The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 19 March 2026 06:48 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	45899	6764542	21.79%	3346	2021.68	VNPT-AS-VN VNPT Corp, VN
2	9198	2643289	8.52%	1082	2442.97	KAZTELECOM-AS, KZ
3	4538	2046231	6.59%	5157	396.79	ERX-CERNET-BKB China Education and Research Network Center, CN
4	135905	823994	2.65%	332	2481.91	VNPT-AS-VN VIETNAM POSTS AND TELECOMMUNICATIONS GROUP, VN
5	4670	498127	1.60%	357	1395.31	HYUNDAI-KR Shinbiro, KR
6	16509	411320	1.33%	14679	28.02	AMAZON-02 - Amazon.com, Inc., US
7	51375	367301	1.18%	387	949.10	VIVA, BH
8	328608	340098	1.10%	570	596.66	Africa-on-Cloud-AS, ZA
9	23764	325884	1.05%	176	1851.61	CTGNET CTGNet, HK
10	8151	294535	0.95%	12874	22.88	UNINET, MX
11	9952	277579	0.89%	174	1595.28	HOSTWAY-AS-KR Hostway IDC, KR
12	9848	203542	0.66%	147	1384.64	SEJONGTELECOM-AS-KR SEJONG NETWORKS, KR
13	7552	150015	0.48%	4094	36.64	VIETEL-AS-AP Viettel Group, VN
14	10620	122363	0.39%	3454	35.43	Telmex Colombia S.A., CO
15	7643	104216	0.34%	80	1302.70	VNPT-AS-VN Vietnam Posts and Telecommunications VNPT, VN
16	36903	103021	0.33%	1232	83.62	MT-MPLS, MA
17	58224	93108	0.30%	1299	71.68	TCI, IR
18	24085	85607	0.28%	106	807.61	QTSC-AS-VN Quang Trung Software City Development Company, VN
19	131866	81264	0.26%	62	1310.71	DEK-AS-KR Digital Edge Korea, KR
20	18046	77217	0.25%	132	584.98	DONGFONG-TW DongFong Technology Co. Ltd., TW
21	7821	73759	0.24%	17	4338.76	ZAYO-MN - Inteliquent, inc., US
22	7713	70256	0.23%	3699	18.99	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
23	9980	59691	0.19%	62	962.76	LDCC-AS-KR LOTTE INNOVATE Co.,Ltd, KR
24	39891	58433	0.19%	4969	11.76	ALJAWWALSTC-AS, SA
25	9808	58240	0.19%	13844	4.21	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
26	63737	57464	0.19%	44	1306.00	VIETSERVER-AS-VN VIETSERVER SERVICES TECHNOLOGY COMPANY LIMITED, VN
27	20473	56656	0.18%	1702	33.29	AS-VULTR - The Constant Company, LLC, US
28	212238	55154	0.18%	2682	20.56	CDNEXT, GB
29	335	53080	0.17%	226	234.87	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
30	12389	49161	0.16%	3205	15.34	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
31	12479	48731	0.16%	7303	6.67	UNI2-AS, ES
32	10049	47139	0.15%	28	1683.54	SKNET-AS SK Co., KR
33	9829	46828	0.15%	1898	24.67	BSNL-NIB National Internet Backbone, IN
34	29256	46327	0.15%	351	131.99	INT-PDN-STE-AS STE PDN Internal AS, SY
35	17561	45550	0.15%	3214	14.17	LCS-AS-AP LARUS Limited, HK
36	36968	44220	0.14%	65	680.31	ECN-AS1, ZA
37	367	44150	0.14%	1791	24.65	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
38	9942	43930	0.14%	40	1098.25	COMINDICO-AP SOUL Converged Communications Australia, AU
39	36902	42347	0.14%	41	1032.85	ASINTELVISION, SC
40	647	42159	0.14%	512	82.34	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
41	54994	41114	0.13%	1001	41.07	ML-1432-54994 - Meteverse Limited., CA
42	9924	41049	0.13%	549	74.77	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
43	63747	39951	0.13%	16	2496.94	CPT-AS-VN Central Post and Telecommunication CPT, VN
44	55933	39504	0.13%	633	62.41	CLOUDIE-AS-AP Cloudie Limited, HK
45	55410	38637	0.12%	1221	31.64	VIL-AS-AP Vodafone Idea Ltd, IN
46	136167	38015	0.12%	13	2924.23	CHINATELECOM-AS-AP CHINA TELECOM MACAU COMPANY LIMITED, MO
47	132203	37563	0.12%	1063	35.34	TENCENT-NET-AP-CN Tencent Building, Kejizhongyi Avenue, CN
48	45374	37454	0.12%	41	913.51	CCS-AS-KR CCS, KR
49	45498	36739	0.12%	26	1413.04	SMART-AXIATA-KH SMART AXIATA Co., Ltd., KH
50	24173	36667	0.12%	259	141.57	NETNAM-AS-AP Netnam Company, VN
Total		17243221	55.56%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	12880.5	0.08%	2	25761	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	7821	4338.8	0.24%	17	73759	ZAYO-MN - Inteliquent, inc., US
3	29469	3927.5	0.03%	2	7855	GTU Khmelnitsky, Ukraine, UA
4	136225	3731.0	0.04%	3	11193	SMARTTELECOM-AS-AP Smart Telecom, PK
5	7954	3672.0	0.04%	3	11016	IMMENSE-NETWORKS - Immense Networks, LLC, US
6	213812	3336.5	0.02%	2	6673	ALFATEH, SY
7	149074	3130.3	0.03%	3	9391	UMP-AS-VN University of Medicine and Pharmacy at Ho Chi Minh City, VN
8	138886	3102.5	0.02%	28	6205	DBN-AS-ID PT Data Buana Nusantara, ID
