The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 09 August 2025 06:23 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	334543	3.41%	13946	23.99	AMAZON-02, US
2	8151	259140	2.64%	12394	20.91	UNINET, MX
3	10620	107828	1.10%	3885	27.75	Telmex Colombia S.A., CO
4	11830	97922	1.00%	1988	49.26	Instituto Costarricense de Electricidad y Telecom., CR
5	4155	94360	0.96%	2933	32.17	USDA-1, US
6	15964	92435	0.94%	142	650.95	CAMNET-AS, CM
7	28135	79793	0.81%	62	1286.98	ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
8	17049	70577	0.72%	64	1102.77	MBO-NET, US
9	51559	69786	0.71%	129	540.98	NETINTERNET Netinternet Bilisim Teknolojileri AS, TR
10	36903	66597	0.68%	1249	53.32	MT-MPLS, MA
11	13188	62101	0.63%	1606	38.67	TRIOLAN, UA
12	58224	60673	0.62%	1166	52.04	TCI, IR
13	335	51981	0.53%	213	244.04	DNIC-ASBLK-00306-00371, US
14	334	51384	0.52%	46	1117.04	DNIC-ASBLK-00306-00371, US
15	197207	47423	0.48%	775	61.19	MCCI-AS, IR
16	647	45862	0.47%	410	111.86	DNIC-ASBLK-00616-00665, US
17	9829	45466	0.46%	1830	24.84	BSNL-NIB National Internet Backbone, IN
18	11172	43101	0.44%	906	47.57	Alestra, S. de R.L. de C.V., MX
19	39891	37994	0.39%	4798	7.92	ALJAWWALSTC-AS, SA
20	367	36029	0.37%	2728	13.21	DNIC-ASBLK-00306-00371, US
21	11432	32059	0.33%	163	196.68	Telium Telecomunicacoes Ltda, BR
22	36914	31602	0.32%	590	53.56	KENET-AS, KE
23	34984	31465	0.32%	2405	13.08	TELLCOM-AS, TR
24	44244	31013	0.32%	435	71.29	IRANCELL-AS, IR
25	28171	30710	0.31%	84	365.60	S. O. do Brasil Telecomunicacoes LTDA ME, BR
26	263069	28426	0.29%	12	2368.83	BRT Comercio de Produtos de Informatica LTDA, BR
27	28657	27847	0.28%	3	9282.33	MD Brasil - Tecnologia da Informacao Ltda, BR
28	6503	27695	0.28%	1026	26.99	Axtel, S.A.B. de C.V., MX
29	5371	27303	0.28%	288	94.80	DNIC-ASBLK-05120-05376, US
30	262907	27017	0.28%	627	43.09	BRASIL TECPAR \| AMIGO \| AVATO, BR
31	20473	26957	0.27%	1501	17.96	AS-VULTR, US
32	11259	26408	0.27%	81	326.02	ANGOLATELECOM, AO
33	209737	25394	0.26%	37	686.32	AS209737, TR
34	42337	24928	0.25%	686	36.34	RESPINA-AS, IR
35	29256	24902	0.25%	411	60.59	INT-PDN-STE-AS STE PDN Internal AS, SY
36	17794	24716	0.25%	13	1901.23	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
37	45899	23673	0.24%	3746	6.32	VNPT-AS-VN VNPT Corp, VN
38	7552	23390	0.24%	3992	5.86	VIETEL-AS-AP Viettel Group, VN
39	18403	23119	0.24%	4601	5.02	FPT-AS-AP FPT Telecom Company, VN
40	210538	22788	0.23%	26	876.46	KEYUBU, TR
41	63376	22779	0.23%	2	11389.50	TOUCHTONE-CUSTS, US
42	8551	21566	0.22%	1626	13.26	BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbone, IL
43	28130	21560	0.22%	95	226.95	CERTTO TELECOMUNICACOES LTDA EPP., BR
44	262773	21372	0.22%	226	94.57	PROXXIMA TELECOMUNICACOES SA, BR
45	23473	20960	0.21%	698	30.03	PAVLOVMEDIA, US
46	9848	20895	0.21%	262	79.75	SEJONGTELECOM-AS-KR SEJONG NETWORKS, KR
47	8369	20753	0.21%	58	357.81	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
48	4755	20524	0.21%	2189	9.38	TATACOMM-AS TATA Communications formerly VSNL is Leading ISP, IN
49	24757	19518	0.20%	448	43.57	EthioNet-AS, ET
50	265566	19469	0.20%	5	3893.80	TELESISTEMAS PENINSULARES SA DE CV, MX
Total		2505803	25.52%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	63376	11389.5	0.23%	2	22779	TOUCHTONE-CUSTS, US
2	32685	9367.0	0.10%	1	9367	AEG-VISION, US
3	28657	9282.3	0.28%	3	27847	MD Brasil - Tecnologia da Informacao Ltda, BR
