The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 18 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	344526	9.22%	3977	86.63	VIETEL-AS-AP Viettel Group, VN
2	39891	153153	4.10%	2058	74.42	ALJAWWALSTC-AS, SA
3	18403	106565	2.85%	3384	31.49	FPT-AS-AP FPT Telecom Company, VN
4	199340	104587	2.80%	3766	27.77	HONG-GUANWAN, HK
5	16509	98341	2.63%	5422	18.14	AMAZON-02, US
6	28126	97164	2.60%	68	1428.88	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	40138	87198	2.33%	38	2294.68	MDNET, US
8	202256	75831	2.03%	770	98.48	LAWLIETNET, CN
9	211894	66670	1.78%	8	8333.75	UNGLEICH-PLACE18, CH
10	28649	65134	1.74%	77	845.90	Desktop Sigmanet Comunicacao Multimidia SA, BR
11	204508	52339	1.40%	17	3078.76	MLGT, IT
12	21351	48337	1.29%	17	2843.35	CANALPLUSTELECOM, GP
13	199553	38468	1.03%	6	6411.33	UNGLEICH-PLACE5, CH
14	212691	35346	0.95%	2	17673.00	ARONSTRECKER-AS, DE
15	38266	34711	0.93%	1386	25.04	VIL-AS-AP Vodafone Idea Ltd, IN
16	396509	34509	0.92%	13	2654.54	LETSCLOUD, US
17	136873	31957	0.86%	8	3994.62	MEGADATA-AS-ID MEGADATA-ISP, ID
18	328327	29528	0.79%	6	4921.33	ASAP-AS, ZA
19	28598	29208	0.78%	14	2086.29	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
20	262448	25280	0.68%	11	2298.18	DIALHOST INTERNET EIRELI, BR
21	213092	25055	0.67%	14	1789.64	MARBLEIS, GB
22	137409	24453	0.65%	1102	22.19	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
23	43350	23841	0.64%	24	993.38	NFORCE, NL
24	271466	23145	0.62%	10	2314.50	UC Telecom Ltda, BR
25	206672	21752	0.58%	65	334.65	LOGISPIN-AS, AT
26	48635	21506	0.58%	21	1024.10	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
27	205651	21284	0.57%	1	21284.00	CATOFES, CN
28	10103	21093	0.56%	12	1757.75	HKBN-AS-AP HK Broadband Network Ltd., HK
29	30058	19726	0.53%	146	135.11	FDCSERVERS, US
30	204210	19508	0.52%	4	4877.00	ZEUSPACKAGINGLTD, IE
31	151810	18456	0.49%	4	4614.00	PHYLAXISINC-AS-AP Phylaxis Korea, KR
32	272053	18004	0.48%	1	18004.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
33	214450	17811	0.48%	2	8905.50	OGL-AS, DE
34	61573	17052	0.46%	13	1311.69	Ip Telecom, BR
35	47331	16328	0.44%	1272	12.84	TTNET, TR
36	8386	16045	0.43%	20	802.25	KOCNET, TR
37	264525	16026	0.43%	5	3205.20	Coelho Tecnologia, BR
38	62610	15747	0.42%	79	199.33	ZEN-DPS, US
39	2018	15661	0.42%	14	1118.64	TENET-1, ZA
40	23679	15286	0.41%	26	587.92	NUSANET-AS-ID PT. Media Antar Nusa, ID
41	139341	15164	0.41%	182	83.32	ACE-AS-AP ACE, SG
42	210564	15020	0.40%	1	15020.00	SWANTZTER-AS, SE
43	13335	14344	0.38%	3133	4.58	CLOUDFLARENET, US
44	149500	14112	0.38%	4	3528.00	SR-AS-AP Shane Renshaw, HK
45	45271	13986	0.37%	1250	11.19	VIL-AS-AP Vodafone Idea Ltd, IN
46	203664	13537	0.36%	1	13537.00	LANXING-AS, CN
47	210100	13172	0.35%	23	572.70	SQ5WEP Network. ASN used for homelab, research, education, and networking projects., PL
48	263262	12939	0.35%	19	681.00	MOV TELECOM LTDA, BR
49	11172	12777	0.34%	2231	5.73	Alestra, S. de R.L. de C.V., MX
50	21664	12627	0.34%	37	341.27	AMZN-BYOASN, US
Total		2084309	55.77%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	205651	21284.0	0.57%	1	21284	CATOFES, CN
2	272053	18004.0	0.48%	1	18004	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
3	212691	17673.0	0.95%	2	35346	ARONSTRECKER-AS, DE
4	210564	15020.0	0.40%	1	15020	SWANTZTER-AS, SE
