 -- WAVENET-AS5413, GB
41	130.137.47.0/24	6493	0.05%	16509 -- AMAZON-02, US
42	45.83.76.0/22	6492	0.05%	5413 -- WAVENET-AS5413, GB
43	130.137.26.0/24	6482	0.05%	16509 -- AMAZON-02, US
44	130.137.111.0/24	6471	0.05%	16509 -- AMAZON-02, US
45	130.137.78.0/24	6468	0.05%	16509 -- AMAZON-02, US
46	45.132.148.0/23	6464	0.05%	5413 -- WAVENET-AS5413, GB
47	130.137.130.0/24	6458	0.05%	16509 -- AMAZON-02, US
48	130.137.227.0/24	6445	0.05%	16509 -- AMAZON-02, US
49	130.137.147.0/24	6416	0.05%	16509 -- AMAZON-02, US
50	130.137.99.0/24	6410	0.05%	16509 -- AMAZON-02, US
Total		371708	2.89%

14 Day BGP Profile: 24-November-2025 00:00 - 7-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	29321266
Number of Prefix Updates:	12503996
Number of Prefix Withdrawals:	306462
Average Prefixes per BGP Update:	0.44
Average BGP Update Messages per second:	24.24
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:	28743	(21:20:10 Mon, 24-Nov-2025)
Prefix Count:	1063137
Updated Prefix Count:	782300
Stable Prefix Count:	280837
Origin AS Count:	77687
Updated Origin AS Count:	64854
Stable Origin AS Count:	12833
Unique Path Count:	585242
Updated Path Count:	439940
Stable Path Count:	145302

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.