The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 20 March 2026 06:46 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	45899	5692670	20.01%	3347	1700.83	VNPT-AS-VN VNPT Corp, VN
2	9198	2224852	7.82%	1082	2056.24	,
3	4538	1726709	6.07%	5157	334.83	ERX-CERNET-BKB China Education and Research Network Center, CN
4	135905	693753	2.44%	332	2089.62	VNPT-AS-VN VIETNAM POSTS AND TELECOMMUNICATIONS GROUP, VN
5	4670	418865	1.47%	357	1173.29	HYUNDAI-KR Shinbiro, KR
6	16509	412163	1.45%	14669	28.10	AMAZON-02 - Amazon.com, Inc., US
7	328608	361368	1.27%	570	633.98	Africa-on-Cloud-AS, ZA
8	51375	304807	1.07%	387	787.61	,
9	8151	280638	0.99%	12874	21.80	UNINET, MX
10	23764	278134	0.98%	182	1528.21	CTGNET CTGNet, HK
11	9952	230729	0.81%	174	1326.03	HOSTWAY-AS-KR Hostway IDC, KR
12	9848	164165	0.58%	147	1116.77	SEJONGTELECOM-AS-KR SEJONG NETWORKS, KR
13	7552	137280	0.48%	4085	33.61	VIETEL-AS-AP Viettel Group, VN
14	10620	120337	0.42%	3454	34.84	Telmex Colombia S.A., CO
15	36903	95778	0.34%	1232	77.74	MT-MPLS, MA
16	7643	87581	0.31%	80	1094.76	VNPT-AS-VN Vietnam Posts and Telecommunications VNPT, VN
17	58224	86351	0.30%	1299	66.47	,
18	7821	73855	0.26%	17	4344.41	ZAYO-MN - Inteliquent, inc., US
19	9808	71894	0.25%	13858	5.19	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
20	24085	71543	0.25%	106	674.93	QTSC-AS-VN Quang Trung Software City Development Company, VN
21	7713	70711	0.25%	3694	19.14	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
22	18046	65326	0.23%	132	494.89	DONGFONG-TW DongFong Technology Co. Ltd., TW
23	131866	63034	0.22%	62	1016.68	DEK-AS-KR Digital Edge Korea, KR
24	20473	59458	0.21%	1701	34.95	AS-VULTR - The Constant Company, LLC, US
25	39891	56289	0.20%	4969	11.33	,
26	12479	54872	0.19%	7301	7.52	,
27	335	53092	0.19%	226	234.92	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
28	36992	51050	0.18%	1848	27.62	ETISALAT-MISR, EG
29	212238	50354	0.18%	2682	18.77	,
30	9980	50095	0.18%	62	807.98	LDCC-AS-KR LOTTE INNOVATE Co.,Ltd, KR
31	36902	49930	0.18%	41	1217.80	ASINTELVISION, SC
32	9829	49386	0.17%	1898	26.02	BSNL-NIB National Internet Backbone, IN
33	63737	48441	0.17%	44	1100.93	VIETSERVER-AS-VN VIETSERVER SERVICES TECHNOLOGY COMPANY LIMITED, VN
34	12389	46788	0.16%	3205	14.60	PJSC Rostelecom. Technical Team, RU
35	55933	46207	0.16%	634	72.88	CLOUDIE-AS-AP Cloudie Limited, HK
36	367	45642	0.16%	1797	25.40	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
37	17561	45546	0.16%	3218	14.15	LCS-AS-AP LARUS Limited, HK
38	29256	44252	0.16%	351	126.07	STE PDN Internal AS, SY
39	647	43153	0.15%	511	84.45	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
40	197207	41127	0.14%	762	53.97	,
41	11492	40998	0.14%	4647	8.82	CABLEONE - CABLE ONE, INC., US
42	55410	40874	0.14%	1215	33.64	VIL-AS-AP Vodafone Idea Ltd, IN
43	10049	39577	0.14%	28	1413.46	SKNET-AS SK Co., KR
44	18403	38619	0.14%	4710	8.20	FPT-AS-AP FPT Telecom Company, VN
45	22773	37767	0.13%	4789	7.89	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
46	36968	37402	0.13%	65	575.42	ECN-AS1, ZA
47	9009	36775	0.13%	3843	9.57	,
48	54994	36245	0.13%	1003	36.14	ML-1432-54994 - Meteverse Limited., CA
49	140292	35154	0.12%	2472	14.22	CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CHINATELECOM Jiangsu province Suzhou 5G network, CN
50	45090	34149	0.12%	2190	15.59	TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN
Total		14945785	52.53%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	12911.5	0.09%	2	25823	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	7821	4344.4	0.26%	17	73855	ZAYO-MN - Inteliquent, inc., US
3	29469	3995.5	0.03%	2	7991	Khmelnitsky, Ukraine, UA
4	7954	3700.3	0.04%	3	11101	IMMENSE-NETWORKS - Immense Networks, LLC, US
5	136225	3657.0	0.04%	3	10971	SMARTTELECOM-AS-AP Smart Telecom, PK
6	213812	3213.0	0.02%	2	6426	,
7	51897	2927.0	0.01%	1	2927	,
8	57670	2905.8	0.06%	6	17435	,
9	149074	2626.0	0.03%	3	7878	UMP-AS-VN University of Medicine and Pharmacy at Ho Chi Minh City, VN
10	150203	2585.0	0.01%	1	2585	IDNIC-CHINATELECOMGLOBAL-AS-ID PT. CHINA TELECOM INDONESIA, ID
