The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 27 March 2026 06:31 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	418866	2.79%	14726	28.44	AMAZON-02 - Amazon.com, Inc., US
2	328608	386926	2.58%	527	734.20	Africa-on-Cloud-AS, ZA
3	8151	340432	2.27%	12893	26.40	UNINET, MX
4	7552	105863	0.71%	4063	26.06	VIETEL-AS-AP Viettel Group, VN
5	9808	99225	0.66%	13878	7.15	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
6	327700	90148	0.60%	39	2311.49	MoRENet, MZ
7	58224	77900	0.52%	1329	58.62	TCI, IR
8	10620	76943	0.51%	3453	22.28	Telmex Colombia S.A., CO
9	45899	74674	0.50%	3354	22.26	VNPT-AS-VN VNPT Corp, VN
10	7821	74138	0.49%	17	4361.06	ZAYO-MN - Inteliquent, inc., US
11	51375	71680	0.48%	387	185.22	VIVA, BH
12	9829	61804	0.41%	1879	32.89	BSNL-NIB National Internet Backbone, IN
13	39891	57061	0.38%	4972	11.48	ALJAWWALSTC-AS, SA
14	36903	56712	0.38%	1232	46.03	MT-MPLS, MA
15	7713	54358	0.36%	3703	14.68	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
16	9198	52538	0.35%	1082	48.56	KAZTELECOM-AS, KZ
17	335	52512	0.35%	226	232.35	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
18	55933	52429	0.35%	631	83.09	CLOUDIE-AS-AP Cloudie Limited, HK
19	22773	45819	0.31%	4789	9.57	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
20	4538	43978	0.29%	5170	8.51	ERX-CERNET-BKB China Education and Research Network Center, CN
21	29256	43581	0.29%	344	126.69	INT-PDN-STE-AS STE PDN Internal AS, SY
22	647	39159	0.26%	480	81.58	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
23	197207	38852	0.26%	765	50.79	MCCI-AS, IR
24	11776	38451	0.26%	1897	20.27	ATLANTICBB-JOHNSTOWN - Breezeline, US
25	367	37619	0.25%	1760	21.37	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
26	12479	37050	0.25%	7265	5.10	UNI2-AS, ES
27	7155	36732	0.24%	3862	9.51	VIASAT-SP-BACKBONE - ViaSat,Inc., US
28	14638	36149	0.24%	676	53.47	LCPRL - Liberty Communications of Puerto Rico LLC, US
29	20940	36091	0.24%	3964	9.10	AKAMAI-ASN1, NL
30	11492	35576	0.24%	4652	7.65	CABLEONE - CABLE ONE, INC., US
31	174	34563	0.23%	3386	10.21	COGENT-174 - Cogent Communications, LLC, US
32	6147	33860	0.23%	1244	27.22	INTEGRATEL PERU S.A.A., PE
33	11664	33804	0.23%	1460	23.15	Techtel LMDS Comunicaciones Interactivas S.A., AR
34	9009	33428	0.22%	3867	8.64	M247, RO
35	36914	33222	0.22%	575	57.78	KENET-AS, KE
36	37225	32008	0.21%	42	762.10	NETWIDE, ZA
37	17561	31962	0.21%	3168	10.09	LCS-AS-AP LARUS Limited, HK
38	55410	31807	0.21%	1219	26.09	VIL-AS-AP Vodafone Idea Ltd, IN
39	36352	31606	0.21%	2709	11.67	AS-COLOCROSSING - HostPapa, US
40	20057	29514	0.20%	1456	20.27	ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC, US
41	24835	29097	0.19%	2045	14.23	RAYA-AS, EG
42	7029	29088	0.19%	2628	11.07	WINDSTREAM - Windstream Communications LLC, US
43	18403	28935	0.19%	4647	6.23	FPT-AS-AP FPT Telecom Company, VN
44	37294	28680	0.19%	145	197.79	TNM, MW
45	12389	28491	0.19%	3199	8.91	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
46	28202	27802	0.19%	921	30.19	MASTER SA, BR
47	24550	27698	0.18%	64	432.78	WEBSURFERNP-AS-NP Websurfer Nepal Internet Service Provider, NP
48	140292	27021	0.18%	2472	10.93	CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CHINATELECOM Jiangsu province Suzhou 5G network, CN
49	56046	26938	0.18%	3482	7.74	CMNET-JIANGSU-AP China Mobile communications corporation, CN
50	212238	26807	0.18%	2694	9.95	CDNEXT, GB
Total		3279597	21.85%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	13372.5	0.18%	2	26745	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	136225	5379.0	0.07%	2	10758	SMARTTELECOM-AS-AP Smart Telecom, PK
3	7821	4361.1	0.49%	17	74138	ZAYO-MN - Inteliquent, inc., US
4	29469	4286.0	0.06%	2	8572	GTU Khmelnitsky, Ukraine, UA