4	136103	8584.0	0.09%	4	8584	IDNIC-USM-AS-ID Universitas Semarang, ID
5	329312	7742.0	0.08%	1	7742	Manano-Telecommunication-SARL, TD
6	396950	5296.0	0.05%	1	5296	COMSTBARTH-AS, FR
7	7954	4373.3	0.13%	3	13120	IMMENSE-NETWORKS, US
8	138071	4251.0	0.04%	1	4251	IDNIC-PEMPROV-KALTENG-AS-ID PEMERINTAH PROVINSI KALIMANTAN TENGAH, ID
9	265566	3893.8	0.20%	5	19469	TELESISTEMAS PENINSULARES SA DE CV, MX
10	59865	3348.0	0.14%	19	13392	IVM, NL
11	886	3137.0	0.03%	1	3137	SBH-IX-SERVICES, FR
12	153978	2952.7	0.09%	3	8858	IDNIC-SAKOMTA-AS-ID PT Sarana Komunikasi Semesta, ID
13	25048	2860.0	0.09%	5	8580	DSNET DSNet, GB
14	265953	2848.2	0.12%	4	11393	INNOVA TECNOLOGIA E SERVICOS LTDA., BR
15	214294	2480.7	0.08%	4	7442	NOOBNET, GB
16	37297	2406.0	0.02%	1	2406	OAU-Ife, NG
17	263069	2368.8	0.29%	12	28426	BRT Comercio de Produtos de Informatica LTDA, BR
18	32826	2233.0	0.02%	1	2233	TZPRINT, US
19	131763	2192.5	0.04%	2	4385	IDNIC-TADULAKO-AS-ID Universitas Tadulako, ID
20	136867	2055.7	0.06%	3	6167	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
21	37462	2055.5	0.08%	4	8222	Prestabist, TD
22	20067	2046.0	0.02%	1	2046	NAS-GHENT, US
23	328448	2032.0	0.02%	1	2032	Direction-Generale-Des-Impots-AS, BF
24	7540	2008.3	0.14%	118	14058	HKCIX-AS-AP HongKong Commercial Internet Exchange, HK
25	17794	1901.2	0.25%	13	24716	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
26	8369	1886.6	0.21%	58	20753	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
27	13341	1830.2	0.07%	5	7321	TRANQUILITY, US
28	57405	1563.0	0.02%	1	1563	MIHAN-NOC2, IR
29	400786	1555.0	0.02%	1	1555	PFS, US
30	206097	1553.0	0.02%	1	1553	GAMESHIELD, GB
31	271482	1508.2	0.08%	5	7541	MEGA TELECOM FIBRA, BR
32	51897	1502.0	0.02%	1	1502	MIHAN, IR
33	137258	1480.0	0.02%	1	1480	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
34	33764	1397.0	0.03%	3	2794	AFRINIC-ZA-JNB-AS, MU
35	2603	1388.1	0.11%	11	11105	NORDUNET, DK
36	28135	1287.0	0.81%	62	79793	ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
37	328599	1221.0	0.04%	3	3663	Amanet-SARL, TD
38	215391	1219.4	0.06%	5	6097	HOSTABIL, TR
39	131578	1214.0	0.01%	1	1214	BFSUNET Beijing Foreign Studies University, CN
40	40138	1206.8	0.11%	12	10861	MDNET, US
41	270168	1172.5	0.02%	2	2345	Alejandro Uballe Montoya, MX
42	270973	1165.0	0.08%	7	8155	ZERBINATTI & SANTOS MULTIMIDIA LTDA, BR
43	30172	1123.0	0.01%	3	1123	FAMC-1, US
44	334	1117.0	0.52%	46	51384	DNIC-ASBLK-00306-00371, US
45	271084	1116.8	0.05%	4	4467	TRYMNET PROVEDOR, BR
46	17049	1102.8	0.72%	64	70577	MBO-NET, US
47	204318	1087.0	0.01%	1	1087	BGPTOOLS-QA, GB
48	212521	1079.0	0.01%	1	1079	BLURPX, TR
49	329123	1059.0	0.01%	1	1059	RPNL1-AS, NG
50	132398	1055.0	0.01%
Total		135992.9	5.76%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	177.46.39.0/24	31039	0.31%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
2	177.46.36.0/24	29589	0.29%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
3	168.0.128.0/22	28333	0.28%	263069 -- BRT Comercio de Produtos de Informatica LTDA, BR
4	138.99.97.0/24	27831	0.27%	28657 -- MD Brasil - Tecnologia da Informacao Ltda, BR
5	140.174.37.0/24	22775	0.22%	63376 -- TOUCHTONE-CUSTS, US
6	45.172.92.0/22	19394	0.19%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
7	188.213.84.0/23	18502	0.18%	20473 -- AS-VULTR, US
8	181.233.80.0/22	17774	0.18%	268314 -- EWERTON DA SILVA LOPES TELECOMUNICACOES, BR 271482 -- MEGA TELECOM FIBRA, BR
9	130.137.231.0/24	14795	0.15%	16509 -- AMAZON-02, US