11	40138	2564.8	0.05%	5	12824	MDNET - Mach Dilemma, LLC, US
12	149068	2523.0	0.01%	1	2523	INETSOFT-AS-VN iNET software one member company limited, VN
13	131941	2512.5	0.04%	4	10050	ENTSU-NET Entsu Co.,Ltd., JP
14	136167	2459.8	0.11%	13	31978	CHINATELECOM-AS-AP CHINA TELECOM MACAU COMPANY LIMITED, MO
15	151867	2458.5	0.02%	2	4917	DONGNAI-VN Department of Science and Technology of Dong Nai province, VN
16	63527	2448.2	0.05%	6	14689	CTGL-AS China Telecom Global Limited, HK
17	151913	2340.0	0.02%	2	4680	HAGIANG-VN Ha Giang province Department of Information and Communications, VN
18	36029	2262.0	0.01%	1	2262	AS-SEARCHGUIDE - Akamai Technologies, Inc., US
19	136867	2213.0	0.02%	3	6639	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
20	135982	2212.5	0.02%	2	4425	HASD-AS-VN Hoi An South Development Ltd, VN
21	135989	2208.0	0.01%	1	2208	TAYNINH-AS-VN Tay Ninh Department of Information and Communications, VN
22	135939	2207.2	0.03%	4	8829	VNPTEPAY-AS-VN VNPT Electronic Payment Joint Stock Company, VN
23	135972	2204.0	0.01%	1	2204	ICTQUANGNAM-AS-VN Quang Nam Department of Information and Communications, VN
24	135956	2203.3	0.02%	3	6610	MOH-AS-VN The Authority of Information Technology - Ministry of Health, VN
25	131363	2202.0	0.02%	3	6606	GDT-AS-VN Department of Information Technology - General Department of Taxation, VN
26	140768	2197.0	0.01%	1	2197	GIALAI-VN Department of Science and Technology Gia Lai, VN
27	152992	2191.5	0.02%	2	4383	DATAONLINE-VN ONLINE DATA COMPANY LIMITED, VN
28	140758	2187.0	0.01%	1	2187	CAMAU-AS-VN Department of Science and Technology of Ca Mau province, VN
29	63752	2178.0	0.01%	1	2178	PTO-KHCN-VN Department of Science and Technology of Phu Tho province, VN
30	149120	2177.0	0.02%	2	4354	BLUETECH-VN BLUE TECHNOLOGY AND INVESTMENT COMPANY LIMITED, VN
31	152933	2171.2	0.03%	4	8685	ZONECLOUD-VN ZONECLOUD TECHNOLOGY JOINT STOCK COMPANY, VN
32	149160	2171.0	0.01%	1	2171	CANTHO-VN Department of Science and Technology of Can Tho City, VN
33	131131	2171.0	0.01%	1	2171	VNNIC-AS-VN VNNIC-AS-, VN
34	150854	2170.0	0.02%	2	4340	DIGINEXT-VN Diginext Group Joint Stock Company, VN
35	131122	2168.0	0.01%	1	2168	VNNIC-4-BYTE-AS-VN Vietnam Internet network information center VNNIC, VN
36	131389	2168.0	0.02%	2	4336	SEABANK-AS-VN SeABank, VN
37	151865	2167.0	0.02%	2	4334	ZENTECH-VN ZENTECH Technology Solutions Co., Ltd, VN
38	150861	2157.5	0.02%	2	4315	POWERNET-VN POWERNET COMPANY LIMITED, VN
39	131405	2155.2	0.03%	4	8621	TANCANGSG-AS-VN Saigon Newport, VN
40	9976	2152.3	0.08%	11	23675	ICNDP-AS-KR Namincheon Brodcasting Co., Ltd., KR
41	131342	2143.4	0.04%	5	10717	TECHCOMBANK-AS-VN Vietnam Technological and Commercial Joint-stock Bank - Techcombank, VN
42	135955	2141.0	0.01%	1	2141	LAMDONGPORTAL-AS-VN Data integration and digital transformation center of Lam Dong province, VN
43	149127	2132.0	0.01%	1	2132	BACGIANG-VN Bac Giang Department of Information and Communications, VN
44	150838	2125.0	0.01%	1	2125	HASONTECH-VN HA SON TECHNOLOGY ONE MEMBER LIMITED COMPANY, VN
45	24089	2125.0	0.01%	1	2125	VNNIC-AS-AP Vietnam Internet Network Information Center, VN
46	150864	2119.0	0.01%	1	2119	VNNS-VN VIET NAM VNNS TECHNOLOGIES JOINT STOCK COMPANY, VN
47	55317	2117.7	0.02%	3	6353	ABBANK-AS-VN 170 Hai Ba Trung, DaKao Ward, District 1, Hochiminh City, VN
48	23902	2117.5	0.01%	2	4235	VNNIC-AS-VN Vietnam Internet network information center VNNIC, VN
49	63747	2094.4	0.12%	16	33510	CPT-AS-VN Central Post and Telecommunication CPT, VN
50	131415	2093.0	0.01%
Total		131674	1.60%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	103.177.87.0/24	13251	0.05%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	103.177.86.0/24	12572	0.04%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	207.167.116.0/22	11087	0.04%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
4	103.84.53.0/24	10957	0.04%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
5	124.195.190.0/24	10860	0.04%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
6	130.137.231.0/24	10618	0.04%	16509 -- AMAZON-02 - Amazon.com, Inc., US
