The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 10 December 2025 06:24 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	301615	2.71%	14362	21.00	AMAZON-02, US
2	5413	255366	2.29%	98	2605.78	WAVENET-AS5413, GB
3	8151	188562	1.69%	12775	14.76	UNINET, MX
4	4538	163828	1.47%	5032	32.56	ERX-CERNET-BKB China Education and Research Network Center, CN
5	10620	78218	0.70%	3459	22.61	Telmex Colombia S.A., CO
6	51375	77457	0.70%	388	199.63	VIVA, BH
7	39891	74430	0.67%	4833	15.40	ALJAWWALSTC-AS, SA
8	7821	71811	0.65%	17	4224.18	ZAYO-MN, US
9	9198	64845	0.58%	1030	62.96	KAZTELECOM-AS, KZ
10	42337	64485	0.58%	690	93.46	RESPINA-AS, IR
11	36903	62944	0.57%	1250	50.36	MT-MPLS, MA
12	4181	54895	0.49%	1197	45.86	TDS-AS, US
13	335	53902	0.48%	224	240.63	DNIC-ASBLK-00306-00371, US
14	13188	53530	0.48%	1607	33.31	TRIOLAN, UA
15	8796	49065	0.44%	484	101.37	FD-298-8796, US
16	135031	46363	0.42%	59	785.81	RNPL-AS-AP RI Networks Pvt. Ltd., IN
17	9829	45078	0.40%	1862	24.21	BSNL-NIB National Internet Backbone, IN
18	58224	42886	0.39%	1169	36.69	TCI, IR
19	15766	42625	0.38%	15	2841.67	DOMICILIUM-AS, IM
20	7552	42166	0.38%	4015	10.50	VIETEL-AS-AP Viettel Group, VN
21	22773	41874	0.38%	4787	8.75	ASN-CXA-ALL-CCI-22773-RDC, US
22	45899	41344	0.37%	3330	12.42	VNPT-AS-VN VNPT Corp, VN
23	36914	39073	0.35%	582	67.14	KENET-AS, KE
24	40065	38926	0.35%	570	68.29	CNSERVERS, US
25	9009	37471	0.34%	4077	9.19	M247, RO
26	6412	36970	0.33%	250	147.88	KW KEMS Block-A, Floor 7, Souq Al-Kabeer Kuwait City, State of Kuwait P O Box 3623, Safat 13037, KW
27	17561	36872	0.33%	3045	12.11	LCS-AS-AP LARUS Limited, HK
28	647	35410	0.32%	431	82.16	DNIC-ASBLK-00616-00665, US
29	197207	34504	0.31%	978	35.28	MCCI-AS, IR
30	21859	30932	0.28%	1601	19.32	ZEN-ECN, US
31	7713	30415	0.27%	3725	8.17	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
32	29091	28641	0.26%	90	318.23	IPNXng, NG
33	9808	28315	0.25%	13638	2.08	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
34	174	28287	0.25%	4480	6.31	COGENT-174, US
35	31148	28002	0.25%	555	50.45	FREENET_LLC, UA
36	25184	27455	0.25%	226	121.48	AFRANET to AS62265 announce AS25184, IR
37	37294	27252	0.24%	134	203.37	TNM, MW
38	20940	27246	0.24%	3997	6.82	AKAMAI-ASN1, NL
39	398101	27015	0.24%	240	112.56	GO-DADDY-COM-LLC, US
40	20473	26986	0.24%	1454	18.56	AS-VULTR, US
41	8452	26896	0.24%	1709	15.74	TE-AS TE-AS, EG
42	29571	26011	0.23%	1072	24.26	ORANGE-COTE-IVOIRE, CI
43	36352	24427	0.22%	2903	8.41	AS-COLOCROSSING, US
44	9583	24250	0.22%	2055	11.80	SIFY-AS-IN Sify Limited, IN
45	3303	23609	0.21%	256	92.22	SWISSCOM Swisscom Switzerland Ltd, CH
46	24835	23457	0.21%	1987	11.81	RAYA-AS, EG
47	17488	23263	0.21%	1274	18.26	HATHWAY-NET-AP Hathway IP Over Cable Internet, IN
48	26611	22631	0.20%	243	93.13	COMUNICACION CELULAR S.A. COMCEL S.A., CO
49	9304	22529	0.20%	1844	12.22	HUTCHISON-AS-AP HGC Global Communications Limited, HK
50	11492	22355	0.20%	4763	4.69	CABLEONE, US
Total		2726489	24.46%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	13341	7020.0	0.06%	5	7020	TRANQUILITY, US
2	396950	6169.0	0.06%	1	6169	COMSTBARTH-AS, FR
3	208907	4859.0	0.04%	1	4859	RISING-BRIDGE-TECHNOLOGY, GB
4	33764	4301.0	0.04%	3	4301	AFRINIC-ZA-JNB-AS, MU