10	124.195.190.0/24	14378	0.14%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
11	202.181.232.0/23	13992	0.14%	7540 -- HKCIX-AS-AP HongKong Commercial Internet Exchange, HK
12	185.56.142.0/23	13386	0.13%	59865 -- IVM, NL
13	207.167.116.0/22	13114	0.13%	7954 -- IMMENSE-NETWORKS, US
14	195.24.192.0/20	12598	0.12%	15964 -- CAMNET-AS, CM
15	186.83.117.0/24	12496	0.12%	10620 -- Telmex Colombia S.A., CO
16	164.163.52.0/22	11304	0.11%	265953 -- INNOVA TECNOLOGIA E SERVICOS LTDA., BR
17	193.10.255.0/24	10936	0.11%	2603 -- NORDUNET, DK
18	55.74.56.0/24	10869	0.11%	335 -- DNIC-ASBLK-00306-00371, US
19	55.74.57.0/24	10864	0.11%	335 -- DNIC-ASBLK-00306-00371, US
20	130.137.108.0/24	10473	0.10%	16509 -- AMAZON-02, US
21	130.137.12.0/24	10225	0.10%	16509 -- AMAZON-02, US
22	164.159.252.0/24	9910	0.10%	22284 -- AS22284-DOI-OPS, US
23	130.137.230.0/24	9860	0.10%	16509 -- AMAZON-02, US
24	84.205.66.0/24	9722	0.10%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
25	55.67.56.0/24	9551	0.09%	335 -- DNIC-ASBLK-00306-00371, US
26	55.27.56.0/24	9550	0.09%	335 -- DNIC-ASBLK-00306-00371, US
27	55.27.217.0/24	9548	0.09%	335 -- DNIC-ASBLK-00306-00371, US
28	161.199.252.0/24	9367	0.09%	32685 -- AEG-VISION, US
29	130.137.219.0/24	8676	0.09%	16509 -- AMAZON-02, US
30	103.134.214.0/24	8584	0.08%	136103 -- IDNIC-USM-AS-ID Universitas Semarang, ID
31	173.82.66.0/24	8529	0.08%	16509 -- AMAZON-02, US
32	130.137.79.0/24	8519	0.08%	16509 -- AMAZON-02, US
33	130.137.80.0/24	8489	0.08%	16509 -- AMAZON-02, US
34	130.137.124.0/24	8487	0.08%	16509 -- AMAZON-02, US
35	130.137.28.0/24	8410	0.08%	16509 -- AMAZON-02, US
36	130.137.227.0/24	8329	0.08%	16509 -- AMAZON-02, US
37	203.145.74.0/24	8241	0.08%	17794 -- HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
38	203.145.78.0/24	8230	0.08%	17794 -- HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
39	202.45.88.0/24	8222	0.08%	17794 -- HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
40	130.137.140.0/24	8214	0.08%	16509 -- AMAZON-02, US
41	130.137.105.0/24	8183	0.08%	16509 -- AMAZON-02, US
42	130.137.26.0/24	8133	0.08%	16509 -- AMAZON-02, US
43	130.137.127.0/24	8114	0.08%	16509 -- AMAZON-02, US
44	130.137.147.0/24	8113	0.08%	16509 -- AMAZON-02, US
45	130.137.81.0/24	8103	0.08%	16509 -- AMAZON-02, US
46	173.82.108.0/24	8098	0.08%	16509 -- AMAZON-02, US
47	130.137.136.0/24	8090	0.08%	16509 -- AMAZON-02, US
48	130.137.16.0/24	8080	0.08%	16509 -- AMAZON-02, US
49	130.137.150.0/24	8067	0.08%	16509 -- AMAZON-02, US
50	130.137.99.0/24	8060	0.08%	16509 -- AMAZON-02, US
Total		604146	5.92%

14 Day BGP Profile: 26-July-2025 00:00 - 8-August-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	23125403
Number of Prefix Updates:	9821632
Number of Prefix Withdrawals:	323694
Average Prefixes per BGP Update:	0.44
Average BGP Update Messages per second:	19.12
Average Prefix Updates per second:	8.39
Peak BGP Update Message Rate per second:	52367	(12:03:44 Wed, 30-Jul-2025)
Peak Prefix Update Rate per second:	660	(08:48:14 Thu, 31-Jul-2025)
Peak Prefix Withdraw Rate per second:	22855	(09:57:33 Wed, 30-Jul-2025)
Prefix Count:	1036337
Updated Prefix Count:	689289
Stable Prefix Count:	347048
Origin AS Count:	77197
Updated Origin AS Count:	63358
Stable Origin AS Count:	13839
Unique Path Count:	602375
Updated Path Count:	448236
Stable Path Count:	154139

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.