5	7954	4086.7	0.08%	3	12260	IMMENSE-NETWORKS - Immense Networks, LLC, US
6	213812	3297.0	0.04%	2	6594	ALFATEH, SY
7	51897	2855.0	0.02%	1	2855	MIHAN, IR
8	57670	2463.3	0.10%	6	14780	ASOPENWAY, UA
9	29052	2323.0	0.02%	1	2323	LYCOS-AS Lykos group is among the pioneers that shape the printing market, AT
10	327700	2311.5	0.60%	39	90148	MoRENet, MZ
11	153969	2294.7	0.05%	3	6884	JSCT-AS-AP JVL STAR CABLE TV,INC., PH
12	136867	1996.3	0.04%	3	5989	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
13	328300	1742.0	0.01%	1	1742	Malawi-Bank-AS, MW
14	265566	1663.3	0.03%	3	4990	TELESISTEMAS PENINSULARES SA DE CV, MX
15	13341	1506.8	0.05%	5	7534	TRANQUILITY - Tranquility Internet Services Inc., US
16	33764	1484.7	0.03%	3	4454	AFRINIC-ZA-JNB-AS, MU
17	20325	1394.7	0.03%	3	4184	PATELCOCU - Patelco Credit Union, US
18	271959	1347.5	0.02%	2	2695	BANCO MULTIPLE BHD LEON SA, DO
19	43857	1326.3	0.08%	9	11937	FRAPORT, DE
20	149614	1318.0	0.01%	1	1318	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
21	17866	1277.0	0.01%	1	1277	KISTNET-AS-KR Korea Institute of Science and Technology, KR
22	208644	1261.0	0.01%	1	1261	WISAG, DE
23	267841	1238.0	0.04%	5	6190	GIGAS HOSTING COLOMBIA S.A.S., CO
24	197306	1235.0	0.01%	1	1235	ICL-AS, RU
25	198672	1232.0	0.03%	4	4928	ENET, DE
26	197509	1226.0	0.01%	1	1226	PHARMAMALL, DE
27	21192	1222.3	0.05%	6	7334	DPA-AS, DE
28	35507	1209.8	0.05%	6	7259	BEGASOFT-AS, CH
29	62434	1209.7	0.10%	12	14516	DFS DFS Deutsche Flugsicherung GmbH, DE
30	60254	1208.5	0.03%	4	4834	GLS-IT-SERVICE-AS, DE
31	47432	1208.0	0.01%	1	1208	KLINIKUMFD, DE
32	43509	1202.6	0.04%	5	6013	BANK-VERLAG-GMBH, DE
33	395327	1194.0	0.01%	1	1194	BAYFEDCU - BAY FEDERAL CREDIT UNION, US
34	201955	1192.0	0.01%	1	1192	IQUER-AS, DE
35	328448	1184.0	0.01%	1	1184	Direction-Generale-Des-Impots-AS, BF
36	203952	1136.4	0.04%	5	5682	NS-AS-2, NL
37	35733	1133.0	0.03%	4	4532	EURID ASN for EURid, BE
38	396950	1116.0	0.01%	1	1116	COMSTBARTH-AS - COLLECTIVITE DE SAINT BARTHELEMY, FR
39	40138	1096.4	0.07%	10	10964	MDNET - Mach Dilemma, LLC, US
40	39538	1089.0	0.02%	3	3267	DAKOSY-AS, DE
41	16107	1083.6	0.04%	5	5418	COMMERZBANK, DE
42	152144	1053.0	0.01%	2	2106	LAPL-AS-AP LIGHTSTORM ASIA PTE. LTD., SG
43	148979	1051.0	0.02%	3	3153	FWCPL-AS-AP Fiberworld Communication Pvt. Ltd., NP
44	134467	1051.0	0.01%	1	1051	SMPL-AS-AP Syangja Media, NP
45	34309	1051.0	0.08%	12	12612	LINK11 Link11 GmbH, DE
46	34722	1038.1	0.10%	15	15571	RKU, DE
47	34834	1036.0	0.01%	1	1036	QUIPU-AS, DE
48	205310	990.0	0.03%	5	4950	DE_BEIERSDORF, DE
49	34928	988.0	0.03%	4	3952	REGIOITAACHEN, DE
50	152819	984.5	0.01%
Total		95006.3	2.94%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	103.177.86.0/24	13515	0.09%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	103.177.87.0/24	13230	0.09%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	207.167.116.0/22	12242	0.08%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
4	124.195.190.0/24	11245	0.07%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
5	103.84.53.0/24	10746	0.07%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
6	130.137.231.0/24	10480	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
7	55.74.56.0/24	9225	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.74.57.0/24	9220	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	55.67.56.0/24	9203	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
10	55.27.56.0/24	9186	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
11	55.27.217.0/24	9168	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	186.83.117.0/24	8590	0.06%	10620 -- Telmex Colombia S.A., CO
