The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 13 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	343408	3.38%	13971	24.58	AMAZON-02, US
2	8151	234531	2.31%	12396	18.92	UNINET, MX
3	10620	98782	0.97%	3879	25.47	Telmex Colombia S.A., CO
4	4155	97828	0.96%	2946	33.21	USDA-1, US
5	15964	94978	0.93%	141	673.60	CAMNET-AS, CM
6	11830	94613	0.93%	1988	47.59	Instituto Costarricense de Electricidad y Telecom., CR
7	28135	90007	0.88%	62	1451.73	ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
8	335	71722	0.70%	214	335.15	DNIC-ASBLK-00306-00371, US
9	17049	65844	0.65%	64	1028.81	MBO-NET, US
10	36903	64092	0.63%	1249	51.31	MT-MPLS, MA
11	262773	59167	0.58%	225	262.96	PROXXIMA TELECOMUNICACOES SA, BR
12	39891	51782	0.51%	4798	10.79	ALJAWWALSTC-AS, SA
13	58224	50942	0.50%	1152	44.22	TCI, IR
14	13188	47402	0.47%	1606	29.52	TRIOLAN, UA
15	11172	47309	0.47%	909	52.05	Alestra, S. de R.L. de C.V., MX
16	28634	45819	0.45%	96	477.28	Life Tecnologia Ltda., BR
17	197207	45167	0.44%	778	58.06	MCCI-AS, IR
18	647	43250	0.43%	409	105.75	DNIC-ASBLK-00616-00665, US
19	64445	40902	0.40%	18	2272.33	AS-NETJOIN, IT
20	9829	39947	0.39%	1829	21.84	BSNL-NIB National Internet Backbone, IN
21	51559	38917	0.38%	129	301.68	NETINTERNET Netinternet Bilisim Teknolojileri AS, TR
22	9848	37030	0.36%	263	140.80	SEJONGTELECOM-AS-KR SEJONG NETWORKS, KR
23	6503	36310	0.36%	1026	35.39	Axtel, S.A.B. de C.V., MX
24	367	34405	0.34%	2747	12.52	DNIC-ASBLK-00306-00371, US
25	36914	33530	0.33%	590	56.83	KENET-AS, KE
26	262323	30865	0.30%	52	593.56	STAR CONECT TELECOM LTDA, BR
27	7552	30401	0.30%	3998	7.60	VIETEL-AS-AP Viettel Group, VN
28	28171	30310	0.30%	84	360.83	S. O. do Brasil Telecomunicacoes LTDA ME, BR
29	334	29588	0.29%	46	643.22	DNIC-ASBLK-00306-00371, US
30	5371	29289	0.29%	290	101.00	DNIC-ASBLK-05120-05376, US
31	34984	28645	0.28%	2405	11.91	TELLCOM-AS, TR
32	20473	28374	0.28%	1495	18.98	AS-VULTR, US
33	210538	28273	0.28%	26	1087.42	KEYUBU, TR
34	209737	28148	0.28%	37	760.76	AS209737, TR
35	263069	27437	0.27%	11	2494.27	BRT Comercio de Produtos de Informatica LTDA, BR
36	28657	27409	0.27%	3	9136.33	MD Brasil - Tecnologia da Informacao Ltda, BR
37	7018	27265	0.27%	1613	16.90	ATT-INTERNET4, US
38	11259	26498	0.26%	81	327.14	ANGOLATELECOM, AO
39	17794	26464	0.26%	13	2035.69	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
40	44244	26096	0.26%	442	59.04	IRANCELL-AS, IR
41	28652	25664	0.25%	40	641.60	Telecomunicacoes Nordeste Ltda., BR
42	984	25604	0.25%	624	41.03	OWS-NETWORK, US
43	398704	24882	0.24%	210	118.49	STACKSINC-BACKBONE, US
44	36947	24131	0.24%	504	47.88	ALGTEL-AS, DZ
45	22884	24029	0.24%	1079	22.27	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
46	8551	23498	0.23%	1626	14.45	BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbone, IL
47	203020	23388	0.23%	1536	15.23	HOSTROYALE, IN
48	174	22995	0.23%	4217	5.45	COGENT-174, US
49	12479	22904	0.23%	7623	3.00	UNI2-AS, ES
50	29256	22188	0.22%	375	59.17	INT-PDN-STE-AS STE PDN Internal AS, SY
Total		2572029	25.30%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	28657	9136.3	0.27%	3	27409	MD Brasil - Tecnologia da Informacao Ltda, BR
2	63376	8221.0	0.16%	2	16442	TOUCHTONE-CUSTS, US
3	138071	6369.0	0.06%	1	6369	IDNIC-PEMPROV-KALTENG-AS-ID PEMERINTAH PROVINSI KALIMANTAN TENGAH, ID
4	396950	6145.0	0.06%	1	6145	COMSTBARTH-AS, FR
5	329312	5846.0	0.06%	1	5846	Manano-Telecommunication-SARL, TD
6	32685	5733.0	0.06%	1	5733	AEG-VISION, US
7	7954	4360.7	0.13%	3	13082	IMMENSE-NETWORKS, US
