The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 17 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	333145	8.66%	3977	83.77	VIETEL-AS-AP Viettel Group, VN
2	39891	170258	4.42%	2058	82.73	ALJAWWALSTC-AS, SA
3	199340	106988	2.78%	3771	28.37	HONG-GUANWAN, HK
4	18403	106519	2.77%	3384	31.48	FPT-AS-AP FPT Telecom Company, VN
5	16509	97777	2.54%	5422	18.03	AMAZON-02, US
6	28126	94488	2.46%	68	1389.53	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	40138	89700	2.33%	38	2360.53	MDNET, US
8	202256	88972	2.31%	770	115.55	LAWLIETNET, CN
9	10103	76487	1.99%	12	6373.92	HKBN-AS-AP HK Broadband Network Ltd., HK
10	211894	66932	1.74%	8	8366.50	UNGLEICH-PLACE18, CH
11	28649	64991	1.69%	77	844.04	Desktop Sigmanet Comunicacao Multimidia SA, BR
12	204508	52305	1.36%	17	3076.76	MLGT, IT
13	21351	48486	1.26%	17	2852.12	CANALPLUSTELECOM, GP
14	199553	38698	1.01%	6	6449.67	UNGLEICH-PLACE5, CH
15	38266	35540	0.92%	1386	25.64	VIL-AS-AP Vodafone Idea Ltd, IN
16	212691	34643	0.90%	2	17321.50	ARONSTRECKER-AS, DE
17	396509	34290	0.89%	13	2637.69	LETSCLOUD, US
18	206672	31360	0.82%	65	482.46	LOGISPIN-AS, AT
19	136873	30969	0.80%	8	3871.12	MEGADATA-AS-ID MEGADATA-ISP, ID
20	328327	30119	0.78%	6	5019.83	ASAP-AS, ZA
21	28598	28779	0.75%	14	2055.64	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
22	43350	25857	0.67%	24	1077.38	NFORCE, NL
23	213092	25589	0.67%	14	1827.79	MARBLEIS, GB
24	262448	25079	0.65%	11	2279.91	DIALHOST INTERNET EIRELI, BR
25	137409	23824	0.62%	1102	21.62	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
26	205651	23260	0.60%	1	23260.00	CATOFES, CN
27	271466	22682	0.59%	10	2268.20	UC Telecom Ltda, BR
28	48635	21894	0.57%	21	1042.57	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
29	47331	20432	0.53%	1272	16.06	TTNET, TR
30	30058	20103	0.52%	146	137.69	FDCSERVERS, US
31	151810	19328	0.50%	4	4832.00	PHYLAXISINC-AS-AP Phylaxis Korea, KR
32	204210	19290	0.50%	4	4822.50	ZEUSPACKAGINGLTD, IE
33	214450	17483	0.45%	2	8741.50	OGL-AS, DE
34	61573	17376	0.45%	13	1336.62	Ip Telecom, BR
35	62610	17263	0.45%	79	218.52	ZEN-DPS, US
36	139341	16960	0.44%	181	93.70	ACE-AS-AP ACE, SG
37	272053	16200	0.42%	1	16200.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
38	2018	15847	0.41%	14	1131.93	TENET-1, ZA
39	8386	15803	0.41%	20	790.15	KOCNET, TR
40	45271	15351	0.40%	1250	12.28	VIL-AS-AP Vodafone Idea Ltd, IN
41	210564	14930	0.39%	1	14930.00	SWANTZTER-AS, SE
42	263262	14806	0.38%	19	779.26	MOV TELECOM LTDA, BR
43	203664	14712	0.38%	1	14712.00	LANXING-AS, CN
44	149500	14562	0.38%	4	3640.50	SR-AS-AP Shane Renshaw, HK
45	264525	14143	0.37%	5	2828.60	Coelho Tecnologia, BR
46	13335	13711	0.36%	3135	4.37	CLOUDFLARENET, US
47	210100	13172	0.34%	23	572.70	SQ5WEP Network. ASN used for homelab, research, education, and networking projects., PL
48	11172	12768	0.33%	2231	5.72	Alestra, S. de R.L. de C.V., MX
49	21664	12688	0.33%	37	342.92	AMZN-BYOASN, US
50	138535	12613	0.33%	3	4204.33	FURDEVS-AS-AP Wu Qi, CN
Total		2179172	56.62%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	205651	23260.0	0.60%	1	23260	CATOFES, CN
2	212691	17321.5	0.90%	2	34643	ARONSTRECKER-AS, DE
3	272053	16200.0	0.42%	1	16200	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
4	210564	14930.0	0.39%	1	14930	SWANTZTER-AS, SE
5	203664	14712.0	0.38%	1	14712	LANXING-AS, CN
6	214450	8741.5	0.45%	2	17483	OGL-AS, DE
7	211894	8366.5	1.74%	8	66932	UNGLEICH-PLACE18, CH