13	130.137.108.0/24	7844	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	173.82.125.0/24	7835	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	130.137.12.0/24	7662	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
16	199.47.232.0/22	7450	0.05%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
17	84.205.66.0/24	6765	0.04%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
18	173.82.66.0/24	6710	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
19	130.137.80.0/24	6703	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	130.137.219.0/24	6690	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
21	173.82.108.0/24	6604	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
22	130.137.118.0/24	6578	0.04%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
23	173.82.63.0/24	6559	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
24	130.137.79.0/24	6518	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
25	173.82.67.0/24	6432	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	130.137.230.0/24	6427	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	130.137.47.0/24	6324	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	195.114.122.0/24	6316	0.04%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	130.137.99.0/24	6299	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
30	173.82.129.0/24	6276	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
31	193.105.156.0/24	6270	0.04%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
32	130.137.89.0/24	6252	0.04%	14618 -- AMAZON-AES - Amazon.com, Inc., US
33	130.137.105.0/24	6215	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
34	130.137.16.0/24	6213	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	130.137.150.0/24	6204	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
36	130.137.140.0/24	6198	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
37	130.137.78.0/24	6165	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	195.114.123.0/24	6162	0.04%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
39	130.137.26.0/24	6137	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.227.0/24	6130	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.111.0/24	6126	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.127.0/24	6122	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.130.0/24	6108	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	130.137.90.0/24	6049	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.147.0/24	6027	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.133.0/24	5995	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.136.0/24	5985	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.141.0/24	5981	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	103.104.136.0/24	5974	0.04%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
50	130.137.85.0/24	5973	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
Total		370328	2.39%

14 Day BGP Profile: 13-March-2026 00:00 - 26-March-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	35148545
Number of Prefix Updates:	14999475
Number of Prefix Withdrawals:	428766
Average Prefixes per BGP Update:	0.44
Average BGP Update Messages per second:	29.06
Average Prefix Updates per second:	12.75
Peak BGP Update Message Rate per second:	121787	(23:06:08 Thu, 19-Mar-2026)
Peak Prefix Update Rate per second:	17528	(06:07:18 Tue, 17-Mar-2026)
Peak Prefix Withdraw Rate per second:	53796	(23:06:09 Thu, 19-Mar-2026)
Prefix Count:	1082268
Updated Prefix Count:	1071429
Stable Prefix Count:	10839
Origin AS Count:	78281
Updated Origin AS Count:	77981
Stable Origin AS Count:	300
Unique Path Count:	648916
Updated Path Count:	546109
Stable Path Count:	102807

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.