9	150203	3026.0	0.01%	1	3026	IDNIC-CHINATELECOMGLOBAL-AS-ID PT. CHINA TELECOM INDONESIA, ID
10	131941	2967.8	0.04%	4	11871	ENTSU-NET Entsu Co.,Ltd., JP
11	149068	2948.0	0.01%	1	2948	INETSOFT-AS-VN iNET software one member company limited, VN
12	136167	2924.2	0.12%	13	38015	CHINATELECOM-AS-AP CHINA TELECOM MACAU COMPANY LIMITED, MO
13	63527	2914.5	0.06%	6	17487	CTGL-AS China Telecom Global Limited, HK
14	57670	2897.3	0.06%	6	17384	ASOPENWAY, UA
15	151867	2865.5	0.02%	2	5731	DONGNAI-VN Department of Science and Technology of Dong Nai province, VN
16	51897	2824.0	0.01%	1	2824	MIHAN, IR
17	36029	2793.0	0.01%	1	2793	AS-SEARCHGUIDE - Akamai Technologies, Inc., US
18	151913	2785.5	0.02%	2	5571	HAGIANG-VN Ha Giang province Department of Information and Communications, VN
19	135982	2633.5	0.02%	2	5267	HASD-AS-VN Hoi An South Development Ltd, VN
20	135939	2629.0	0.03%	4	10516	VNPTEPAY-AS-VN VNPT Electronic Payment Joint Stock Company, VN
21	135989	2625.0	0.01%	1	2625	TAYNINH-AS-VN Tay Ninh Department of Information and Communications, VN
22	135972	2624.0	0.01%	1	2624	ICTQUANGNAM-AS-VN Quang Nam Department of Information and Communications, VN
23	131363	2624.0	0.03%	3	7872	GDT-AS-VN Department of Information Technology - General Department of Taxation, VN
24	135956	2619.3	0.03%	3	7858	MOH-AS-VN The Authority of Information Technology - Ministry of Health, VN
25	140768	2618.0	0.01%	1	2618	GIALAI-VN Department of Science and Technology Gia Lai, VN
26	152992	2614.5	0.02%	2	5229	DATAONLINE-VN ONLINE DATA COMPANY LIMITED, VN
27	63752	2599.0	0.01%	1	2599	PTO-KHCN-VN Department of Science and Technology of Phu Tho province, VN
28	140758	2598.0	0.01%	1	2598	CAMAU-AS-VN Department of Science and Technology of Ca Mau province, VN
29	149120	2593.0	0.02%	2	5186	BLUETECH-VN BLUE TECHNOLOGY AND INVESTMENT COMPANY LIMITED, VN
30	131389	2590.0	0.02%	2	5180	SEABANK-AS-VN SeABank, VN
31	152933	2585.8	0.03%	4	10343	ZONECLOUD-VN ZONECLOUD TECHNOLOGY JOINT STOCK COMPANY, VN
32	131131	2585.0	0.01%	1	2585	VNNIC-AS-VN VNNIC-AS-, VN
33	150854	2582.0	0.02%	2	5164	DIGINEXT-VN Diginext Group Joint Stock Company, VN
34	131122	2581.0	0.01%	1	2581	VNNIC-4-BYTE-AS-VN Vietnam Internet network information center VNNIC, VN
35	149160	2580.0	0.01%	1	2580	CANTHO-VN Department of Science and Technology of Can Tho City, VN
36	151865	2578.0	0.02%	2	5156	ZENTECH-VN ZENTECH Technology Solutions Co., Ltd, VN
37	40138	2573.4	0.04%	5	12867	MDNET - Mach Dilemma, LLC, US
38	150861	2572.5	0.02%	2	5145	POWERNET-VN POWERNET COMPANY LIMITED, VN
39	131405	2567.8	0.03%	4	10271	TANCANGSG-AS-VN Saigon Newport, VN
40	9976	2558.8	0.09%	11	28147	ICNDP-AS-KR Namincheon Brodcasting Co., Ltd., KR
41	135955	2558.0	0.01%	1	2558	LAMDONGPORTAL-AS-VN Data integration and digital transformation center of Lam Dong province, VN
42	131342	2545.6	0.04%	5	12728	TECHCOMBANK-AS-VN Vietnam Technological and Commercial Joint-stock Bank - Techcombank, VN
43	149127	2545.0	0.01%	1	2545	BACGIANG-VN Bac Giang Department of Information and Communications, VN
44	24089	2543.0	0.01%	1	2543	VNNIC-AS-AP Vietnam Internet Network Information Center, VN
45	150864	2530.0	0.01%	1	2530	VNNS-VN VIET NAM VNNS TECHNOLOGIES JOINT STOCK COMPANY, VN
46	23902	2529.0	0.02%	2	5058	VNNIC-AS-VN Vietnam Internet network information center VNNIC, VN
47	55317	2527.3	0.02%	3	7582	ABBANK-AS-VN 170 Hai Ba Trung, DaKao Ward, District 1, Hochiminh City, VN
48	150838	2519.0	0.01%	1	2519	HASONTECH-VN HA SON TECHNOLOGY ONE MEMBER LIMITED COMPANY, VN
49	131415	2497.0	0.01%	1	2497	VNNIC-AS-VN Vietnam Internet network information center VNNIC, VN
50	63747	2496.9	0.13%
Total		149487.3	1.63%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	103.177.87.0/24	13214	0.04%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	103.177.86.0/24	12547	0.04%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
3	103.84.53.0/24	11180	0.04%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
4	207.167.116.0/22	11004	0.04%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
5	124.195.190.0/24	10835	0.03%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
6	130.137.231.0/24	10669	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
