The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 16 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	389580	9.95%	3977	97.96	VIETEL-AS-AP Viettel Group, VN
2	39891	192011	4.90%	2058	93.30	ALJAWWALSTC-AS, SA
3	199340	109390	2.79%	3778	28.95	HONG-GUANWAN, HK
4	18403	106478	2.72%	3372	31.58	FPT-AS-AP FPT Telecom Company, VN
5	202256	102279	2.61%	770	132.83	LAWLIETNET, CN
6	16509	96987	2.48%	5412	17.92	AMAZON-02, US
7	28126	95955	2.45%	68	1411.10	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
8	40138	85406	2.18%	38	2247.53	MDNET, US
9	211894	67126	1.71%	8	8390.75	UNGLEICH-PLACE18, CH
10	28649	65616	1.68%	77	852.16	Desktop Sigmanet Comunicacao Multimidia SA, BR
11	204508	52821	1.35%	17	3107.12	MLGT, IT
12	21351	48303	1.23%	17	2841.35	CANALPLUSTELECOM, GP
13	199553	38607	0.99%	6	6434.50	UNGLEICH-PLACE5, CH
14	396509	33665	0.86%	13	2589.62	LETSCLOUD, US
15	28598	33138	0.85%	14	2367.00	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
16	212691	31038	0.79%	2	15519.00	ARONSTRECKER-AS, DE
17	206672	30512	0.78%	65	469.42	LOGISPIN-AS, AT
18	328327	29200	0.75%	6	4866.67	ASAP-AS, ZA
19	136873	28747	0.73%	8	3593.38	MEGADATA-AS-ID MEGADATA-ISP, ID
20	43350	28434	0.73%	24	1184.75	NFORCE, NL
21	213092	27512	0.70%	14	1965.14	MARBLEIS, GB
22	38266	26498	0.68%	1385	19.13	VIL-AS-AP Vodafone Idea Ltd, IN
23	205651	25243	0.64%	1	25243.00	CATOFES, CN
24	262448	24952	0.64%	11	2268.36	DIALHOST INTERNET EIRELI, BR
25	48635	22488	0.57%	21	1070.86	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
26	137409	22120	0.56%	1102	20.07	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
27	271466	21389	0.55%	10	2138.90	UC Telecom Ltda, BR
28	151810	20965	0.54%	4	5241.25	PHYLAXISINC-AS-AP Phylaxis Korea, KR
29	30058	20776	0.53%	146	142.30	FDCSERVERS, US
30	47331	20456	0.52%	1272	16.08	TTNET, TR
31	263262	19366	0.49%	19	1019.26	MOV TELECOM LTDA, BR
32	62610	18990	0.48%	79	240.38	ZEN-DPS, US
33	204210	18757	0.48%	4	4689.25	ZEUSPACKAGINGLTD, IE
34	10103	18597	0.47%	12	1549.75	HKBN-AS-AP HK Broadband Network Ltd., HK
35	139341	18541	0.47%	181	102.44	ACE-AS-AP ACE, SG
36	61573	17886	0.46%	13	1375.85	Ip Telecom, BR
37	214450	17211	0.44%	2	8605.50	OGL-AS, DE
38	264525	17000	0.43%	5	3400.00	Coelho Tecnologia, BR
39	203664	16491	0.42%	1	16491.00	LANXING-AS, CN
40	8386	15524	0.40%	20	776.20	KOCNET, TR
41	2018	15228	0.39%	14	1087.71	TENET-1, ZA
42	149500	15117	0.39%	4	3779.25	SR-AS-AP Shane Renshaw, HK
43	210564	14921	0.38%	1	14921.00	SWANTZTER-AS, SE
44	215956	14831	0.38%	35	423.74	MYIP-AS MyIP.be ~ AS215956, BE
45	39900	14093	0.36%	3	4697.67	GOODTEC, LV
46	272053	13948	0.36%	1	13948.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
47	31673	13695	0.35%	11	1245.00	UNISERVER-AS, NL
48	13335	13612	0.35%	3062	4.45	CLOUDFLARENET, US
49	45271	13263	0.34%	1250	10.61	VIL-AS-AP Vodafone Idea Ltd, IN
50	210100	13172	0.34%	23	572.70	SQ5WEP Network. ASN used for homelab, research, education, and networking projects., PL
Total		2217935	56.64%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	205651	25243.0	0.64%	1	25243	CATOFES, CN
2	203664	16491.0	0.42%	1	16491	LANXING-AS, CN
3	212691	15519.0	0.79%	2	31038	ARONSTRECKER-AS, DE
4	210564	14921.0	0.38%	1	14921	SWANTZTER-AS, SE
5	272053	13948.0	0.36%	1	13948	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
6	214450	8605.5	0.44%	2	17211	OGL-AS, DE
7	264525	8500.0	0.43%	5	17000	Coelho Tecnologia, BR
8	211894	8390.8	1.71%	8	67126	UNGLEICH-PLACE18, CH
9	151650	7848.0	0.20%	1	7848	SWITCHFIBER-AS-AP Switch Fiber, PH
10	271944	6577.0	0.17%	1	6577	AUDIBEL TELECOMUNICACIONES S.A., AR
11	199553	6434.5	0.99%	6	38607	UNGLEICH-PLACE5, CH
12	199678	6042.0	0.15%	1	6042	AS-6RW-, RU
13	328327	5840.0	0.75%	6	29200	ASAP-AS, ZA
14	22690	5623.0	0.14%	1	5623	AxiomNET-AS, RW
15	399916	5540.0	0.14%	1	5540	PACKETSTREAM-NAM, US
16	209898	5495.5	0.28%	2	10991	UNGLEICH-UNGLEICH-UPSTREAM, CH
17	151810	5241.2	0.54%	4	20965	PHYLAXISINC-AS-AP Phylaxis Korea, KR
18	268487	5201.0	0.13%	5	5201	PRISMA TELECOMUNICACOES LTDA. EPP, BR
19	20915	4735.0	0.12%	1	4735	HUNDRED-PERCENT-IT, GB
20	39900	4697.7	0.36%	3	14093	GOODTEC, LV
21	204210	4689.2	0.48%	4	18757	ZEUSPACKAGINGLTD, IE
22	328631	4360.0	0.11%	1	4360	BallitoISP, ZA
23	28458	4332.5	0.22%	2	8665	IENTC S DE RL DE CV, MX
24	138535	4216.3	0.32%	3	12649	FURDEVS-AS-AP Wu Qi, CN
25	198090	3912.0	0.10%	1	3912	ASLIBRA, IT
26	149500	3779.2	0.39%	4	15117	SR-AS-AP Shane Renshaw, HK
27	210796	3765.5	0.19%	2	7531	BJOERN-SCHLEYER Bjoern Schleyer, DE
28	30083	3696.0	0.28%	3	11088	AS-30083-US-VELIA-NET, DE
29	136873	3593.4	0.73%	8	28747	MEGADATA-AS-ID MEGADATA-ISP, ID
30	211645	3450.0	0.09%	1	3450	SPG, DE
31	153997	3306.0	0.17%	2	6612	PROJECTELIV-AS-AP PROJECT ELIV, KR
32	139311	3237.0	0.17%	2	6474	STELLAIT-AS-AP Stella IT, KR
33	204508	3107.1	1.35%	17	52821	MLGT, IT
34	396509	3060.5	0.86%	13	33665	LETSCLOUD, US
35	394106	2939.5	0.15%	2	5879	BEIDEAL, US
36	199235	2891.0	0.07%	1	2891	MIKROHALO-HU-AS, HU
37	21351	2841.4	1.23%	17	48303	CANALPLUSTELECOM, GP
38	262901	2795.0	0.14%	2	5590	Vcnet Provedora de Internet Ltda., BR
39	53147	2784.5	0.14%	2	5569	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
40	265063	2504.0	0.06%	1	2504	NEX INTERNET, BR
41	44212	2468.0	0.25%	4	9872	ADELPHINET1-AS, IE
42	266911	2408.0	0.18%	3	7224	VicNet Telecom, BR
43	28598	2367.0	0.85%	14	33138	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
44	262448	2268.4	0.64%	11	24952	DIALHOST INTERNET EIRELI, BR
45	40138	2247.5	2.18%	38	85406	MDNET, US
46	203168	2158.0	0.06%	1	2158	AOSUGI-AS, GB
47	271466	2138.9	0.55%	10	21389	UC Telecom Ltda, BR
48	199689	2077.0	0.05%	1	2077	JOSHA-PRIOR Netralex BYOIP, NL
49	208948	2039.0	0.16%	3	6117	RECYCLED-CLOUD-AS, CH
50	213092	1965.1	0.70%
Total		272290.2	22.01%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a02:1391:5100::/40	48284	1.14%	21351 -- CANALPLUSTELECOM, GP
2	2804:248:100::/40	33122	0.78%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
3	2a0d:2904::/44	25243	0.60%	205651 -- CATOFES, CN
4	2001:678:114::/48	18843	0.45%	212691 -- ARONSTRECKER-AS, DE
5	2a0c:b641:302::/47	18755	0.44%	204210 -- ZEUSPACKAGINGLTD, IE
6	2804:20fc:2000::/36	16995	0.40%	264525 -- Coelho Tecnologia, BR
7	2a0e:aa07:e044::/48	16492	0.39%	203664 -- LANXING-AS, CN
8	240d:c010:165::/48	15554	0.37%	139341 -- ACE-AS-AP ACE, SG
9	2001:67c:20fc::/48	14922	0.35%	210564 -- SWANTZTER-AS, SE
10	2803:5d10::/32	13948	0.33%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
11	2406:840:e620::/48	12576	0.30%	138535 -- FURDEVS-AS-AP Wu Qi, CN
12	2a0e:8f02:f05e::/48	12195	0.29%	212691 -- ARONSTRECKER-AS, DE
13	2a05:4140:304::/48	11385	0.27%	204508 -- MLGT, IT
14	2a05:4140:333::/48	11269	0.27%	204508 -- MLGT, IT
15	2a05:4140:380::/42	11264	0.27%	204508 -- MLGT, IT
16	2a05:4140:316::/48	11234	0.27%	204508 -- MLGT, IT
17	2605:de00:bb::/48	11086	0.26%	30083 -- AS-30083-US-VELIA-NET, DE
18	2a0a:e5c0:76::/48	10990	0.26%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
19	2c0f:c00:3000::/36	10103	0.24%	328327 -- ASAP-AS, ZA
20	2c0f:c00:100::/40	9863	0.23%	328327 -- ASAP-AS, ZA
21	2a0a:e5c1:517::/48	9657	0.23%	199553 -- UNGLEICH-PLACE5, CH
22	2a0a:e5c0:45::/48	9629	0.23%	199553 -- UNGLEICH-PLACE5, CH
23	2a0a:e5c0:16::/48	9625	0.23%	199553 -- UNGLEICH-PLACE5, CH
24	2a0a:5480:5::/48	9543	0.23%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:1::/48	9539	0.23%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:4::/48	9539	0.23%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:1ac::/48	9538	0.23%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480::/48	9530	0.23%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480:3::/48	9520	0.23%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480:2::/48	9505	0.23%	211894 -- UNGLEICH-PLACE18, CH
31	2c0f:c00:200::/40	9232	0.22%	328327 -- ASAP-AS, ZA
32	2a0a:e5c0:42::/48	9204	0.22%	199553 -- UNGLEICH-PLACE5, CH
33	2001:678:658::/48	8715	0.21%	214450 -- OGL-AS, DE
34	2806:202::/32	8663	0.21%	28458 -- IENTC S DE RL DE CV, MX
35	2a0e:b107:19cb::/48	8498	0.20%	214450 -- OGL-AS, DE
36	2401:2260::/32	7848	0.19%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
37	2a13:aac4:1000::/36	7638	0.18%	204508 -- MLGT, IT
38	2600:6c7f:9370::/44	7363	0.17%	19115 -- CHARTER-19115-DC, US
39	2a14:7580:ed58::/46	7158	0.17%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
40	2a14:7580:ee0b::/48	7108	0.17%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
41	2a0a:6040:b40::/48	7037	0.17%	200329 -- HYPERTOAST-AS, US
42	2605:9cc0:c06::/48	7017	0.17%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
43	2402:be0:4000::/34	7010	0.17%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
44	2a0f:9400:7370::/48	6921	0.16%	213092 -- MARBLEIS, GB
45	2402:be0:8000::/34	6873	0.16%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
46	2a14:3f87:9800::/38	6849	0.16%	64289 -- MACARNE, US
47	2001:df1:7f40::/48	6635	0.16%	9423 -- SERVERKINGIOLLC-AS-AP ServerKing.io, LLC, US
48	2a0f:9400:737d::/48	6634	0.16%	213092 -- MARBLEIS, GB
49	2402:be0:fefe::/48	6600	0.16%	153997 -- PROJECTELIV-AS-AP PROJECT ELIV, KR
50	2803:6610::/32	6577	0.16%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
Total		579328	13.78%

14 Day BGP Update Statistics Profile: 1-January-2026 00:00 - 15-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16512268
Number of Prefix Changes:	19467359
Number of Prefix Updates:	16512268
Number of Prefix Withdrawals:	2955091
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	13.65
Average Prefix Updates per second:	16.09
Peak BGP Update Message Rate per second:	9043	(06:13:50 Thu, 15-Jan-2026)
Peak Prefix Update Rate per second:	9043	(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:	3916538	(0.24 of recv'd updates)
Number of RIB Prefix Withdrawals:	303644	(0.10 of recv'd withdrawals)
Peak RIB Update Rate per second:	8439	(06:13:50 Thu, 15-Jan-2026)
Peak RIB Withdrawal Rate per second:	2963	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	253738
Updated Prefix Count:	246020
Stable Prefix Count:	7718
Seen Origin AS Count:	36076
Updated Origin AS Count:	31725
Stable Origin AS Count:	4351
Seen Unique Path Count:	171897
Updated Path Count:	135092
Stable Path Count:	36805

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