8	141145	8170.0	0.21%	1	8170	GIGANET-AS-ID PT Giga Digital Nusantara, ID
9	151650	7085.0	0.18%	1	7085	SWITCHFIBER-AS-AP Switch Fiber, PH
10	264525	7071.5	0.37%	5	14143	Coelho Tecnologia, BR
11	199553	6449.7	1.01%	6	38698	UNGLEICH-PLACE5, CH
12	10103	6373.9	1.99%	12	76487	HKBN-AS-AP HK Broadband Network Ltd., HK
13	271944	6069.0	0.16%	1	6069	AUDIBEL TELECOMUNICACIONES S.A., AR
14	199678	6044.0	0.16%	1	6044	AS-6RW-, RU
15	328327	6023.8	0.78%	6	30119	ASAP-AS, ZA
16	399916	5094.0	0.13%	1	5094	PACKETSTREAM-NAM, US
17	209898	5058.0	0.26%	2	10116	UNGLEICH-UNGLEICH-UPSTREAM, CH
18	151810	4832.0	0.50%	4	19328	PHYLAXISINC-AS-AP Phylaxis Korea, KR
19	204210	4822.5	0.50%	4	19290	ZEUSPACKAGINGLTD, IE
20	268487	4822.0	0.13%	5	4822	PRISMA TELECOMUNICACOES LTDA. EPP, BR
21	20915	4797.0	0.12%	1	4797	HUNDRED-PERCENT-IT, GB
22	22690	4730.0	0.12%	1	4730	AxiomNET-AS, RW
23	138535	4204.3	0.33%	3	12613	FURDEVS-AS-AP Wu Qi, CN
24	198090	3900.0	0.10%	1	3900	ASLIBRA, IT
25	136873	3871.1	0.80%	8	30969	MEGADATA-AS-ID MEGADATA-ISP, ID
26	28458	3784.0	0.20%	2	7568	IENTC S DE RL DE CV, MX
27	30083	3725.0	0.29%	3	11175	AS-30083-US-VELIA-NET, DE
28	149500	3640.5	0.38%	4	14562	SR-AS-AP Shane Renshaw, HK
29	328631	3639.0	0.09%	1	3639	BallitoISP, ZA
30	210796	3590.5	0.19%	2	7181	BJOERN-SCHLEYER Bjoern Schleyer, DE
31	211645	3446.0	0.09%	1	3446	SPG, DE
32	153997	3291.0	0.17%	2	6582	PROJECTELIV-AS-AP PROJECT ELIV, KR
33	274816	3171.0	0.08%	1	3171	CONECTA NET LTDA, BR
34	396509	3117.3	0.89%	13	34290	LETSCLOUD, US
35	204508	3076.8	1.36%	17	52305	MLGT, IT
36	139311	3010.5	0.16%	2	6021	STELLAIT-AS-AP Stella IT, KR
37	203168	2905.0	0.08%	1	2905	AOSUGI-AS, GB
38	199235	2870.0	0.07%	1	2870	MIKROHALO-HU-AS, HU
39	21351	2852.1	1.26%	17	48486	CANALPLUSTELECOM, GP
40	262901	2734.5	0.14%	2	5469	Vcnet Provedora de Internet Ltda., BR
41	53147	2730.0	0.14%	2	5460	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
42	394106	2707.0	0.14%	2	5414	BEIDEAL, US
43	44212	2498.0	0.26%	4	9992	ADELPHINET1-AS, IE
44	6871	2402.0	0.19%	3	7206	PLUSNET UK Internet Service Provider, GB
45	40138	2360.5	2.33%	38	89700	MDNET, US
46	262448	2279.9	0.65%	11	25079	DIALHOST INTERNET EIRELI, BR
47	271466	2268.2	0.59%	10	22682	UC Telecom Ltda, BR
48	265063	2134.0	0.06%	1	2134	NEX INTERNET, BR
49	199689	2126.0	0.06%	1	2126	JOSHA-PRIOR Netralex BYOIP, NL
50	208948	2060.0	0.16%
Total		275368.1	22.76%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a02:1391:5100::/40	48471	1.17%	21351 -- CANALPLUSTELECOM, GP
2	2804:248:100::/40	28763	0.69%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
3	2a0d:2904::/44	23260	0.56%	205651 -- CATOFES, CN
4	2001:678:114::/48	20675	0.50%	212691 -- ARONSTRECKER-AS, DE
5	2a0c:b641:302::/47	19287	0.46%	204210 -- ZEUSPACKAGINGLTD, IE
6	2803:5d10::/32	16200	0.39%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
7	2607:74c0:100::/44	15586	0.38%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
8	2607:74c0:140::/44	15578	0.38%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
9	2607:74c0:120::/44	15459	0.37%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
10	2607:74c0:110::/44	15164	0.37%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
11	2001:67c:20fc::/48	14931	0.36%	210564 -- SWANTZTER-AS, SE
12	2a0e:aa07:e044::/48	14713	0.35%	203664 -- LANXING-AS, CN
13	2607:74c0:130::/44	14665	0.35%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
14	240d:c010:165::/48	14188	0.34%	139341 -- ACE-AS-AP ACE, SG
