The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 22 March 2026 06:40 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	45899	3587398	15.87%	3347	1071.82	VNPT-AS-VN VNPT Corp, VN
2	9198	1384589	6.13%	1082	1279.66	KAZTELECOM-AS, KZ
3	4538	1071396	4.74%	5157	207.76	ERX-CERNET-BKB China Education and Research Network Center, CN
4	135905	434812	1.92%	332	1309.67	VNPT-AS-VN VIETNAM POSTS AND TELECOMMUNICATIONS GROUP, VN
5	16509	419107	1.85%	14683	28.54	AMAZON-02 - Amazon.com, Inc., US
6	328608	403036	1.78%	567	710.82	Africa-on-Cloud-AS, ZA
7	8151	287233	1.27%	12878	22.30	UNINET, MX
8	4670	259642	1.15%	357	727.29	HYUNDAI-KR Shinbiro, KR
9	23764	181331	0.80%	182	996.32	CTGNET CTGNet, HK
10	51375	168936	0.75%	387	436.53	VIVA, BH
11	9952	148093	0.66%	174	851.11	HOSTWAY-AS-KR Hostway IDC, KR
12	7552	123712	0.55%	4082	30.31	VIETEL-AS-AP Viettel Group, VN
13	9848	109014	0.48%	147	741.59	SEJONGTELECOM-AS-KR SEJONG NETWORKS, KR
14	58224	108823	0.48%	1299	83.77	TCI, IR
15	36903	87601	0.39%	1232	71.10	MT-MPLS, MA
16	10620	86326	0.38%	3454	24.99	Telmex Colombia S.A., CO
17	7821	73831	0.33%	17	4343.00	ZAYO-MN - Inteliquent, inc., US
18	9808	71858	0.32%	13858	5.19	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
19	7713	69774	0.31%	3694	18.89	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
20	12479	55683	0.25%	7301	7.63	UNI2-AS, ES
21	335	55634	0.25%	226	246.17	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
22	7643	54312	0.24%	80	678.90	VNPT-AS-VN Vietnam Posts and Telecommunications VNPT, VN
23	39891	53348	0.24%	4969	10.74	ALJAWWALSTC-AS, SA
24	55933	50834	0.22%	633	80.31	CLOUDIE-AS-AP Cloudie Limited, HK
25	9829	48657	0.22%	1898	25.64	BSNL-NIB National Internet Backbone, IN
26	647	45143	0.20%	511	88.34	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
27	24173	44940	0.20%	259	173.51	NETNAM-AS-AP Netnam Company, VN
28	24085	43856	0.19%	106	413.74	QTSC-AS-VN Quang Trung Software City Development Company, VN
29	367	43849	0.19%	1798	24.39	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
30	36902	42773	0.19%	41	1043.24	ASINTELVISION, SC
31	11492	41496	0.18%	4647	8.93	CABLEONE - CABLE ONE, INC., US
32	18046	41487	0.18%	131	316.69	DONGFONG-TW DongFong Technology Co. Ltd., TW
33	131866	41293	0.18%	62	666.02	DEK-AS-KR Digital Edge Korea, KR
34	22773	38056	0.17%	4790	7.94	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
35	18403	37584	0.17%	4702	7.99	FPT-AS-AP FPT Telecom Company, VN
36	55410	36695	0.16%	1217	30.15	VIL-AS-AP Vodafone Idea Ltd, IN
37	17561	36422	0.16%	3206	11.36	LCS-AS-AP LARUS Limited, HK
38	140292	35154	0.16%	2472	14.22	CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CHINATELECOM Jiangsu province Suzhou 5G network, CN
39	45090	34149	0.15%	2190	15.59	TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN
40	29256	33818	0.15%	351	96.35	INT-PDN-STE-AS STE PDN Internal AS, SY
41	37225	32760	0.14%	42	780.00	NETWIDE, ZA
42	12389	32473	0.14%	3203	10.14	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
43	9009	32088	0.14%	3849	8.34	M247, RO
44	9980	31497	0.14%	62	508.02	LDCC-AS-KR LOTTE INNOVATE Co.,Ltd, KR
45	20473	31277	0.14%	1702	18.38	AS-VULTR - The Constant Company, LLC, US
46	327700	31210	0.14%	39	800.26	MoRENet, MZ
47	212238	31007	0.14%	2682	11.56	CDNEXT, GB
48	20940	30659	0.14%	3965	7.73	AKAMAI-ASN1, NL
49	63737	30449	0.13%	44	692.02	VIETSERVER-AS-VN VIETSERVER SERVICES TECHNOLOGY COMPANY LIMITED, VN
50	36914	30210	0.13%	576	52.45	KENET-AS, KE
Total		10305325	45.59%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	12994.5	0.12%	2	25989	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	7821	4343.0	0.33%	17	73831	ZAYO-MN - Inteliquent, inc., US
3	29469	4082.5	0.04%	2	8165	GTU Khmelnitsky, Ukraine, UA
4	7954	3814.0	0.05%	3	11442	IMMENSE-NETWORKS - Immense Networks, LLC, US
5	136225	3575.3	0.05%	3	10726	SMARTTELECOM-AS-AP Smart Telecom, PK
6	51897	3129.0	0.01%	1	3129	MIHAN, IR
7	213812	3052.5	0.03%	2	6105	ALFATEH, SY
8	57670	2931.8	0.08%	6	17591	ASOPENWAY, UA
9	136867	2158.7	0.03%	3	6476	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
