The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 11 December 2025 06:23 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	293480	2.78%	14364	20.43	AMAZON-02, US
2	5413	252269	2.39%	97	2600.71	WAVENET-AS5413, GB
3	4538	163847	1.55%	5031	32.57	ERX-CERNET-BKB China Education and Research Network Center, CN
4	8151	160560	1.52%	12793	12.55	UNINET, MX
5	51375	77496	0.73%	388	199.73	VIVA, BH
6	39891	74949	0.71%	4833	15.51	ALJAWWALSTC-AS, SA
7	7821	71761	0.68%	17	4221.24	ZAYO-MN, US
8	10620	70851	0.67%	3459	20.48	Telmex Colombia S.A., CO
9	36903	67228	0.64%	1250	53.78	MT-MPLS, MA
10	9198	64819	0.61%	1030	62.93	KAZTELECOM-AS, KZ
11	42337	61520	0.58%	689	89.29	RESPINA-AS, IR
12	4181	54618	0.52%	1197	45.63	TDS-AS, US
13	335	52387	0.50%	224	233.87	DNIC-ASBLK-00306-00371, US
14	13188	50611	0.48%	1607	31.49	TRIOLAN, UA
15	8796	48988	0.46%	484	101.21	FD-298-8796, US
16	7552	45019	0.43%	4016	11.21	VIETEL-AS-AP Viettel Group, VN
17	9829	44555	0.42%	1862	23.93	BSNL-NIB National Internet Backbone, IN
18	15766	42583	0.40%	15	2838.87	DOMICILIUM-AS, IM
19	45899	40841	0.39%	3330	12.26	VNPT-AS-VN VNPT Corp, VN
20	135031	40463	0.38%	59	685.81	RNPL-AS-AP RI Networks Pvt. Ltd., IN
21	40065	39316	0.37%	569	69.10	CNSERVERS, US
22	58224	37799	0.36%	1171	32.28	TCI, IR
23	6412	37169	0.35%	251	148.08	KW KEMS Block-A, Floor 7, Souq Al-Kabeer Kuwait City, State of Kuwait P O Box 3623, Safat 13037, KW
24	9808	36761	0.35%	13639	2.70	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
25	17561	36564	0.35%	3044	12.01	LCS-AS-AP LARUS Limited, HK
26	212477	36459	0.35%	142	256.75	ROYALE-AS, NL
27	647	35362	0.34%	429	82.43	DNIC-ASBLK-00616-00665, US
28	36914	33650	0.32%	583	57.72	KENET-AS, KE
29	9009	32659	0.31%	4072	8.02	M247, RO
30	7713	30952	0.29%	3728	8.30	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
31	21859	30508	0.29%	1599	19.08	ZEN-ECN, US
32	197207	30410	0.29%	968	31.42	MCCI-AS, IR
33	9304	29593	0.28%	1843	16.06	HUTCHISON-AS-AP HGC Global Communications Limited, HK
34	22773	28940	0.27%	4787	6.05	ASN-CXA-ALL-CCI-22773-RDC, US
35	12479	28282	0.27%	7373	3.84	UNI2-AS, ES
36	31148	27763	0.26%	555	50.02	FREENET_LLC, UA
37	37294	27306	0.26%	134	203.78	TNM, MW
38	398101	27012	0.26%	240	112.55	GO-DADDY-COM-LLC, US
39	17488	26764	0.25%	1274	21.01	HATHWAY-NET-AP Hathway IP Over Cable Internet, IN
40	20473	26477	0.25%	1455	18.20	AS-VULTR, US
41	29571	26196	0.25%	1072	24.44	ORANGE-COTE-IVOIRE, CI
42	3303	26195	0.25%	256	102.32	SWISSCOM Swisscom Switzerland Ltd, CH
43	36352	25510	0.24%	2903	8.79	AS-COLOCROSSING, US
44	29091	25325	0.24%	90	281.39	IPNXng, NG
45	9583	24255	0.23%	2051	11.83	SIFY-AS-IN Sify Limited, IN
46	22884	23769	0.23%	1064	22.34	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
47	8452	22875	0.22%	1709	13.39	TE-AS TE-AS, EG
48	25184	22805	0.22%	226	100.91	AFRANET to AS62265 announce AS25184, IR
49	24835	22405	0.21%	1987	11.28	RAYA-AS, EG
50	37233	22147	0.21%	45	492.16	ORANGE-NIGER, NE
Total		2660073	25.21%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	13341	7005.0	0.07%	5	7005	TRANQUILITY, US
2	396950	5388.0	0.05%	1	5388	COMSTBARTH-AS, FR
3	208907	4619.0	0.04%	1	4619	RISING-BRIDGE-TECHNOLOGY, GB
4	33764	4292.0	0.04%	3	4292	AFRINIC-ZA-JNB-AS, MU
