The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 18 September 2025 06:23 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	275492	3.37%	14576	18.90	AMAZON-02, US
2	18101	234442	2.87%	690	339.77	RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI, IN
3	8151	212431	2.60%	12461	17.05	UNINET, MX
4	4155	119750	1.47%	3903	30.68	USDA-1, US
5	27773	104875	1.28%	536	195.66	MILLICOM CABLE EL SALVADOR S.A. DE C.V., SV
6	207990	87349	1.07%	1129	77.37	HR-CUSTOMER, IN
7	203020	80785	0.99%	1972	40.97	HOSTROYALE, IN
8	15964	78818	0.96%	161	489.55	CAMNET-AS, CM
9	58224	66096	0.81%	1170	56.49	TCI, IR
10	335	53928	0.66%	220	245.13	DNIC-ASBLK-00306-00371, US
11	39891	51522	0.63%	4798	10.74	ALJAWWALSTC-AS, SA
12	13188	43161	0.53%	1607	26.86	TRIOLAN, UA
13	7552	39457	0.48%	3950	9.99	VIETEL-AS-AP Viettel Group, VN
14	36914	38308	0.47%	591	64.82	KENET-AS, KE
15	647	37384	0.46%	434	86.14	DNIC-ASBLK-00616-00665, US
16	203214	37197	0.46%	800	46.50	HULUMTELE, IQ
17	367	34943	0.43%	2680	13.04	DNIC-ASBLK-00306-00371, US
18	36903	30916	0.38%	1250	24.73	MT-MPLS, MA
19	42337	29636	0.36%	685	43.26	RESPINA-AS, IR
20	10620	28403	0.35%	3494	8.13	Telmex Colombia S.A., CO
21	45899	27695	0.34%	3310	8.37	VNPT-AS-VN VNPT Corp, VN
22	21050	26735	0.33%	298	89.71	FAST-TELCO, KW
23	26210	26709	0.33%	193	138.39	AXS Bolivia S. A., BO
24	197207	26390	0.32%	822	32.10	MCCI-AS, IR
25	11492	24891	0.30%	4754	5.24	CABLEONE, US
26	5972	23759	0.29%	1408	16.87	DNIC-ASBLK-05800-06055, US
27	5371	22210	0.27%	281	79.04	DNIC-ASBLK-05120-05376, US
28	27046	22075	0.27%	497	44.42	DNIC-ASBLK-27032-27159, US
29	11830	21427	0.26%	1989	10.77	Instituto Costarricense de Electricidad y Telecom., CR
30	136255	21131	0.26%	126	167.71	TIMCL-AS-AP Telecom International Myanmar Co., Ltd, MM
31	9829	20874	0.26%	1858	11.23	BSNL-NIB National Internet Backbone, IN
32	24757	20778	0.25%	482	43.11	EthioNet-AS, ET
33	205733	20531	0.25%	21	977.67	AS-HOSTIFOX, TR
34	56	20330	0.25%	764	26.61	DNIC-AS-00056, US
35	262287	20224	0.25%	306	66.09	Latitude.sh LTDA, BR
36	37294	20184	0.25%	138	146.26	TNM, MW
37	28135	19089	0.23%	69	276.65	ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
38	138754	19050	0.23%	198	96.21	KVBPL-AS-IN Kerala Vision Broad Band Private Limited, IN
39	28186	18766	0.23%	133	141.10	ITS TELECOMUNICACOES LTDA, BR
40	29571	18450	0.23%	1372	13.45	ORANGE-COTE-IVOIRE, CI
41	4755	18355	0.22%	2187	8.39	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP, IN
42	8369	17974	0.22%	58	309.90	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
43	20473	17863	0.22%	1426	12.53	AS-VULTR, US
44	36530	17415	0.21%	125	139.32	FUTURE-LAIN, US
45	1501	17365	0.21%	159	109.21	DNIC-ASBLK-01500-01502, US
46	26615	17066	0.21%	1016	16.80	TIM SA, BR
47	12479	16952	0.21%	7558	2.24	UNI2-AS, ES
48	38266	16795	0.21%	734	22.88	VIL-AS-AP Vodafone Idea Ltd, IN
49	212219	15363	0.19%	33	465.55	HOSTINGDUNYAM HOSTING DUNYAM, TR
50	12252	15202	0.19%	713	21.32	America Movil Peru S.A.C., PE
Total		2296541	28.12%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	207169	8422.0	0.10%	1	8422	BRAYDEN-NET, US
2	400552	5564.5	0.14%	2	11129	ODYACAD-ASN, US
3	396950	5301.0	0.06%	1	5301	COMSTBARTH-AS, FR
4	7954	4054.0	0.15%	3	12162	IMMENSE-NETWORKS, US
5	149038	3421.5	0.08%	2	6843	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