15	2804:20fc:2000::/36	14138	0.34%	264525 -- Coelho Tecnologia, BR
16	2a0e:8f02:f05e::/48	13968	0.34%	212691 -- ARONSTRECKER-AS, DE
17	2406:840:e620::/48	12543	0.30%	138535 -- FURDEVS-AS-AP Wu Qi, CN
18	2a05:4140:304::/48	11272	0.27%	204508 -- MLGT, IT
19	2a05:4140:333::/48	11238	0.27%	204508 -- MLGT, IT
20	2a05:4140:380::/42	11222	0.27%	204508 -- MLGT, IT
21	2605:de00:bb::/48	11173	0.27%	30083 -- AS-30083-US-VELIA-NET, DE
22	2a05:4140:316::/48	11166	0.27%	204508 -- MLGT, IT
23	2c0f:c00:3000::/36	10361	0.25%	328327 -- ASAP-AS, ZA
24	2c0f:c00:100::/40	10163	0.24%	328327 -- ASAP-AS, ZA
25	2a0a:e5c0:76::/48	10116	0.24%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
26	2a0a:e5c1:517::/48	9646	0.23%	199553 -- UNGLEICH-PLACE5, CH
27	2a0a:e5c0:45::/48	9609	0.23%	199553 -- UNGLEICH-PLACE5, CH
28	2a0a:e5c0:16::/48	9607	0.23%	199553 -- UNGLEICH-PLACE5, CH
29	2c0f:c00:200::/40	9593	0.23%	328327 -- ASAP-AS, ZA
30	2a0a:5480:1::/48	9529	0.23%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:5480:4::/48	9529	0.23%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480:5::/48	9528	0.23%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:1ac::/48	9522	0.23%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480::/48	9521	0.23%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:3::/48	9510	0.23%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:5480:2::/48	9491	0.23%	211894 -- UNGLEICH-PLACE18, CH
37	2a0a:e5c0:42::/48	9380	0.23%	199553 -- UNGLEICH-PLACE5, CH
38	2001:678:658::/48	8874	0.21%	214450 -- OGL-AS, DE
39	2a0e:b107:19cb::/48	8609	0.21%	214450 -- OGL-AS, DE
40	2407:5440::/48	8170	0.20%	141145 -- GIGANET-AS-ID PT Giga Digital Nusantara, ID
41	2806:202::/32	7566	0.18%	28458 -- IENTC S DE RL DE CV, MX
42	2a13:aac4:1000::/36	7376	0.18%	204508 -- MLGT, IT
43	2600:6c7f:9370::/44	7375	0.18%	19115 -- CHARTER-19115-DC, US
44	2a02:16c8::/35	7204	0.17%	6871 -- PLUSNET UK Internet Service Provider, GB
45	2a0a:6040:b40::/48	7157	0.17%	200329 -- HYPERTOAST-AS, US
46	2401:2260::/32	7085	0.17%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
47	2a0f:9400:7370::/48	6981	0.17%	213092 -- MARBLEIS, GB
48	2605:9cc0:c06::/48	6828	0.16%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
49	2402:be0:4000::/34	6751	0.16%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
50	2a0f:9400:737d::/48	6678	0.16%	213092 -- MARBLEIS, GB
Total		615419	14.81%

14 Day BGP Update Statistics Profile: 2-January-2026 00:00 - 16-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16610634
Number of Prefix Changes:	19553777
Number of Prefix Updates:	16610634
Number of Prefix Withdrawals:	2943143
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	13.73
Average Prefix Updates per second:	16.17
Peak BGP Update Message Rate per second:	9070	(06:13:50 Thu, 15-Jan-2026)
Peak Prefix Update Rate per second:	9070	(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:	3847744	(0.23 of recv'd updates)
Number of RIB Prefix Withdrawals:	302942	(0.10 of recv'd withdrawals)
Peak RIB Update Rate per second:	8464	(06:13:50 Thu, 15-Jan-2026)
Peak RIB Withdrawal Rate per second:	2963	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	254021
Updated Prefix Count:	246337
Stable Prefix Count:	7684
Seen Origin AS Count:	36096
Updated Origin AS Count:	31744
Stable Origin AS Count:	4352
Seen Unique Path Count:	172594
Updated Path Count:	135596
Stable Path Count:	36998

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