5	7821	4224.2	0.65%	17	71811	ZAYO-MN, US
6	56644	4168.0	0.04%	2	4168	SYNFS-AS, GB
7	7954	3734.7	0.10%	3	11204	IMMENSE-NETWORKS, US
8	886	3597.0	0.03%	1	3597	SBH-IX-SERVICES, FR
9	29469	3468.0	0.03%	1	3468	GTU Khmelnitsky, Ukraine, UA
10	214675	2877.0	0.03%	1	2877	STARLAMP Starlamp Network Project, JP
11	15766	2841.7	0.38%	15	42625	DOMICILIUM-AS, IM
12	57670	2795.7	0.15%	6	16774	ASOPENWAY, UA
13	149038	2630.0	0.05%	2	5260	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
14	51897	2629.0	0.02%	1	2629	MIHAN, IR
15	5413	2605.8	2.29%	98	255366	WAVENET-AS5413, GB
16	213641	2405.0	0.02%	1	2405	AS213641, DE
17	45720	2319.0	0.02%	2	2319	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
18	202174	2239.0	0.02%	1	2239	EMSP-AS, NO
19	265046	2129.0	0.04%	3	4258	NET-MAIS INFORMATICA, BR
20	25048	2045.0	0.06%	5	6135	DSNET DSNet, GB
21	269518	1940.0	0.03%	6	3880	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
22	21570	1916.0	0.02%	94	1916	ACI-1, CA
23	12335	1821.0	0.05%	3	5463	TARIO, RU
24	136867	1705.7	0.05%	3	5117	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
25	265566	1620.5	0.06%	4	6482	TELESISTEMAS PENINSULARES SA DE CV, MX
26	214929	1613.5	0.03%	2	3227	LASTRESPONSE, AT
27	329454	1549.0	0.01%	1	1549	Vitel-Wireless, NG
28	401017	1517.0	0.01%	1	1517	AAICE-ASN, US
29	52852	1434.8	0.06%	5	7174	Last Mile Telecom, BR
30	395327	1432.0	0.01%	1	1432	BAYFEDCU, US
31	28657	1373.3	0.04%	3	4120	MD Brasil - Tecnologia da Informacao Ltda, BR
32	328811	1287.0	0.01%	1	1287	FCB-AS, MW
33	147117	1244.0	0.02%	2	2488	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
34	207633	1182.5	0.02%	2	2365	NOSSPEED, TR
35	40138	1169.8	0.13%	12	14038	MDNET, US
36	150935	1146.0	0.03%	3	3438	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
37	328665	1126.5	0.02%	2	2253	ZRA-AS, ZM
38	41383	1113.0	0.02%	8	2226	WOLASN, GB
39	149614	1011.0	0.01%	1	1011	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
40	136501	958.6	0.04%	20	4793	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
41	197320	957.0	0.01%	1	957	NPA-AS, GB
42	137258	943.0	0.01%	1	943	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
43	8613	938.3	0.03%	3	2815	WAVENET-AS8613, GB
44	61850	929.9	0.06%	7	6509	A2 TELECOMUNICACOES LTDA, BR
45	198918	900.0	0.06%	8	7200	MST-ZELDOL-AS MST Moskva Zeldol, RU
46	12654	895.7	0.12%	22	13435	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
47	268116	840.8	0.05%	6	5045	Sim Internet LTDA., BR
48	329574	835.0	0.01%	1	835	Sierra_Leone_Research_and_Education_Netw, SL
49	204318	834.0	0.01%	1	834	BGPTOOLS-QA, GB
50	202364	831.0	0.01%
Total		106123	5.17%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11192	0.10%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	11014	0.10%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10645	0.09%	16509 -- AMAZON-02, US
4	55.27.217.0/24	10314	0.09%	335 -- DNIC-ASBLK-00306-00371, US
5	55.27.56.0/24	10300	0.09%	335 -- DNIC-ASBLK-00306-00371, US
6	55.67.56.0/24	10291	0.09%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.57.0/24	10227	0.09%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10202	0.09%	335 -- DNIC-ASBLK-00306-00371, US
9	186.83.117.0/24	8367	0.07%	10620 -- Telmex Colombia S.A., CO