6	25048	2805.0	0.14%	5	11220	DSNET DSNet, GB
7	329312	2476.0	0.03%	1	2476	Manano-Telecommunication-SARL, TD
8	20067	2268.0	0.03%	1	2268	NAS-GHENT, US
9	328599	2153.3	0.08%	3	6460	Amanet-SARL, TD
10	214294	1831.5	0.09%	4	7326	NOOBNET, GB
11	13341	1770.0	0.09%	5	7080	TRANQUILITY, US
12	886	1667.0	0.02%	1	1667	SBH-IX-SERVICES, FR
13	215027	1598.0	0.06%	3	4794	AS215027, TR
14	215391	1595.6	0.14%	7	11169	HOSTABIL, TR
15	137258	1555.0	0.02%	1	1555	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
16	60647	1499.2	0.07%	4	5997	MERT-TURKOGLU-DATAHOST-INTERNET-VE-BILISIM-TEKNOLOJILERI, TR
17	49565	1423.0	0.02%	1	1423	POLE-TELEKOM, TR
18	400786	1414.0	0.02%	1	1414	PFS, US
19	28657	1369.7	0.05%	3	4109	MD Brasil - Tecnologia da Informacao Ltda, BR
20	63376	1329.0	0.03%	2	2658	TOUCHTONE-CUSTS, US
21	265566	1236.2	0.06%	4	4945	TELESISTEMAS PENINSULARES SA DE CV, MX
22	5730	1212.0	0.01%	1	1212	WORLDNET3, US
23	270168	1209.5	0.03%	2	2419	Alejandro Uballe Montoya, MX
24	37462	1159.0	0.06%	4	4636	Prestabist, TD
25	215238	1130.8	0.11%	8	9046	ONEMBILISIM, TR
26	328178	1114.9	0.10%	16	7804	The-Computer-Hut-AS, ZA
27	272772	1095.0	0.03%	2	2190	M MACHADO SIMAO FALCAO EIRELI ME, BR
28	205733	1026.5	0.25%	21	20531	AS-HOSTIFOX, TR
29	29469	997.0	0.01%	1	997	GTU Khmelnitsky, Ukraine, UA
30	40138	968.1	0.14%	12	11617	MDNET, US
31	215761	890.5	0.04%	4	3562	MFATIHASAN, TR
32	151350	862.0	0.01%	1	862	NIPPONCOMMSINC-AS-AP NIPPON COMMUNICATIONS INC., JP
33	328410	851.0	0.01%	1	851	FrogFoot-AS, ZA
34	57670	842.8	0.06%	6	5057	ASOPENWAY, UA
35	204318	807.0	0.01%	1	807	BGPTOOLS-QA, GB
36	207847	752.0	0.03%	3	2256	CLOUDBLAST, US
37	269518	752.0	0.05%	5	3760	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
38	138071	752.0	0.01%	1	752	IDNIC-PEMPROV-KALTENG-AS-ID PEMERINTAH PROVINSI KALIMANTAN TENGAH, ID
39	150442	746.0	0.02%	2	1492	BFSACD-AS-AP Bangladesh Fire Service and Civil Defense, BD
40	36719	722.0	0.01%	1	722	MMU-53-AS-NET, US
41	200072	671.5	0.02%	2	1343	VOF-AS, ES
42	263069	655.2	0.09%	11	7207	BRT Comercio de Produtos de Informatica LTDA, BR
43	54746	640.0	0.03%	4	2560	KLAZO-ASN, US
44	328448	631.0	0.01%	1	631	Direction-Generale-Des-Impots-AS, BF
45	12654	626.8	0.17%	22	13790	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
46	151632	614.0	0.02%	2	1228	WASN-AS-AP Web and Soft Network, BD
47	215267	606.0	0.01%	1	606	EFEKAN-RASIT-ZEYBEK, TR
48	21570	599.0	0.02%	104	1797	ACI-1, CA
49	10231	588.1	0.05%	7	4117	TECHTRANS-AP Tech-trans System Ltd., HK
50	215343	581.0	0.01%
Total		78856.2	2.90%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	202.181.232.0/23	12384	0.15%	7540 -- HKCIX-AS-AP HongKong Commercial Internet Exchange, HK
2	207.167.116.0/22	12160	0.14%	7954 -- IMMENSE-NETWORKS, US
3	124.195.190.0/24	11477	0.13%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
4	74.200.129.0/24	11112	0.13%	400552 -- ODYACAD-ASN, US
5	130.137.231.0/24	10541	0.12%	16509 -- AMAZON-02, US
6	55.74.56.0/24	9932	0.12%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.57.0/24	9908	0.12%	335 -- DNIC-ASBLK-00306-00371, US
8	55.27.56.0/24	9833	0.12%	335 -- DNIC-ASBLK-00306-00371, US
9	55.67.56.0/24	9813	0.12%	335 -- DNIC-ASBLK-00306-00371, US
10	55.27.217.0/24	9810	0.12%	335 -- DNIC-ASBLK-00306-00371, US
11	154.72.173.0/24	9371	0.11%	15964 -- CAMNET-AS, CM
12	186.83.117.0/24	8724	0.10%	10620 -- Telmex Colombia S.A., CO
13	192.100.5.0/24	8428	0.10%	207169 -- BRAYDEN-NET, US 401936 -- VALORNODE-TRANSIT, US
14	173.82.125.0/24	8113	0.10%	16509 -- AMAZON-02, US
15	130.137.108.0/24	8089	0.10%	16509 -- AMAZON-02, US
16	102.210.21.0/24	7784	0.09%	328178 -- The-Computer-Hut-AS, ZA
17	130.137.12.0/24	7779	0.09%	16509 -- AMAZON-02, US
18	130.137.230.0/24	7427	0.09%	16509 -- AMAZON-02, US
19	84.205.66.0/24	7267	0.09%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
20	168.0.128.0/22	7110	0.08%	263069 -- BRT Comercio de Produtos de Informatica LTDA, BR
21	130.137.219.0/24	7073	0.08%	16509 -- AMAZON-02, US
22	199.47.232.0/22	7011	0.08%	13341 -- TRANQUILITY, US
23	130.137.79.0/24	6935	0.08%	16509 -- AMAZON-02, US
24	173.82.66.0/24	6817	0.08%	16509 -- AMAZON-02, US
25	130.137.118.0/24	6810	0.08%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
26	130.137.80.0/24	6784	0.08%	16509 -- AMAZON-02, US
27	173.82.67.0/24	6625	0.08%	16509 -- AMAZON-02, US
28	173.82.108.0/24	6583	0.08%	16509 -- AMAZON-02, US
29	130.137.127.0/24	6502	0.08%	16509 -- AMAZON-02, US
30	173.82.63.0/24	6487	0.08%	16509 -- AMAZON-02, US
31	102.23.84.0/22	6442	0.08%	328599 -- Amanet-SARL, TD
32	130.137.99.0/24	6396	0.08%	16509 -- AMAZON-02, US
33	130.137.26.0/24	6365	0.07%	16509 -- AMAZON-02, US
34	130.137.105.0/24	6351	0.07%	16509 -- AMAZON-02, US
35	130.137.140.0/24	6350	0.07%	16509 -- AMAZON-02, US
36	130.137.227.0/24	6275	0.07%	16509 -- AMAZON-02, US
37	67.96.211.0/24	6258	0.07%	3356 -- LEVEL3, US
38	130.137.130.0/24	6245	0.07%	16509 -- AMAZON-02, US
39	130.137.111.0/24	6157	0.07%	16509 -- AMAZON-02, US
40	130.137.28.0/24	6138	0.07%	16509 -- AMAZON-02, US
41	177.46.39.0/24	6113	0.07%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
42	195.114.122.0/24	6086	0.07%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
43	130.137.124.0/24	6068	0.07%	16509 -- AMAZON-02, US
44	195.114.123.0/24	6052	0.07%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
45	130.137.147.0/24	6043	0.07%	16509 -- AMAZON-02, US
46	130.137.47.0/24	6033	0.07%	16509 -- AMAZON-02, US
47	130.137.141.0/24	6026	0.07%	16509 -- AMAZON-02, US
48	130.137.78.0/24	6012	0.07%	16509 -- AMAZON-02, US
49	177.46.36.0/24	5991	0.07%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
50	177.54.152.0/21	5974	0.07%	262287 -- Latitude.sh LTDA, BR
Total		378064	4.44%

14 Day BGP Profile: 4-September-2025 00:00 - 17-September-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	27958810
Number of Prefix Updates:	8169307
Number of Prefix Withdrawals:	332482
Average Prefixes per BGP Update:	0.30
Average BGP Update Messages per second:	23.11
Average Prefix Updates per second:	7.03
Peak BGP Update Message Rate per second:	89347	(23:49:54 Tue, 16-Sep-2025)
Peak Prefix Update Rate per second:	1768	(17:47:07 Sun, 14-Sep-2025)
Peak Prefix Withdraw Rate per second:	15780	(13:10:36 Thu, 4-Sep-2025)
Prefix Count:	1045009
Updated Prefix Count:	823491
Stable Prefix Count:	221518
Origin AS Count:	77365
Updated Origin AS Count:	68142
Stable Origin AS Count:	9223
Unique Path Count:	589443
Updated Path Count:	440576
Stable Path Count:	148867

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.