7	55.74.56.0/24	9098	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.74.57.0/24	9069	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	55.27.56.0/24	8927	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
10	55.67.56.0/24	8917	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
11	55.27.217.0/24	8910	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	186.83.117.0/24	8540	0.03%	10620 -- Telmex Colombia S.A., CO
13	130.137.108.0/24	8028	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	173.82.125.0/24	8001	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	130.137.12.0/24	7951	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
16	199.47.232.0/22	7638	0.03%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
17	130.137.230.0/24	7141	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
18	173.82.66.0/24	7137	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
19	130.137.80.0/24	7055	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	130.137.219.0/24	7005	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
21	130.137.79.0/24	6863	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
22	84.205.66.0/24	6852	0.02%	12654 -- Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
23	130.137.118.0/24	6756	0.02%	8987 -- AWS-GOVCLOUD, IE
24	130.137.111.0/24	6753	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
25	173.82.108.0/24	6717	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	130.137.47.0/24	6671	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	173.82.63.0/24	6636	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	130.137.227.0/24	6628	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
29	130.137.124.0/24	6626	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
30	103.104.136.0/24	6621	0.02%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
31	130.137.16.0/24	6540	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	173.82.67.0/24	6538	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
33	173.82.129.0/24	6527	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
34	130.137.99.0/24	6476	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	130.137.89.0/24	6462	0.02%	14618 -- AMAZON-AES - Amazon.com, Inc., US
36	130.137.150.0/24	6457	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
37	130.137.140.0/24	6429	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.105.0/24	6405	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
39	130.137.130.0/24	6392	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.141.0/24	6384	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.85.0/24	6309	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.127.0/24	6301	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.133.0/24	6295	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	130.137.136.0/24	6287	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.26.0/24	6279	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	193.105.156.0/24	6274	0.02%	8369 -- 38-B, Komsomolsky prospekt, RU
47	130.137.147.0/24	6272	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.81.0/24	6244	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.86.0/24	6203	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	195.114.122.0/24	6189	0.02%	8369 -- 38-B, Komsomolsky prospekt, RU
Total		377148	1.23%

14 Day BGP Profile: 6-March-2026 00:00 - 19-March-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	58675283
Number of Prefix Updates:	28448588
Number of Prefix Withdrawals:	384475
Average Prefixes per BGP Update:	0.49
Average BGP Update Messages per second:	48.51
Average Prefix Updates per second:	23.84
Peak BGP Update Message Rate per second:	121787	(23:06:08 Thu, 19-Mar-2026)
Peak Prefix Update Rate per second:	9679	(16:11:23 Wed, 11-Mar-2026)
Peak Prefix Withdraw Rate per second:	58335	(15:39:58 Mon, 9-Mar-2026)
Prefix Count:	1082361
Updated Prefix Count:	1072561
Stable Prefix Count:	9800
Origin AS Count:	78232
Updated Origin AS Count:	77986
Stable Origin AS Count:	246
Unique Path Count:	623049
Updated Path Count:	515937
Stable Path Count:	107112

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.