The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 20 January 2026 01:14 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	7552	326291	8.85%	3977	82.04	VIETEL-AS-AP Viettel Group, VN
2	39891	120944	3.28%	2058	58.77	ALJAWWALSTC-AS, SA
3	18403	118430	3.21%	3504	33.80	FPT-AS-AP FPT Telecom Company, VN
4	199340	101474	2.75%	3753	27.04	HONG-GUANWAN, HK
5	16509	99062	2.69%	5423	18.27	AMAZON-02, US
6	28126	93124	2.52%	68	1369.47	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	40138	87593	2.37%	38	2305.08	MDNET, US
8	28649	66665	1.81%	77	865.78	Desktop Sigmanet Comunicacao Multimidia SA, BR
9	211894	66132	1.79%	8	8266.50	UNGLEICH-PLACE18, CH
10	10103	54969	1.49%	12	4580.75	HKBN-AS-AP HK Broadband Network Ltd., HK
11	204508	50853	1.38%	17	2991.35	MLGT, IT
12	21351	48444	1.31%	17	2849.65	CANALPLUSTELECOM, GP
13	202256	46351	1.26%	731	63.41	LAWLIETNET, CN
14	9287	36996	1.00%	8	4624.50	TIDCC-AS-AP True Internet Data Center Company Limited, TH
15	199553	36208	0.98%	6	6034.67	UNGLEICH-PLACE5, CH
16	396509	34924	0.95%	13	2686.46	LETSCLOUD, US
17	136873	33808	0.92%	8	4226.00	MEGADATA-AS-ID MEGADATA-ISP, ID
18	28598	33512	0.91%	14	2393.71	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
19	212691	31584	0.86%	2	15792.00	ARONSTRECKER-AS, DE
20	38266	29652	0.80%	1385	21.41	VIL-AS-AP Vodafone Idea Ltd, IN
21	328327	28970	0.79%	6	4828.33	ASAP-AS, ZA
22	271466	26209	0.71%	10	2620.90	UC Telecom Ltda, BR
23	262448	24615	0.67%	11	2237.73	DIALHOST INTERNET EIRELI, BR
24	213092	22680	0.61%	14	1620.00	MARBLEIS, GB
25	151810	22251	0.60%	4	5562.75	PHYLAXISINC-AS-AP Phylaxis Korea, KR
26	272053	21708	0.59%	1	21708.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
27	137409	21243	0.58%	1102	19.28	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
28	48635	21208	0.57%	21	1009.90	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
29	204210	20111	0.55%	4	5027.75	ZEUSPACKAGINGLTD, IE
30	43350	19963	0.54%	24	831.79	NFORCE, NL
31	30058	19199	0.52%	146	131.50	FDCSERVERS, US
32	47331	18662	0.51%	1272	14.67	TTNET, TR
33	8386	18342	0.50%	20	917.10	KOCNET, TR
34	45271	18257	0.49%	1250	14.61	VIL-AS-AP Vodafone Idea Ltd, IN
35	214450	17822	0.48%	2	8911.00	OGL-AS, DE
36	205651	17480	0.47%	1	17480.00	CATOFES, CN
37	61573	16906	0.46%	13	1300.46	Ip Telecom, BR
38	2018	15325	0.42%	14	1094.64	TENET-1, ZA
39	210564	14979	0.41%	1	14979.00	SWANTZTER-AS, SE
40	9423	14882	0.40%	4	3720.50	SERVERKINGIOLLC-AS-AP ServerKing.io, LLC, US
41	13335	14620	0.40%	3135	4.66	CLOUDFLARENET, US
42	42772	14444	0.39%	19	760.21	A1-BY-AS, BY
43	210100	13172	0.36%	23	572.70	SQ5WEP Network. ASN used for homelab, research, education, and networking projects., PL
44	149500	13061	0.35%	4	3265.25	SR-AS-AP Shane Renshaw, HK
45	5416	12907	0.35%	1042	12.39	Internet Service Provider, BH
46	11172	12826	0.35%	2240	5.73	Alestra, S. de R.L. de C.V., MX
47	203664	12797	0.35%	1	12797.00	LANXING-AS, CN
48	264525	12659	0.34%	5	2531.80	Coelho Tecnologia, BR
49	21664	12510	0.34%	37	338.11	AMZN-BYOASN, US
50	138535	12501	0.34%	3	4167.00	FURDEVS-AS-AP Wu Qi, CN
Total		2049325	55.57%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	272053	21708.0	0.59%	1	21708	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
2	205651	17480.0	0.47%	1	17480	CATOFES, CN
3	212691	15792.0	0.86%	2	31584	ARONSTRECKER-AS, DE
4	210564	14979.0	0.41%	1	14979	SWANTZTER-AS, SE
5	203664	12797.0	0.35%	1	12797	LANXING-AS, CN
6	214450	8911.0	0.48%	2	17822	OGL-AS, DE
7	211894	8266.5	1.79%	8	66132	UNGLEICH-PLACE18, CH
8	264525	6329.5	0.34%	5	12659	Coelho Tecnologia, BR
9	199553	6034.7	0.98%	6	36208	UNGLEICH-PLACE5, CH
10	26445	5951.0	0.16%	1	5951	OWL, US
11	268487	5809.0	0.16%	5	5809	PRISMA TELECOMUNICACOES LTDA. EPP, BR
12	328327	5794.0	0.79%	6	28970	ASAP-AS, ZA
13	151810	5562.8	0.60%	4	22251	PHYLAXISINC-AS-AP Phylaxis Korea, KR
14	204210	5027.8	0.55%	4	20111	ZEUSPACKAGINGLTD, IE
15	20915	4836.0	0.13%	1	4836	HUNDRED-PERCENT-IT, GB
16	9287	4624.5	1.00%	8	36996	TIDCC-AS-AP True Internet Data Center Company Limited, TH
17	10103	4580.8	1.49%	12	54969	HKBN-AS-AP HK Broadband Network Ltd., HK
18	271944	4550.0	0.12%	1	4550	AUDIBEL TELECOMUNICACIONES S.A., AR
19	203168	4518.0	0.12%	1	4518	AOSUGI-AS, GB
20	136873	4226.0	0.92%	8	33808	MEGADATA-AS-ID MEGADATA-ISP, ID
21	151650	4185.0	0.11%	1	4185	SWITCHFIBER-AS-AP Switch Fiber, PH
22	138535	4167.0	0.34%	3	12501	FURDEVS-AS-AP Wu Qi, CN
23	399916	4081.0	0.11%	1	4081	PACKETSTREAM-NAM, US
24	198090	3895.0	0.11%	1	3895	ASLIBRA, IT
25	30083	3843.7	0.31%	3	11531	AS-30083-US-VELIA-NET, DE
26	9423	3720.5	0.40%	4	14882	SERVERKINGIOLLC-AS-AP ServerKing.io, LLC, US
27	209898	3532.5	0.19%	2	7065	UNGLEICH-UNGLEICH-UPSTREAM, CH
