The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 16 December 2025 06:21 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	282579	2.89%	14422	19.59	AMAZON-02, US
2	5413	257690	2.63%	97	2656.60	WAVENET-AS5413, GB
3	8151	161050	1.64%	12809	12.57	UNINET, MX
4	36903	82470	0.84%	1250	65.98	MT-MPLS, MA
5	7821	70698	0.72%	17	4158.71	ZAYO-MN, US
6	4538	65093	0.66%	5040	12.92	ERX-CERNET-BKB China Education and Research Network Center, CN
7	10620	64299	0.66%	3459	18.59	Telmex Colombia S.A., CO
8	9198	59996	0.61%	1029	58.31	KAZTELECOM-AS, KZ
9	39891	52680	0.54%	4833	10.90	ALJAWWALSTC-AS, SA
10	335	52677	0.54%	224	235.17	DNIC-ASBLK-00306-00371, US
11	4181	50850	0.52%	1192	42.66	TDS-AS, US
12	13188	50359	0.51%	1607	31.34	TRIOLAN, UA
13	8796	48293	0.49%	486	99.37	FD-298-8796, US
14	15766	45345	0.46%	15	3023.00	DOMICILIUM-AS, IM
15	45899	44008	0.45%	3330	13.22	VNPT-AS-VN VNPT Corp, VN
16	6412	43058	0.44%	252	170.87	KW KEMS Block-A, Floor 7, Souq Al-Kabeer Kuwait City, State of Kuwait P O Box 3623, Safat 13037, KW
17	7459	38498	0.39%	1526	25.23	GRANDECOM-AS1, US
18	5371	37320	0.38%	302	123.58	DNIC-ASBLK-05120-05376, US
19	647	37274	0.38%	434	85.88	DNIC-ASBLK-00616-00665, US
20	9808	36956	0.38%	13621	2.71	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
21	17561	36643	0.37%	2871	12.76	LCS-AS-AP LARUS Limited, HK
22	40065	36565	0.37%	570	64.15	CNSERVERS, US
23	29571	35674	0.36%	1072	33.28	ORANGE-COTE-IVOIRE, CI
24	58224	35612	0.36%	1170	30.44	TCI, IR
25	7552	32238	0.33%	4016	8.03	VIETEL-AS-AP Viettel Group, VN
26	51375	32193	0.33%	388	82.97	VIVA, BH
27	9829	31884	0.33%	1862	17.12	BSNL-NIB National Internet Backbone, IN
28	31148	31537	0.32%	555	56.82	FREENET_LLC, UA
29	197207	31051	0.32%	988	31.43	MCCI-AS, IR
30	8452	30775	0.31%	1709	18.01	TE-AS TE-AS, EG
31	9009	29708	0.30%	4055	7.33	M247, RO
32	9304	29599	0.30%	1880	15.74	HUTCHISON-AS-AP HGC Global Communications Limited, HK
33	9919	28957	0.30%	970	29.85	NCIC-TW New Century InfoComm Tech Co., Ltd., TW
34	3303	28665	0.29%	255	112.41	SWISSCOM Swisscom Switzerland Ltd, CH
35	22884	28488	0.29%	1062	26.82	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
36	36914	27671	0.28%	582	47.54	KENET-AS, KE
37	7713	27408	0.28%	3733	7.34	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
38	398101	26192	0.27%	240	109.13	GO-DADDY-COM-LLC, US
39	37294	25787	0.26%	134	192.44	TNM, MW
40	36992	25323	0.26%	1688	15.00	ETISALAT-MISR, EG
41	37342	25274	0.26%	536	47.15	MOVITEL, MZ
42	17488	24720	0.25%	1274	19.40	HATHWAY-NET-AP Hathway IP Over Cable Internet, IN
43	20473	24115	0.25%	1437	16.78	AS-VULTR, US
44	21859	22757	0.23%	1604	14.19	ZEN-ECN, US
45	24835	21863	0.22%	1982	11.03	RAYA-AS, EG
46	5972	21385	0.22%	1425	15.01	DNIC-ASBLK-05800-06055, US
47	12479	21077	0.22%	7372	2.86	UNI2-AS, ES
48	55933	21010	0.21%	461	45.57	CLOUDIE-AS-AP Cloudie Limited, HK
49	979	20538	0.21%	359	57.21	NETLAB-SDN, US
50	22773	20092	0.21%	4787	4.20	ASN-CXA-ALL-CCI-22773-RDC, US
Total		2415994	24.64%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	7954	11232.0	0.11%	3	11232	IMMENSE-NETWORKS, US
2	13341	7134.0	0.07%	5	7134	TRANQUILITY, US
3	56644	4425.0	0.05%	2	4425	SYNFS-AS, GB
4	7821	4158.7	0.72%	17	70698	ZAYO-MN, US
5	33764	3954.0	0.04%	3	3954	AFRINIC-ZA-JNB-AS, MU
6	265046	3804.5	0.08%	3	7609	NET-MAIS INFORMATICA, BR
7	27892	3536.0	0.04%	1	3536	Universidad del Zulia, VE
8	29469	3445.0	0.04%	1	3445	GTU Khmelnitsky, Ukraine, UA
9	51897	3329.0	0.03%	1	3329	MIHAN, IR
10	396950	3228.0	0.03%	1	3228	COMSTBARTH-AS, FR
11	149038	3050.5	0.06%	2	6101	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
12	15766	3023.0	0.46%	15	45345	DOMICILIUM-AS, IM
13	214675	2863.0	0.03%	1	2863	STARLAMP Starlamp Network Project, JP
14	208907	2799.0	0.03%	1	2799	RISING-BRIDGE-TECHNOLOGY, GB
15	202174	2797.0	0.03%	1	2797	EMSP-AS, NO
16	2603	2713.0	0.03%	10	2713	NORDUNET, DK
17	57670	2692.5	0.16%	6	16155	ASOPENWAY, UA
18	5413	2656.6	2.63%	97	257690	WAVENET-AS5413, GB
19	214929	2656.5	0.05%	2	5313	LASTRESPONSE, AT
20	40138	2605.7	0.16%	6	15634	MDNET, US
21	198918	2462.7	0.08%	8	7388	MST-ZELDOL-AS MST Moskva Zeldol, RU
22	886	2062.0	0.02%	1	2062	SBH-IX-SERVICES, FR
23	265566	2013.7	0.06%	3	6041	TELESISTEMAS PENINSULARES SA DE CV, MX
24	21570	1877.0	0.02%	94	1877	ACI-1, CA
25	12335	1825.3	0.06%	3	5476	TARIO, RU
26	136867	1737.3	0.05%	3	5212	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
27	60742	1600.0	0.02%	1	1600	DAWOX, AT
28	61850	1589.1	0.11%	7	11124	A2 TELECOMUNICACOES LTDA, BR
29	52852	1495.8	0.08%	5	7479	Last Mile Telecom, BR
30	28657	1482.0	0.05%	3	4446	MD Brasil - Tecnologia da Informacao Ltda, BR
31	395327	1361.0	0.01%	1	1361	BAYFEDCU, US
32	147117	1231.0	0.03%	2	2462	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
33	8987	1195.0	0.13%	113	13145	AWS-GOVCLOUD AWS-GOVCLOUD, IE
34	205605	1177.0	0.01%	1	1177	ID-PROCESSING, AM
35	150935	1107.0	0.03%	3	3321	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
36	328811	1099.0	0.01%	1	1099	FCB-AS, MW
37	213812	1084.8	0.04%	4	4339	ALFATEH, SY
38	37249	1066.0	0.01%	5	1066	CWHOUSE, NG
39	401017	1055.0	0.01%	1	1055	AAICE-ASN, US
40	204318	1009.0	0.01%	1	1009	BGPTOOLS-QA, GB
41	150442	977.0	0.01%	2	977	BFSACD-AS-AP Bangladesh Fire Service and Civil Defense, BD
42	328300	967.0	0.01%	1	967	Malawi-Bank-AS, MW
43	329454	943.0	0.01%	1	943	Vitel-Wireless, NG
44	267377	938.5	0.02%	4	1877	acesso net telecomunicacoes ltda-me, BR
45	207633	929.0	0.02%	2	1858	NOSSPEED, TR
46	264534	920.0	0.01%	1	920	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
47	12654	882.3	0.14%	22	13235	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
48	202364	882.0	0.01%	4	882	GRIDH, GB
49	45763	866.7	0.03%	135	2600	OPTICOMMCOPTYLTD-AS-AP Opticomm Co Pty Ltd, AU
50	57285	855.0	0.01%
Total		114793.2	5.96%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11232	0.11%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	10929	0.11%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10477	0.10%	16509 -- AMAZON-02, US
4	55.27.217.0/24	10227	0.10%	335 -- DNIC-ASBLK-00306-00371, US
5	55.74.57.0/24	10209	0.10%	335 -- DNIC-ASBLK-00306-00371, US
6	55.67.56.0/24	10205	0.10%	335 -- DNIC-ASBLK-00306-00371, US
7	55.27.56.0/24	10198	0.10%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10184	0.10%	335 -- DNIC-ASBLK-00306-00371, US
9	186.83.117.0/24	8243	0.08%	10620 -- Telmex Colombia S.A., CO
10	173.82.125.0/24	8139	0.08%	16509 -- AMAZON-02, US
11	130.137.108.0/24	8111	0.08%	16509 -- AMAZON-02, US
12	130.137.12.0/24	7976	0.08%	16509 -- AMAZON-02, US
13	170.150.53.0/24	7605	0.08%	265046 -- NET-MAIS INFORMATICA, BR
14	130.137.230.0/24	7465	0.07%	16509 -- AMAZON-02, US
15	177.86.122.0/23	7421	0.07%	52852 -- Last Mile Telecom, BR
16	199.47.232.0/22	7134	0.07%	13341 -- TRANQUILITY, US
17	130.137.219.0/24	7124	0.07%	16509 -- AMAZON-02, US
18	173.82.66.0/24	7095	0.07%	16509 -- AMAZON-02, US
19	130.137.118.0/24	7061	0.07%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
20	130.137.80.0/24	7021	0.07%	16509 -- AMAZON-02, US
21	130.137.79.0/24	6860	0.07%	16509 -- AMAZON-02, US
22	84.205.66.0/24	6855	0.07%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
23	37.252.60.0/22	6769	0.07%	5413 -- WAVENET-AS5413, GB
24	45.83.76.0/22	6725	0.07%	5413 -- WAVENET-AS5413, GB
25	45.83.76.0/24	6725	0.07%	5413 -- WAVENET-AS5413, GB
26	5.252.36.0/22	6706	0.07%	5413 -- WAVENET-AS5413, GB
27	5.22.224.0/21	6704	0.07%	5413 -- WAVENET-AS5413, GB
28	45.132.148.0/23	6698	0.07%	5413 -- WAVENET-AS5413, GB
29	46.31.71.0/24	6666	0.07%	5413 -- WAVENET-AS5413, GB
30	173.82.67.0/24	6649	0.07%	16509 -- AMAZON-02, US
31	130.137.150.0/24	6607	0.07%	16509 -- AMAZON-02, US
32	195.114.122.0/24	6579	0.07%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
33	193.105.156.0/24	6561	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
34	173.82.63.0/24	6524	0.06%	16509 -- AMAZON-02, US
35	130.137.124.0/24	6523	0.06%	16509 -- AMAZON-02, US
36	130.137.28.0/24	6520	0.06%	16509 -- AMAZON-02, US
37	173.82.108.0/24	6520	0.06%	16509 -- AMAZON-02, US
38	62.44.64.0/19	6504	0.06%	5413 -- WAVENET-AS5413, GB
39	130.137.111.0/24	6503	0.06%	16509 -- AMAZON-02, US
40	195.114.123.0/24	6499	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
41	62.69.32.0/19	6498	0.06%	5413 -- WAVENET-AS5413, GB
42	62.72.128.0/19	6496	0.06%	5413 -- WAVENET-AS5413, GB
43	130.137.16.0/24	6492	0.06%	16509 -- AMAZON-02, US
44	62.105.64.0/18	6474	0.06%	5413 -- WAVENET-AS5413, GB
45	62.232.0.0/16	6439	0.06%	5413 -- WAVENET-AS5413, GB
46	130.137.127.0/24	6423	0.06%	16509 -- AMAZON-02, US
47	173.82.129.0/24	6415	0.06%	16509 -- AMAZON-02, US
48	130.137.227.0/24	6399	0.06%	16509 -- AMAZON-02, US
49	130.137.147.0/24	6377	0.06%	16509 -- AMAZON-02, US
50	130.137.47.0/24	6356	0.06%	16509 -- AMAZON-02, US
Total		371122	3.63%

14 Day BGP Profile: 2-December-2025 00:00 - 15-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	23254527
Number of Prefix Updates:	9793290
Number of Prefix Withdrawals:	316120
Average Prefixes per BGP Update:	0.43
Average BGP Update Messages per second:	19.22
Average Prefix Updates per second:	8.36
Peak BGP Update Message Rate per second:	33233	(06:12:14 Thu, 4-Dec-2025)
Peak Prefix Update Rate per second:	1291	(00:42:35 Sat, 13-Dec-2025)
Peak Prefix Withdraw Rate per second:	25837	(11:31:16 Wed, 10-Dec-2025)
Prefix Count:	1067414
Updated Prefix Count:	583920
Stable Prefix Count:	483494
Origin AS Count:	77690
Updated Origin AS Count:	52799
Stable Origin AS Count:	24891
Unique Path Count:	575032
Updated Path Count:	404998
Stable Path Count:	170034

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.