8	265566	3683.8	0.18%	5	18419	TELESISTEMAS PENINSULARES SA DE CV, MX
9	886	3594.0	0.04%	1	3594	SBH-IX-SERVICES, FR
10	25048	2932.7	0.09%	5	8798	DSNET DSNet, GB
11	20067	2893.0	0.03%	1	2893	NAS-GHENT, US
12	131763	2626.0	0.05%	2	5252	IDNIC-TADULAKO-AS-ID Universitas Tadulako, ID
13	263069	2494.3	0.27%	11	27437	BRT Comercio de Produtos de Informatica LTDA, BR
14	214094	2492.0	0.02%	1	2492	OSSERVATORIO-NESSUNO, IT
15	207989	2431.0	0.02%	1	2431	AS_GOLDENDATA, IT
16	37297	2418.0	0.02%	1	2418	OAU-Ife, NG
17	214294	2388.0	0.07%	4	7164	NOOBNET, GB
18	153978	2307.3	0.07%	3	6922	IDNIC-SAKOMTA-AS-ID PT Sarana Komunikasi Semesta, ID
19	64445	2272.3	0.40%	18	40902	AS-NETJOIN, IT
20	32826	2212.0	0.02%	1	2212	TZPRINT, US
21	136867	2082.3	0.06%	3	6247	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
22	17794	2035.7	0.26%	13	26464	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
23	7540	1973.3	0.14%	118	13813	HKCIX-AS-AP HongKong Commercial Internet Exchange, HK
24	328448	1973.0	0.02%	1	1973	Direction-Generale-Des-Impots-AS, BF
25	267035	1909.8	0.09%	5	9549	MS TELECOM LTDA ME, BR
26	8369	1890.2	0.20%	58	20792	INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
27	13341	1836.0	0.07%	5	7344	TRANQUILITY, US
28	328599	1812.7	0.05%	3	5438	Amanet-SARL, TD
29	265953	1763.2	0.07%	4	7053	INNOVA TECNOLOGIA E SERVICOS LTDA., BR
30	267051	1678.0	0.03%	2	3356	Nexus Fibra Telecomunicacoes LTDA, BR
31	400786	1653.0	0.02%	1	1653	PFS, US
32	268827	1642.0	0.02%	1	1642	MORAIS & VALE GM NET LTDA, BR
33	268975	1638.0	0.02%	1	1638	GLOBAL TELECOM SERVICOS DE COMUNICACAO E MULTIMIDI, BR
34	266064	1633.0	0.02%	1	1633	SUPERNET INFORMATICA E SERVICOS, BR
35	268908	1628.0	0.02%	1	1628	HIPERTV SERVICOS DE COMUNICACAO MULTIMIDIA LTDA, BR
36	268604	1623.8	0.08%	5	8119	SILAS E F DE AQUINO ELETROELETRONICOS, BR
37	136103	1623.8	0.06%	4	6495	IDNIC-USM-AS-ID Universitas Semarang, ID
38	272703	1612.0	0.02%	1	1612	MYLINK SERVICO DE COMUNICACAO MULTIMIDIA EIRELI, BR
39	268677	1602.0	0.02%	1	1602	DLCOM-DADOS LINKS E COMERCIO LTDA, BR
40	268159	1601.0	0.02%	1	1601	CD TELECOMUNICACOES LTDA, BR
41	267305	1593.0	0.02%	1	1593	G & N SERVICOS DE COMUNICACAO E MULTIMIDIA LTDA, BR
42	266363	1588.0	0.02%	1	1588	G & M SERVICOS DE COMUNICACAO E MULTIMIDIA LTDA-ME, BR
43	137258	1577.0	0.02%	1	1577	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
44	266086	1572.7	0.05%	3	4718	NET BAIO PROVEDOR DE INTERNET EIRELI - ME, BR
45	271469	1571.0	0.02%	1	1571	SPEEDNET TELECOM, BR
46	265201	1571.0	0.02%	1	1571	MEGANET SERVICOS DE COMUNICACAO E MULTIMIDIA LTDA, BR
47	61701	1567.4	0.12%	8	12539	NARCELIO L DE SOUZA - ME, BR
48	264564	1561.7	0.05%	3	4685	Telecab Telecomunicacoes Ltda, BR
49	61740	1558.0	0.03%	2	3116	Telecab Telecomunicacoes Ltda, BR
50	52683	1557.0	0.02%
Total		131483	3.74%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	177.46.36.0/24	29741	0.28%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
2	177.46.39.0/24	29558	0.28%	28135 -- ASSOCIACAO NACIONAL PARA INCLUSAO DIGITAL - ANID, BR
3	138.99.97.0/24	27389	0.26%	28657 -- MD Brasil - Tecnologia da Informacao Ltda, BR
4	168.0.128.0/22	27350	0.26%	263069 -- BRT Comercio de Produtos de Informatica LTDA, BR
5	188.213.84.0/23	19432	0.18%	20473 -- AS-VULTR, US
6	45.172.92.0/22	18350	0.17%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
7	140.174.37.0/24	16436	0.16%	63376 -- TOUCHTONE-CUSTS, US
8	181.233.80.0/22	16013	0.15%	268314 -- EWERTON DA SILVA LOPES TELECOMUNICACOES, BR 271482 -- MEGA TELECOM FIBRA, BR