28	211645	3476.0	0.09%	1	3476	SPG, DE
29	210796	3386.0	0.18%	2	6772	BJOERN-SCHLEYER Bjoern Schleyer, DE
30	149500	3265.2	0.35%	4	13061	SR-AS-AP Shane Renshaw, HK
31	396509	3174.9	0.95%	13	34924	LETSCLOUD, US
32	204508	2991.4	1.38%	17	50853	MLGT, IT
33	199235	2856.0	0.08%	1	2856	MIKROHALO-HU-AS, HU
34	21351	2849.6	1.31%	17	48444	CANALPLUSTELECOM, GP
35	153997	2822.0	0.15%	2	5644	PROJECTELIV-AS-AP PROJECT ELIV, KR
36	262901	2797.0	0.15%	2	5594	Vcnet Provedora de Internet Ltda., BR
37	199678	2711.0	0.07%	1	2711	AS-6RW-, RU
38	53147	2695.5	0.15%	2	5391	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
39	271466	2620.9	0.71%	10	26209	UC Telecom Ltda, BR
40	139311	2522.0	0.14%	2	5044	STELLAIT-AS-AP Stella IT, KR
41	47279	2491.0	0.07%	1	2491	TPIP-AS, DE
42	44212	2458.0	0.27%	4	9832	ADELPHINET1-AS, IE
43	28598	2393.7	0.91%	14	33512	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
44	208948	2371.0	0.19%	3	7113	RECYCLED-CLOUD-AS, CH
45	394106	2362.5	0.13%	2	4725	BEIDEAL, US
46	274816	2358.0	0.06%	1	2358	CONECTA NET LTDA, BR
47	205157	2311.2	0.31%	5	11556	CIDNOC, US
48	40138	2305.1	2.37%	38	87593	MDNET, US
49	199689	2252.0	0.06%	1	2252	JOSHA-PRIOR Netralex BYOIP, NL
50	262448	2237.7	0.67%
Total		256910	24.63%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a02:1391:5100::/40	48416	1.21%	21351 -- CANALPLUSTELECOM, GP
2	2804:248:100::/40	33444	0.84%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
3	2803:5d10::/32	21708	0.54%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
4	2a0c:b641:302::/47	20106	0.50%	204210 -- ZEUSPACKAGINGLTD, IE
5	2a0d:2904::/44	17480	0.44%	205651 -- CATOFES, CN
6	2001:678:114::/48	16508	0.41%	212691 -- ARONSTRECKER-AS, DE
7	2607:74c0:140::/44	15850	0.40%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
8	2607:74c0:120::/44	15739	0.39%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
9	2a0e:8f02:f05e::/48	15076	0.38%	212691 -- ARONSTRECKER-AS, DE
10	2001:67c:20fc::/48	14980	0.37%	210564 -- SWANTZTER-AS, SE
11	2607:74c0:130::/44	14924	0.37%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
12	2a0e:aa07:e044::/48	12797	0.32%	203664 -- LANXING-AS, CN
13	2804:20fc:2000::/36	12655	0.32%	264525 -- Coelho Tecnologia, BR
14	2406:840:e620::/48	12294	0.31%	138535 -- FURDEVS-AS-AP Wu Qi, CN
15	2605:de00:bb::/48	11529	0.29%	30083 -- AS-30083-US-VELIA-NET, DE
16	2a05:4140:304::/48	11402	0.29%	204508 -- MLGT, IT
17	2a05:4140:380::/42	11130	0.28%	204508 -- MLGT, IT
18	2a05:4140:333::/48	11109	0.28%	204508 -- MLGT, IT
19	2a05:4140:316::/48	11052	0.28%	204508 -- MLGT, IT
20	2600:6c7f:9370::/44	10479	0.26%	19115 -- CHARTER-19115-DC, US
21	240d:c010:165::/48	10022	0.25%	139341 -- ACE-AS-AP ACE, SG
22	2c0f:c00:3000::/36	9744	0.24%	328327 -- ASAP-AS, ZA
23	2c0f:c00:100::/40	9653	0.24%	328327 -- ASAP-AS, ZA
24	2c0f:c00:200::/40	9571	0.24%	328327 -- ASAP-AS, ZA
25	2a0a:e5c0:45::/48	9486	0.24%	199553 -- UNGLEICH-PLACE5, CH
26	2a0a:e5c0:16::/48	9486	0.24%	199553 -- UNGLEICH-PLACE5, CH
27	2a0a:5480:4::/48	9413	0.24%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480:1::/48	9413	0.24%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480::/48	9404	0.24%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480:5::/48	9401	0.24%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:5480:1ac::/48	9397	0.24%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480:3::/48	9392	0.24%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:2::/48	9371	0.23%	211894 -- UNGLEICH-PLACE18, CH
34	2001:678:658::/48	8989	0.23%	214450 -- OGL-AS, DE
35	2a0a:e5c0:42::/48	8962	0.22%	199553 -- UNGLEICH-PLACE5, CH
36	2a0e:b107:19cb::/48	8833	0.22%	214450 -- OGL-AS, DE
37	2a0a:e5c1:517::/48	7928	0.20%	199553 -- UNGLEICH-PLACE5, CH
38	2001:fb0:1000::/48	7480	0.19%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
39	2001:fb0:1002::/48	7450	0.19%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
40	2001:fb0:1001::/48	7394	0.19%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
41	2600:140f:3200::/48	7389	0.18%	55644 -- VIL-AS-AP Vodafone Idea Ltd, IN
42	2404:3280:a::/48	7372	0.18%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
43	2a0f:9400:7370::/48	7338	0.18%	213092 -- MARBLEIS, GB
44	2404:3280::/32	7286	0.18%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
45	2a0d:d9c3::/32	7111	0.18%	208948 -- RECYCLED-CLOUD-AS, CH
46	2a0f:9400:737d::/48	7085	0.18%	213092 -- MARBLEIS, GB
47	2a0a:e5c0:76::/48	7064	0.18%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
48	2804:7bf8::/34	6938	0.17%	271466 -- UC Telecom Ltda, BR
49	2804:7bf8:4000::/34	6773	0.17%	271466 -- UC Telecom Ltda, BR
50	2804:7bf8:8000::/34	6594	0.17%	271466 -- UC Telecom Ltda, BR
Total		590417	14.81%