10	40138	2060.5	0.05%	6	12363	MDNET - Mach Dilemma, LLC, US
11	265566	1882.3	0.02%	3	5647	TELESISTEMAS PENINSULARES SA DE CV, MX
12	17866	1781.0	0.01%	1	1781	KISTNET-AS-KR Korea Institute of Science and Technology, KR
13	267841	1668.6	0.04%	5	8343	GIGAS HOSTING COLOMBIA S.A.S., CO
14	149074	1637.3	0.02%	3	4912	UMP-AS-VN University of Medicine and Pharmacy at Ho Chi Minh City, VN
15	150203	1628.0	0.01%	1	1628	IDNIC-CHINATELECOMGLOBAL-AS-ID PT. CHINA TELECOM INDONESIA, ID
16	131941	1570.5	0.03%	4	6282	ENTSU-NET Entsu Co.,Ltd., JP
17	149068	1568.0	0.01%	1	1568	INETSOFT-AS-VN iNET software one member company limited, VN
18	136167	1552.4	0.09%	13	20181	CHINATELECOM-AS-AP CHINA TELECOM MACAU COMPANY LIMITED, MO
19	20325	1542.0	0.02%	3	4626	PATELCOCU - Patelco Credit Union, US
20	271959	1538.0	0.01%	2	3076	BANCO MULTIPLE BHD LEON SA, DO
21	13341	1526.4	0.03%	5	7632	TRANQUILITY - Tranquility Internet Services Inc., US
22	151867	1524.0	0.01%	2	3048	DONGNAI-VN Department of Science and Technology of Dong Nai province, VN
23	63527	1522.8	0.04%	6	9137	CTGL-AS China Telecom Global Limited, HK
24	151913	1475.0	0.01%	2	2950	HAGIANG-VN Ha Giang province Department of Information and Communications, VN
25	33764	1419.7	0.02%	3	4259	AFRINIC-ZA-JNB-AS, MU
26	265046	1380.3	0.02%	3	4141	NET-MAIS INFORMATICA, BR
27	135989	1379.0	0.01%	1	1379	TAYNINH-AS-VN Tay Ninh Department of Information and Communications, VN
28	135982	1377.5	0.01%	2	2755	HASD-AS-VN Hoi An South Development Ltd, VN
29	135939	1374.2	0.02%	4	5497	VNPTEPAY-AS-VN VNPT Electronic Payment Joint Stock Company, VN
30	131363	1372.7	0.02%	3	4118	GDT-AS-VN Department of Information Technology - General Department of Taxation, VN
31	135956	1371.0	0.02%	3	4113	MOH-AS-VN The Authority of Information Technology - Ministry of Health, VN
32	135972	1370.0	0.01%	1	1370	ICTQUANGNAM-AS-VN Quang Nam Department of Information and Communications, VN
33	140768	1368.0	0.01%	1	1368	GIALAI-VN Department of Science and Technology Gia Lai, VN
34	152992	1365.5	0.01%	2	2731	DATAONLINE-VN ONLINE DATA COMPANY LIMITED, VN
35	131131	1365.0	0.01%	1	1365	VNNIC-AS-VN VNNIC-AS-, VN
36	140758	1363.0	0.01%	1	1363	CAMAU-AS-VN Department of Science and Technology of Ca Mau province, VN
37	131122	1361.0	0.01%	1	1361	VNNIC-4-BYTE-AS-VN Vietnam Internet network information center VNNIC, VN
38	63752	1357.0	0.01%	1	1357	PTO-KHCN-VN Department of Science and Technology of Phu Tho province, VN
39	152933	1356.5	0.02%	4	5426	ZONECLOUD-VN ZONECLOUD TECHNOLOGY JOINT STOCK COMPANY, VN
40	149120	1355.0	0.01%	2	2710	BLUETECH-VN BLUE TECHNOLOGY AND INVESTMENT COMPANY LIMITED, VN
41	131389	1355.0	0.01%	2	2710	SEABANK-AS-VN SeABank, VN
42	150854	1354.5	0.01%	2	2709	DIGINEXT-VN Diginext Group Joint Stock Company, VN
43	150861	1353.5	0.01%	2	2707	POWERNET-VN POWERNET COMPANY LIMITED, VN
44	151865	1352.0	0.01%	2	2704	ZENTECH-VN ZENTECH Technology Solutions Co., Ltd, VN
45	135955	1352.0	0.01%	1	1352	LAMDONGPORTAL-AS-VN Data integration and digital transformation center of Lam Dong province, VN
46	131405	1350.5	0.02%	4	5402	TANCANGSG-AS-VN Saigon Newport, VN
47	9976	1347.7	0.07%	11	14825	ICNDP-AS-KR Namincheon Brodcasting Co., Ltd., KR
48	140770	1343.7	0.04%	6	8062	DIGILIFE-AS-VN Digilife Vietnam Digital Services Company Limited, VN
49	131342	1343.2	0.03%	5	6716	TECHCOMBANK-AS-VN Vietnam Technological and Commercial Joint-stock Bank - Techcombank, VN
50	149160	1342.0	0.01%
Total		99987.6	1.58%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	103.177.87.0/24	13322	0.06%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	103.177.86.0/24	12667	0.06%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	207.167.116.0/22	11428	0.05%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
4	124.195.190.0/24	11037	0.05%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
5	103.84.53.0/24	10712	0.05%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
6	130.137.231.0/24	10611	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
7	55.74.56.0/24	9136	0.04%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.74.57.0/24	9127	0.04%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	55.27.56.0/24	9021	0.04%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
10	55.67.56.0/24	9020	0.04%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
11	55.27.217.0/24	9001	0.04%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	186.83.117.0/24	8598	0.04%	10620 -- Telmex Colombia S.A., CO
13	173.82.125.0/24	7961	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	130.137.108.0/24	7896	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	130.137.12.0/24	7820	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
16	199.47.232.0/22	7560	0.03%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
17	173.82.66.0/24	6976	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
18	130.137.230.0/24	6920	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
19	130.137.80.0/24	6901	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	130.137.219.0/24	6880	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
21	84.205.66.0/24	6799	0.03%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
22	130.137.79.0/24	6706	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
23	173.82.108.0/24	6701	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
24	130.137.118.0/24	6682	0.03%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
25	173.82.63.0/24	6638	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	130.137.47.0/24	6548	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	130.137.111.0/24	6532	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	130.137.227.0/24	6515	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
29	173.82.67.0/24	6511	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
30	173.82.129.0/24	6491	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
31	130.137.124.0/24	6463	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	103.104.136.0/24	6458	0.03%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
33	130.137.16.0/24	6413	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
34	130.137.99.0/24	6387	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	130.137.150.0/24	6369	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
36	130.137.89.0/24	6364	0.03%	14618 -- AMAZON-AES - Amazon.com, Inc., US
37	130.137.140.0/24	6359	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.105.0/24	6338	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
39	130.137.130.0/24	6307	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.141.0/24	6293	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.127.0/24	6271	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.26.0/24	6265	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	193.105.156.0/24	6223	0.03%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
44	130.137.85.0/24	6197	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.136.0/24	6194	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.133.0/24	6189	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.81.0/24	6177	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.78.0/24	6161	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.147.0/24	6157	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	130.137.86.0/24	6139	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
Total		374441	1.70%

14 Day BGP Profile: 8-March-2026 00:00 - 21-March-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	47516590
Number of Prefix Updates:	22598436
Number of Prefix Withdrawals:	387392
Average Prefixes per BGP Update:	0.48
Average BGP Update Messages per second:	39.28
Average Prefix Updates per second:	19.00
Peak BGP Update Message Rate per second:	121787	(23:06:08 Thu, 19-Mar-2026)
Peak Prefix Update Rate per second:	9568	(16:11:23 Wed, 11-Mar-2026)
Peak Prefix Withdraw Rate per second:	65147	(15:39:58 Mon, 9-Mar-2026)
Prefix Count:	1081025
Updated Prefix Count:	1070776
Stable Prefix Count:	10249
Origin AS Count:	78256
Updated Origin AS Count:	77988
Stable Origin AS Count:	268
Unique Path Count:	623987
Updated Path Count:	517632
Stable Path Count:	106355

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.