5	7821	4221.2	0.68%	17	71761	ZAYO-MN, US
6	56644	4115.0	0.04%	2	4115	SYNFS-AS, GB
7	7954	3732.7	0.11%	3	11198	IMMENSE-NETWORKS, US
8	29469	3456.0	0.03%	1	3456	GTU Khmelnitsky, Ukraine, UA
9	886	3333.0	0.03%	1	3333	SBH-IX-SERVICES, FR
10	149038	3262.0	0.06%	2	6524	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
11	214675	2880.0	0.03%	1	2880	STARLAMP Starlamp Network Project, JP
12	51897	2847.0	0.03%	1	2847	MIHAN, IR
13	15766	2838.9	0.40%	15	42583	DOMICILIUM-AS, IM
14	57670	2795.8	0.16%	6	16775	ASOPENWAY, UA
15	202174	2764.0	0.03%	1	2764	EMSP-AS, NO
16	5413	2600.7	2.39%	97	252269	WAVENET-AS5413, GB
17	265046	2480.0	0.05%	3	4960	NET-MAIS INFORMATICA, BR
18	265566	2168.7	0.06%	3	6506	TELESISTEMAS PENINSULARES SA DE CV, MX
19	45720	2042.0	0.02%	2	2042	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
20	213641	1998.0	0.02%	1	1998	AS213641, DE
21	25048	1919.7	0.05%	5	5759	DSNET DSNet, GB
22	21570	1897.0	0.02%	94	1897	ACI-1, CA
23	269518	1896.5	0.04%	6	3793	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
24	214929	1894.5	0.04%	2	3789	LASTRESPONSE, AT
25	12335	1819.7	0.05%	3	5459	TARIO, RU
26	136867	1709.0	0.05%	3	5127	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
27	264534	1626.0	0.02%	1	1626	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
28	329454	1535.0	0.01%	1	1535	Vitel-Wireless, NG
29	401017	1518.0	0.01%	1	1518	AAICE-ASN, US
30	52852	1451.8	0.07%	5	7259	Last Mile Telecom, BR
31	28657	1400.0	0.04%	3	4200	MD Brasil - Tecnologia da Informacao Ltda, BR
32	395327	1394.0	0.01%	1	1394	BAYFEDCU, US
33	328811	1309.0	0.01%	1	1309	FCB-AS, MW
34	147117	1244.0	0.02%	2	2488	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
35	40138	1189.8	0.14%	12	14277	MDNET, US
36	207633	1161.0	0.02%	2	2322	NOSSPEED, TR
37	150935	1136.0	0.03%	3	3408	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
38	61850	1104.0	0.07%	7	7728	A2 TELECOMUNICACOES LTDA, BR
39	41383	1059.0	0.02%	8	2118	WOLASN, GB
40	328665	955.5	0.02%	2	1911	ZRA-AS, ZM
41	136501	946.6	0.04%	20	4733	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
42	149614	938.0	0.01%	1	938	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
43	328300	935.0	0.01%	1	935	Malawi-Bank-AS, MW
44	204318	909.0	0.01%	1	909	BGPTOOLS-QA, GB
45	8613	906.0	0.03%	3	2718	WAVENET-AS8613, GB
46	197320	901.0	0.01%	1	901	NPA-AS, GB
47	198918	899.5	0.07%	8	7196	MST-ZELDOL-AS MST Moskva Zeldol, RU
48	12654	888.2	0.13%	22	13323	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
49	202364	879.0	0.01%	4	879	GRIDH, GB
50	137258	851.0	0.01%
Total		107111.8	5.41%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11194	0.10%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	10960	0.10%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10619	0.10%	16509 -- AMAZON-02, US
4	55.27.217.0/24	10276	0.09%	335 -- DNIC-ASBLK-00306-00371, US
5	55.27.56.0/24	10256	0.09%	335 -- DNIC-ASBLK-00306-00371, US
6	55.67.56.0/24	10250	0.09%	335 -- DNIC-ASBLK-00306-00371, US
7	55.74.57.0/24	10238	0.09%	335 -- DNIC-ASBLK-00306-00371, US
8	55.74.56.0/24	10216	0.09%	335 -- DNIC-ASBLK-00306-00371, US
9	186.83.117.0/24	8360	0.08%	10620 -- Telmex Colombia S.A., CO
10	173.82.125.0/24	8314	0.08%	16509 -- AMAZON-02, US
11	130.137.108.0/24	8243	0.08%	16509 -- AMAZON-02, US
12	130.137.12.0/24	8152	0.08%	16509 -- AMAZON-02, US
13	130.137.230.0/24	7621	0.07%	16509 -- AMAZON-02, US
14	173.82.66.0/24	7246	0.07%	16509 -- AMAZON-02, US
15	130.137.219.0/24	7232	0.07%	16509 -- AMAZON-02, US
16	177.86.122.0/23	7202	0.07%	52852 -- Last Mile Telecom, BR
17	130.137.80.0/24	7198	0.07%	16509 -- AMAZON-02, US
18	130.137.118.0/24	7126	0.07%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
19	199.47.232.0/22	7005	0.06%	13341 -- TRANQUILITY, US
20	84.205.66.0/24	6947	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
21	130.137.79.0/24	6926	0.06%	16509 -- AMAZON-02, US
22	130.137.150.0/24	6653	0.06%	16509 -- AMAZON-02, US
23	195.114.122.0/24	6639	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
24	173.82.67.0/24	6639	0.06%	16509 -- AMAZON-02, US
25	130.137.124.0/24	6628	0.06%	16509 -- AMAZON-02, US
26	37.252.60.0/22	6601	0.06%	5413 -- WAVENET-AS5413, GB
27	193.105.156.0/24	6600	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
28	195.114.123.0/24	6563	0.06%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
29	173.82.63.0/24	6562	0.06%	16509 -- AMAZON-02, US
30	5.22.224.0/21	6551	0.06%	5413 -- WAVENET-AS5413, GB
31	5.252.36.0/22	6547	0.06%	5413 -- WAVENET-AS5413, GB
32	130.137.16.0/24	6547	0.06%	16509 -- AMAZON-02, US
33	130.137.127.0/24	6546	0.06%	16509 -- AMAZON-02, US
34	130.137.28.0/24	6540	0.06%	16509 -- AMAZON-02, US
35	130.137.111.0/24	6537	0.06%	16509 -- AMAZON-02, US
36	173.82.108.0/24	6529	0.06%	16509 -- AMAZON-02, US
37	45.83.76.0/24	6504	0.06%	5413 -- WAVENET-AS5413, GB
38	45.83.76.0/22	6502	0.06%	5413 -- WAVENET-AS5413, GB
39	130.137.227.0/24	6497	0.06%	16509 -- AMAZON-02, US
40	173.82.129.0/24	6491	0.06%	16509 -- AMAZON-02, US
41	45.132.148.0/23	6480	0.06%	5413 -- WAVENET-AS5413, GB
42	45.172.92.0/22	6480	0.06%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
43	130.137.47.0/24	6470	0.06%	16509 -- AMAZON-02, US
44	130.137.90.0/24	6467	0.06%	16509 -- AMAZON-02, US
45	130.137.89.0/24	6460	0.06%	14618 -- AMAZON-AES, US
46	130.137.147.0/24	6449	0.06%	16509 -- AMAZON-02, US
47	130.137.26.0/24	6445	0.06%	16509 -- AMAZON-02, US
48	130.137.78.0/24	6429	0.06%	16509 -- AMAZON-02, US
49	46.31.71.0/24	6428	0.06%	5413 -- WAVENET-AS5413, GB
50	130.137.130.0/24	6414	0.06%	16509 -- AMAZON-02, US
Total		370779	3.41%

14 Day BGP Profile: 27-November-2025 00:00 - 10-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	24795946
Number of Prefix Updates:	10554987
Number of Prefix Withdrawals:	298792
Average Prefixes per BGP Update:	0.44
Average BGP Update Messages per second:	20.50
Average Prefix Updates per second:	8.97
Peak BGP Update Message Rate per second:	51782	(16:13:06 Fri, 28-Nov-2025)
Peak Prefix Update Rate per second:	986	(16:34:58 Fri, 5-Dec-2025)
Peak Prefix Withdraw Rate per second:	29581	(02:33:13 Sat, 29-Nov-2025)
Prefix Count:	1063606
Updated Prefix Count:	775793
Stable Prefix Count:	287813
Origin AS Count:	77688
Updated Origin AS Count:	63976
Stable Origin AS Count:	13712
Unique Path Count:	580262
Updated Path Count:	432134
Stable Path Count:	148128

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.