14 Day BGP Update Statistics Profile: 5-January-2026 00:00 - 19-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16551846
Number of Prefix Changes:	19431372
Number of Prefix Updates:	16551846
Number of Prefix Withdrawals:	2879526
Average Prefixes per BGP Update:	1.17
Average BGP Update Messages per second:	13.68
Average Prefix Updates per second:	16.06
Peak BGP Update Message Rate per second:	9146	(06:13:50 Thu, 15-Jan-2026)
Peak Prefix Update Rate per second:	9146	(06:13:50 Thu, 15-Jan-2026)
Peak Prefix Withdraw Rate per second:	4055	(12:10:34 Sat, 10-Jan-2026, )
Number of RIB Prefix Updates:	3688664	(0.22 of recv'd updates)
Number of RIB Prefix Withdrawals:	306220	(0.11 of recv'd withdrawals)
Peak RIB Update Rate per second:	8555	(06:13:50 Thu, 15-Jan-2026)
Peak RIB Withdrawal Rate per second:	3293	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	254194
Updated Prefix Count:	246679
Stable Prefix Count:	7515
Seen Origin AS Count:	36117
Updated Origin AS Count:	35857
Stable Origin AS Count:	260
Seen Unique Path Count:	177353
Updated Path Count:	139766
Stable Path Count:	37587

Five Minute Average of Per-Second Updated and Withdrawn Prefix Rate

Five Minute Peak of Per-Second Updated and Withdrawn Prefix Rate

Five Minute Average Per-Second Updated Prefix Rate by Update Type

Five Minute Peak of Per-Second Updated Prefix Rate by Update Type

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates