The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 06 December 2025 06:25 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	16509	319634	2.56%	14373	22.24	AMAZON-02, US
2	5413	261977	2.10%	98	2673.23	WAVENET-AS5413, GB
3	8151	224947	1.80%	12762	17.63	UNINET, MX
4	4538	163021	1.31%	5031	32.40	ERX-CERNET-BKB China Education and Research Network Center, CN
5	42337	115020	0.92%	689	166.94	RESPINA-AS, IR
6	10620	78274	0.63%	3459	22.63	Telmex Colombia S.A., CO
7	7821	72291	0.58%	17	4252.41	ZAYO-MN, US
8	39891	69725	0.56%	4833	14.43	ALJAWWALSTC-AS, SA
9	9198	63870	0.51%	1033	61.83	KAZTELECOM-AS, KZ
10	335	58253	0.47%	224	260.06	DNIC-ASBLK-00306-00371, US
11	13188	54072	0.43%	1607	33.65	TRIOLAN, UA
12	58224	53855	0.43%	1167	46.15	TCI, IR
13	18101	53797	0.43%	683	78.77	RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI, IN
14	36903	53702	0.43%	1250	42.96	MT-MPLS, MA
15	4181	53682	0.43%	1196	44.88	TDS-AS, US
16	22773	51801	0.42%	4792	10.81	ASN-CXA-ALL-CCI-22773-RDC, US
17	8796	48184	0.39%	499	96.56	FD-298-8796, US
18	197207	47339	0.38%	985	48.06	MCCI-AS, IR
19	135031	46344	0.37%	59	785.49	RNPL-AS-AP RI Networks Pvt. Ltd., IN
20	7552	43556	0.35%	4013	10.85	VIETEL-AS-AP Viettel Group, VN
21	15766	42998	0.34%	15	2866.53	DOMICILIUM-AS, IM
22	9829	42865	0.34%	1864	23.00	BSNL-NIB National Internet Backbone, IN
23	36914	39224	0.31%	584	67.16	KENET-AS, KE
24	40065	38945	0.31%	567	68.69	CNSERVERS, US
25	212477	38650	0.31%	142	272.18	ROYALE-AS, NL
26	8452	35547	0.29%	2128	16.70	TE-AS TE-AS, EG
27	17561	34265	0.27%	2897	11.83	LCS-AS-AP LARUS Limited, HK
28	25184	34149	0.27%	226	151.10	AFRANET to AS62265 announce AS25184, IR
29	647	34027	0.27%	429	79.32	DNIC-ASBLK-00616-00665, US
30	9009	33928	0.27%	4101	8.27	M247, RO
31	21859	33638	0.27%	1603	20.98	ZEN-ECN, US
32	174	33226	0.27%	4484	7.41	COGENT-174, US
33	45899	32979	0.26%	3328	9.91	VNPT-AS-VN VNPT Corp, VN
34	20940	32477	0.26%	4007	8.11	AKAMAI-ASN1, NL
35	24835	32303	0.26%	1986	16.27	RAYA-AS, EG
36	36352	31650	0.25%	2922	10.83	AS-COLOCROSSING, US
37	11492	28863	0.23%	4789	6.03	CABLEONE, US
38	9808	28852	0.23%	13643	2.11	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
39	7713	28049	0.23%	3716	7.55	TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
40	20473	27503	0.22%	1450	18.97	AS-VULTR, US
41	11776	26952	0.22%	1909	14.12	ATLANTICBB-JOHNSTOWN, US
42	398101	26602	0.21%	240	110.84	GO-DADDY-COM-LLC, US
43	31148	26191	0.21%	555	47.19	FREENET_LLC, UA
44	56	26036	0.21%	983	26.49	DNIC-AS-00056, US
45	16625	25580	0.21%	3015	8.48	AKAMAI-AS, US
46	12389	25575	0.21%	3179	8.04	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
47	13999	24908	0.20%	2528	9.85	Mega Cable, S.A. de C.V., MX
48	11830	24848	0.20%	1992	12.47	Instituto Costarricense de Electricidad y Telecom., CR
49	44244	24748	0.20%	700	35.35	IRANCELL-AS, IR
50	29091	24603	0.20%	90	273.37	IPNXng, NG
Total		2873525	23.03%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	208907	6416.0	0.05%	1	6416	RISING-BRIDGE-TECHNOLOGY, GB
2	396950	6132.0	0.05%	1	6132	COMSTBARTH-AS, FR
3	33764	4443.0	0.04%	3	4443	AFRINIC-ZA-JNB-AS, MU
4	7821	4252.4	0.58%	17	72291	ZAYO-MN, US
5	56644	4226.0	0.03%	2	4226	SYNFS-AS, GB
6	7954	3804.3	0.09%	3	11413	IMMENSE-NETWORKS, US
7	886	3775.0	0.03%	1	3775	SBH-IX-SERVICES, FR
8	52852	3512.5	0.06%	5	7025	Last Mile Telecom, BR
9	29469	3453.0	0.03%	1	3453	GTU Khmelnitsky, Ukraine, UA
10	45720	3106.0	0.02%	2	3106	IDNIC-LPDB-AS-ID Lembaga Pengelola Dana Bergulir, ID
11	15766	2866.5	0.34%	15	42998	DOMICILIUM-AS, IM
12	5413	2673.2	2.10%	98	261977	WAVENET-AS5413, GB
13	213641	2476.0	0.02%	1	2476	AS213641, DE
14	25048	2408.7	0.06%	5	7226	DSNET DSNet, GB
15	269518	2116.0	0.03%	6	4232	INFIBRA TELECOM SERVICOS DE COMUNICACAO E TECNOLOG, BR
16	149038	2080.0	0.03%	2	4160	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
17	329574	2043.0	0.02%	1	2043	Sierra_Leone_Research_and_Education_Netw, SL
18	264534	1887.0	0.02%	1	1887	SPOT PROMOCOES, EVENTOS E MERCHAND LTDA, BR
19	21570	1874.0	0.02%	94	1874	ACI-1, CA
20	214675	1845.0	0.01%	1	1845	STARLAMP Starlamp Network Project, JP
21	57670	1830.0	0.09%	6	10980	ASOPENWAY, UA
22	136867	1788.0	0.04%	3	5364	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
23	13341	1781.8	0.06%	5	7127	TRANQUILITY, US
24	51897	1731.0	0.01%	1	1731	MIHAN, IR
25	36719	1720.0	0.01%	1	1720	MMU-53-AS-NET, US
26	265566	1635.5	0.05%	4	6542	TELESISTEMAS PENINSULARES SA DE CV, MX
27	401017	1527.0	0.01%	1	1527	AAICE-ASN, US
28	395327	1386.0	0.01%	1	1386	BAYFEDCU, US
29	150935	1349.7	0.03%	3	4049	IDNIC-PONOROGO-ID Dinas Komunikasi Informatika dan Statistik Kab. Ponorogo, ID
30	147117	1327.5	0.02%	2	2655	IDNIC-BLACKFAOS-AS-ID PT Blackfaos Data Nusantara, ID
31	28657	1320.3	0.03%	3	3961	MD Brasil - Tecnologia da Informacao Ltda, BR
32	207633	1302.5	0.02%	2	2605	NOSSPEED, TR
33	329454	1282.0	0.01%	1	1282	Vitel-Wireless, NG
34	328811	1254.0	0.01%	1	1254	FCB-AS, MW
35	41383	1230.0	0.02%	8	2460	WOLASN, GB
36	40138	1148.1	0.11%	12	13777	MDNET, US
37	328665	1108.0	0.02%	2	2216	ZRA-AS, ZM
38	137258	1090.0	0.01%	1	1090	SHIRAZI-AS-AP Shirazi Investments Pvt Ltd., PK
39	27892	1058.0	0.01%	1	1058	Universidad del Zulia, VE
40	149614	1051.0	0.01%	1	1051	TSIIPL-AS-IN TRANSACTION SOLUTIONS INTERNATIONAL INDIA PRIVATE LIMITED, IN
41	197320	1039.0	0.01%	1	1039	NPA-AS, GB
42	8613	1032.7	0.02%	3	3098	WAVENET-AS8613, GB
43	136501	970.2	0.04%	20	4851	HKBNES-AS-AP HKBN Enterprise Solutions HK Limited, HK
44	202174	957.0	0.01%	1	957	EMSP-AS, NO
45	211851	914.0	0.01%	2	1828	WEB9-YAZILIM-BILISIM-HIZMETLERI, TR
46	12654	900.1	0.11%	22	13501	RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
47	198918	890.4	0.06%	8	7123	MST-ZELDOL-AS MST Moskva Zeldol, RU
48	8791	848.0	0.02%	3	2544	FOEHN, GB
49	141952	806.0	0.01%	2	806	IDNIC-LINKKITA-AS-ID PT Link Kita Teknologi, ID
50	204318	798.0	0.01%
Total		102465.4	4.51%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	11393	0.09%	7954 -- IMMENSE-NETWORKS, US
2	124.195.190.0/24	10830	0.08%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
3	130.137.231.0/24	10677	0.08%	16509 -- AMAZON-02, US
4	55.74.57.0/24	10344	0.08%	335 -- DNIC-ASBLK-00306-00371, US
5	55.74.56.0/24	10293	0.08%	335 -- DNIC-ASBLK-00306-00371, US
6	55.27.217.0/24	10272	0.08%	335 -- DNIC-ASBLK-00306-00371, US
7	55.27.56.0/24	10255	0.08%	335 -- DNIC-ASBLK-00306-00371, US
8	55.67.56.0/24	10251	0.08%	335 -- DNIC-ASBLK-00306-00371, US
9	130.137.108.0/24	8412	0.07%	16509 -- AMAZON-02, US
10	173.82.125.0/24	8390	0.07%	16509 -- AMAZON-02, US
11	130.137.12.0/24	8296	0.06%	16509 -- AMAZON-02, US
12	186.83.117.0/24	8199	0.06%	10620 -- Telmex Colombia S.A., CO
13	130.137.230.0/24	7805	0.06%	16509 -- AMAZON-02, US
14	173.82.66.0/24	7286	0.06%	16509 -- AMAZON-02, US
15	130.137.80.0/24	7258	0.06%	16509 -- AMAZON-02, US
16	130.137.219.0/24	7229	0.06%	16509 -- AMAZON-02, US
17	130.137.118.0/24	7169	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
18	84.205.66.0/24	7098	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
19	199.47.232.0/22	7088	0.06%	13341 -- TRANQUILITY, US
20	177.86.122.0/23	6981	0.05%	52852 -- Last Mile Telecom, BR
21	130.137.79.0/24	6974	0.05%	16509 -- AMAZON-02, US
22	195.114.122.0/24	6663	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
23	193.105.156.0/24	6641	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
24	173.82.67.0/24	6624	0.05%	16509 -- AMAZON-02, US
25	37.252.60.0/22	6599	0.05%	5413 -- WAVENET-AS5413, GB
26	5.252.36.0/22	6589	0.05%	5413 -- WAVENET-AS5413, GB
27	195.114.123.0/24	6589	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
28	130.137.124.0/24	6566	0.05%	16509 -- AMAZON-02, US
29	5.22.224.0/21	6560	0.05%	5413 -- WAVENET-AS5413, GB
30	173.82.63.0/24	6560	0.05%	16509 -- AMAZON-02, US
31	130.137.127.0/24	6553	0.05%	16509 -- AMAZON-02, US
32	130.137.90.0/24	6549	0.05%	16509 -- AMAZON-02, US
33	173.82.108.0/24	6547	0.05%	16509 -- AMAZON-02, US
34	130.137.89.0/24	6534	0.05%	14618 -- AMAZON-AES, US
35	45.83.76.0/24	6495	0.05%	5413 -- WAVENET-AS5413, GB
36	45.83.76.0/22	6493	0.05%	5413 -- WAVENET-AS5413, GB
37	45.172.92.0/22	6475	0.05%	265566 -- TELESISTEMAS PENINSULARES SA DE CV, MX
38	45.132.148.0/23	6462	0.05%	5413 -- WAVENET-AS5413, GB
39	130.137.130.0/24	6462	0.05%	16509 -- AMAZON-02, US
40	130.137.28.0/24	6458	0.05%	16509 -- AMAZON-02, US
41	173.82.129.0/24	6453	0.05%	16509 -- AMAZON-02, US
42	130.137.26.0/24	6433	0.05%	16509 -- AMAZON-02, US
43	130.137.150.0/24	6424	0.05%	16509 -- AMAZON-02, US
44	130.137.78.0/24	6418	0.05%	16509 -- AMAZON-02, US
45	44.31.52.0/24	6416	0.05%	208907 -- RISING-BRIDGE-TECHNOLOGY, GB
46	46.31.71.0/24	6402	0.05%	5413 -- WAVENET-AS5413, GB
47	130.137.47.0/24	6392	0.05%	16509 -- AMAZON-02, US
48	130.137.16.0/24	6363	0.05%	16509 -- AMAZON-02, US
49	130.137.99.0/24	6346	0.05%	16509 -- AMAZON-02, US
50	130.137.105.0/24	6344	0.05%	16509 -- AMAZON-02, US
Total		370910	2.88%

14 Day BGP Profile: 22-November-2025 00:00 - 5-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	29474814
Number of Prefix Updates:	12465966
Number of Prefix Withdrawals:	311360
Average Prefixes per BGP Update:	0.43
Average BGP Update Messages per second:	24.37
Average Prefix Updates per second:	10.56
Peak BGP Update Message Rate per second:	65321	(19:59:10 Mon, 24-Nov-2025)
Peak Prefix Update Rate per second:	986	(16:34:58 Fri, 5-Dec-2025)
Peak Prefix Withdraw Rate per second:	27759	(21:20:10 Mon, 24-Nov-2025)
Prefix Count:	1063183
Updated Prefix Count:	780773
Stable Prefix Count:	282410
Origin AS Count:	77679
Updated Origin AS Count:	64670
Stable Origin AS Count:	13009
Unique Path Count:	584248
Updated Path Count:	438934
Stable Path Count:	145314

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.