10	173.82.125.0/24	8359	0.07%	16509 -- AMAZON-02, US
11	130.137.108.0/24	8261	0.07%	16509 -- AMAZON-02, US
12	130.137.12.0/24	8172	0.07%	16509 -- AMAZON-02, US
13	130.137.230.0/24	7665	0.07%	16509 -- AMAZON-02, US
14	173.82.66.0/24	7277	0.06%	16509 -- AMAZON-02, US
15	130.137.80.0/24	7210	0.06%	16509 -- AMAZON-02, US
16	130.137.219.0/24	7204	0.06%	16509 -- AMAZON-02, US
17	130.137.118.0/24	7154	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
18	177.86.122.0/23	7117	0.06%	52852 -- Last Mile Telecom, BR
19	199.47.232.0/22	7020	0.06%	13341 -- TRANQUILITY, US
20	84.205.66.0/24	7008	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
21	130.137.79.0/24	6943	0.06%	16509 -- AMAZON-02, US
22	195.114.122.0/24	6662	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
23	130.137.150.0/24	6656	0.06%	16509 -- AMAZON-02, US
24	37.252.60.0/22	6638	0.06%	5413 -- WAVENET-AS5413, GB
25	130.137.124.0/24	6636	0.06%	16509 -- AMAZON-02, US
26	193.105.156.0/24	6628	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
27	173.82.67.0/24	6626	0.06%	16509 -- AMAZON-02, US
28	195.114.123.0/24	6598	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	5.252.36.0/22	6579	0.06%	5413 -- WAVENET-AS5413, GB
30	130.137.28.0/24	6576	0.06%	16509 -- AMAZON-02, US
31	5.22.224.0/21	6576	0.06%	5413 -- WAVENET-AS5413, GB
32	130.137.127.0/24	6548	0.06%	16509 -- AMAZON-02, US
33	130.137.111.0/24	6542	0.06%	16509 -- AMAZON-02, US
34	130.137.89.0/24	6541	0.06%	14618 -- AMAZON-AES, US
35	130.137.16.0/24	6541	0.06%	16509 -- AMAZON-02, US
36	173.82.63.0/24	6538	0.06%	16509 -- AMAZON-02, US
37	130.137.90.0/24	6532	0.06%	16509 -- AMAZON-02, US
38	45.83.76.0/24	6528	0.06%	5413 -- WAVENET-AS5413, GB
39	173.82.108.0/24	6527	0.06%	16509 -- AMAZON-02, US
40	45.83.76.0/22	6526	0.06%	5413 -- WAVENET-AS5413, GB
41	173.82.129.0/24	6517	0.06%	16509 -- AMAZON-02, US
42	130.137.227.0/24	6501	0.06%	16509 -- AMAZON-02, US
43	45.132.148.0/23	6501	0.06%	5413 -- WAVENET-AS5413, GB
44	130.137.47.0/24	6497	0.06%	16509 -- AMAZON-02, US
45	130.137.26.0/24	6457	0.06%	16509 -- AMAZON-02, US
46	130.137.78.0/24	6442	0.06%	16509 -- AMAZON-02, US
47	130.137.147.0/24	6435	0.06%	16509 -- AMAZON-02, US
48	46.31.71.0/24	6433	0.06%	5413 -- WAVENET-AS5413, GB
49	45.172.92.0/22	6424	0.06%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
50	130.137.99.0/24	6414	0.06%	16509 -- AMAZON-02, US
Total		371561	3.31%

14 Day BGP Profile: 26-November-2025 00:00 - 9-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	26456880
Number of Prefix Updates:	11130942
Number of Prefix Withdrawals:	303535
Average Prefixes per BGP Update:	0.43
Average BGP Update Messages per second:	21.87
Average Prefix Updates per second:	9.45
Peak BGP Update Message Rate per second:	63820	(00:59:29 Wed, 26-Nov-2025)
Peak Prefix Update Rate per second:	986	(16:34:58 Fri, 5-Dec-2025)
Peak Prefix Withdraw Rate per second:	21991	(00:37:50 Wed, 26-Nov-2025)
Prefix Count:	1063654
Updated Prefix Count:	773444
Stable Prefix Count:	290210
Origin AS Count:	77681
Updated Origin AS Count:	63952
Stable Origin AS Count:	13729
Unique Path Count:	576462
Updated Path Count:	428768
Stable Path Count:	147694

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.