7	55.74.56.0/24	9102	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.74.57.0/24	9087	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	55.67.56.0/24	9003	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
10	55.27.56.0/24	9003	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
11	55.27.217.0/24	8991	0.03%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
12	186.83.117.0/24	8506	0.03%	10620 -- Telmex Colombia S.A., CO
13	130.137.108.0/24	8079	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	173.82.125.0/24	8024	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	130.137.12.0/24	8008	0.03%	16509 -- AMAZON-02 - Amazon.com, Inc., US
16	199.47.232.0/22	7646	0.02%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
17	130.137.230.0/24	7241	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
18	173.82.66.0/24	7201	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
19	130.137.80.0/24	7104	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
20	130.137.219.0/24	7052	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
21	84.205.66.0/24	6941	0.02%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
22	130.137.79.0/24	6882	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
23	130.137.111.0/24	6829	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
24	130.137.118.0/24	6810	0.02%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
25	173.82.108.0/24	6761	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
26	130.137.124.0/24	6732	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	130.137.227.0/24	6725	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	130.137.47.0/24	6722	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
29	173.82.63.0/24	6631	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
30	130.137.16.0/24	6617	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
31	173.82.67.0/24	6609	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	103.104.136.0/24	6597	0.02%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
33	173.82.129.0/24	6585	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
34	130.137.150.0/24	6523	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	130.137.99.0/24	6506	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
36	130.137.89.0/24	6464	0.02%	14618 -- AMAZON-AES - Amazon.com, Inc., US
37	130.137.141.0/24	6442	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.140.0/24	6428	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
39	130.137.105.0/24	6427	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.130.0/24	6399	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.85.0/24	6376	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.147.0/24	6356	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.127.0/24	6337	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	193.105.156.0/24	6334	0.02%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
45	130.137.136.0/24	6330	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.133.0/24	6329	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.26.0/24	6311	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.86.0/24	6309	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.81.0/24	6307	0.02%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	195.114.122.0/24	6216	0.02%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
Total		379331	1.19%

14 Day BGP Profile: 5-March-2026 00:00 - 18-March-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	63113870
Number of Prefix Updates:	31040006
Number of Prefix Withdrawals:	384104
Average Prefixes per BGP Update:	0.50
Average BGP Update Messages per second:	52.18
Average Prefix Updates per second:	25.98
Peak BGP Update Message Rate per second:	95407	(06:07:06 Tue, 17-Mar-2026)
Peak Prefix Update Rate per second:	9978	(16:11:23 Wed, 11-Mar-2026)
Peak Prefix Withdraw Rate per second:	61777	(15:39:58 Mon, 9-Mar-2026)
Prefix Count:	1081732
Updated Prefix Count:	1031398
Stable Prefix Count:	50334
Origin AS Count:	78212
Updated Origin AS Count:	76063
Stable Origin AS Count:	2149
Unique Path Count:	618921
Updated Path Count:	506248
Stable Path Count:	112673

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.