9	130.137.231.0/24	14670	0.14%	16509 -- AMAZON-02, US
10	55.74.57.0/24	14247	0.14%	335 -- DNIC-ASBLK-00306-00371, US
11	55.74.56.0/24	14240	0.14%	335 -- DNIC-ASBLK-00306-00371, US
12	124.195.190.0/24	14213	0.14%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
13	202.181.232.0/23	13739	0.13%	7540 -- HKCIX-AS-AP HongKong Commercial Internet Exchange, HK
14	164.159.252.0/24	13248	0.13%	22284 -- AS22284-DOI-OPS, US
15	207.167.116.0/22	13073	0.12%	7954 -- IMMENSE-NETWORKS, US
16	185.56.142.0/23	12894	0.12%	59865 -- IVM, NL
17	186.83.117.0/24	12398	0.12%	10620 -- Telmex Colombia S.A., CO
18	195.24.192.0/20	12177	0.12%	15964 -- CAMNET-AS, CM
19	55.27.217.0/24	12166	0.12%	335 -- DNIC-ASBLK-00306-00371, US
20	55.67.56.0/24	12162	0.12%	335 -- DNIC-ASBLK-00306-00371, US
21	55.27.56.0/24	12161	0.12%	335 -- DNIC-ASBLK-00306-00371, US
22	193.10.255.0/24	11468	0.11%	2603 -- NORDUNET, DK
23	130.137.108.0/24	10438	0.10%	16509 -- AMAZON-02, US
24	102.210.21.0/24	10327	0.10%	328178 -- The-Computer-Hut-AS, ZA
25	130.137.12.0/24	10226	0.10%	16509 -- AMAZON-02, US
26	130.137.230.0/24	9791	0.09%	16509 -- AMAZON-02, US
27	84.205.66.0/24	9360	0.09%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
28	67.96.211.0/24	9329	0.09%	3356 -- LEVEL3, US
29	203.145.78.0/24	8824	0.08%	17794 -- HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
30	203.145.74.0/24	8811	0.08%	17794 -- HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
31	202.45.88.0/24	8805	0.08%	17794 -- HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
32	130.137.219.0/24	8580	0.08%	16509 -- AMAZON-02, US
33	130.137.79.0/24	8539	0.08%	16509 -- AMAZON-02, US
34	130.137.80.0/24	8433	0.08%	16509 -- AMAZON-02, US
35	130.137.124.0/24	8408	0.08%	16509 -- AMAZON-02, US
36	130.137.28.0/24	8403	0.08%	16509 -- AMAZON-02, US
37	173.82.66.0/24	8396	0.08%	16509 -- AMAZON-02, US
38	115.189.240.0/20	8274	0.08%	4771 -- SPARKNZ Spark New Zealand Trading Ltd., NZ
39	130.137.227.0/24	8258	0.08%	16509 -- AMAZON-02, US
40	41.204.73.0/24	8188	0.08%	15964 -- CAMNET-AS, CM
41	130.137.26.0/24	8138	0.08%	16509 -- AMAZON-02, US
42	130.137.140.0/24	8119	0.08%	16509 -- AMAZON-02, US
43	130.137.105.0/24	8112	0.08%	16509 -- AMAZON-02, US
44	130.137.111.0/24	8064	0.08%	16509 -- AMAZON-02, US
45	130.137.147.0/24	8041	0.08%	16509 -- AMAZON-02, US
46	130.137.127.0/24	8036	0.08%	16509 -- AMAZON-02, US
47	130.137.16.0/24	8033	0.08%	16509 -- AMAZON-02, US
48	130.137.99.0/24	8027	0.08%	16509 -- AMAZON-02, US
49	130.137.150.0/24	8010	0.08%	16509 -- AMAZON-02, US
50	130.137.85.0/24	8006	0.08%	16509 -- AMAZON-02, US
Total		609101	5.84%

14 Day BGP Profile: 30-July-2025 00:00 - 12-August-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	24180386
Number of Prefix Updates:	10173667
Number of Prefix Withdrawals:	331375
Average Prefixes per BGP Update:	0.43
Average BGP Update Messages per second:	19.99
Average Prefix Updates per second:	8.68
Peak BGP Update Message Rate per second:	52367	(12:03:44 Wed, 30-Jul-2025)
Peak Prefix Update Rate per second:	673	(09:57:27 Thu, 31-Jul-2025)
Peak Prefix Withdraw Rate per second:	18870	(12:03:44 Wed, 30-Jul-2025)
Prefix Count:	1036734
Updated Prefix Count:	691324
Stable Prefix Count:	345410
Origin AS Count:	77223
Updated Origin AS Count:	62599
Stable Origin AS Count:	14624
Unique Path Count:	597130
Updated Path Count:	437029
Stable Path Count:	160101

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.