5	203664	13537.0	0.36%	1	13537	LANXING-AS, CN
6	214450	8905.5	0.48%	2	17811	OGL-AS, DE
7	211894	8333.8	1.78%	8	66670	UNGLEICH-PLACE18, CH
8	141145	8184.0	0.22%	1	8184	GIGANET-AS-ID PT Giga Digital Nusantara, ID
9	264525	8013.0	0.43%	5	16026	Coelho Tecnologia, BR
10	199553	6411.3	1.03%	6	38468	UNGLEICH-PLACE5, CH
11	151650	6123.0	0.16%	1	6123	SWITCHFIBER-AS-AP Switch Fiber, PH
12	199678	5997.0	0.16%	1	5997	AS-6RW-, RU
13	328327	5905.6	0.79%	6	29528	ASAP-AS, ZA
14	271944	5578.0	0.15%	1	5578	AUDIBEL TELECOMUNICACIONES S.A., AR
15	268487	4962.0	0.13%	5	4962	PRISMA TELECOMUNICACOES LTDA. EPP, BR
16	204210	4877.0	0.52%	4	19508	ZEUSPACKAGINGLTD, IE
17	20915	4837.0	0.13%	1	4837	HUNDRED-PERCENT-IT, GB
18	399916	4811.0	0.13%	1	4811	PACKETSTREAM-NAM, US
19	209898	4675.0	0.25%	2	9350	UNGLEICH-UNGLEICH-UPSTREAM, CH
20	151810	4614.0	0.49%	4	18456	PHYLAXISINC-AS-AP Phylaxis Korea, KR
21	138535	4189.3	0.34%	3	12568	FURDEVS-AS-AP Wu Qi, CN
22	136873	3994.6	0.86%	8	31957	MEGADATA-AS-ID MEGADATA-ISP, ID
23	198090	3894.0	0.10%	1	3894	ASLIBRA, IT
24	22690	3844.0	0.10%	1	3844	AxiomNET-AS, RW
25	30083	3822.0	0.31%	3	11466	AS-30083-US-VELIA-NET, DE
26	203168	3561.0	0.10%	1	3561	AOSUGI-AS, GB
27	149500	3528.0	0.38%	4	14112	SR-AS-AP Shane Renshaw, HK
28	211645	3430.0	0.09%	1	3430	SPG, DE
29	28458	3201.5	0.17%	2	6403	IENTC S DE RL DE CV, MX
30	153997	3174.5	0.17%	2	6349	PROJECTELIV-AS-AP PROJECT ELIV, KR
31	396509	3137.2	0.92%	13	34509	LETSCLOUD, US
32	204508	3078.8	1.40%	17	52339	MLGT, IT
33	328631	2927.0	0.08%	1	2927	BallitoISP, ZA
34	139311	2911.5	0.16%	2	5823	STELLAIT-AS-AP Stella IT, KR
35	274816	2902.0	0.08%	1	2902	CONECTA NET LTDA, BR
36	21351	2843.4	1.29%	17	48337	CANALPLUSTELECOM, GP
37	199235	2821.0	0.08%	1	2821	MIKROHALO-HU-AS, HU
38	262901	2705.5	0.14%	2	5411	Vcnet Provedora de Internet Ltda., BR
39	210796	2668.0	0.14%	2	5336	BJOERN-SCHLEYER Bjoern Schleyer, DE
40	394106	2645.0	0.14%	2	5290	BEIDEAL, US
41	53147	2587.0	0.14%	2	5174	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
42	44212	2510.0	0.27%	4	10040	ADELPHINET1-AS, IE
43	6871	2404.3	0.19%	3	7213	PLUSNET UK Internet Service Provider, GB
44	271466	2314.5	0.62%	10	23145	UC Telecom Ltda, BR
45	262448	2298.2	0.68%	11	25280	DIALHOST INTERNET EIRELI, BR
46	40138	2294.7	2.33%	38	87198	MDNET, US
47	199689	2224.0	0.06%	1	2224	JOSHA-PRIOR Netralex BYOIP, NL
48	213092	2087.9	0.67%	14	25055	MARBLEIS, GB
49	28598	2086.3	0.78%	14	29208	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
50	208948	2072.0	0.17%
Total		265902.4	22.57%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a02:1391:5100::/40	48314	1.20%	21351 -- CANALPLUSTELECOM, GP
2	2804:248:100::/40	29192	0.72%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
3	2a0d:2904::/44	21284	0.53%	205651 -- CATOFES, CN
4	2001:678:114::/48	21027	0.52%	212691 -- ARONSTRECKER-AS, DE
5	2a0c:b641:302::/47	19504	0.48%	204210 -- ZEUSPACKAGINGLTD, IE
6	2803:5d10::/32	18004	0.45%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
7	2804:20fc:2000::/36	16022	0.40%	264525 -- Coelho Tecnologia, BR
8	2001:67c:20fc::/48	15021	0.37%	210564 -- SWANTZTER-AS, SE
9	2a0e:8f02:f05e::/48	14319	0.35%	212691 -- ARONSTRECKER-AS, DE
10	2a0e:aa07:e044::/48	13537	0.34%	203664 -- LANXING-AS, CN
11	240d:c010:165::/48	12615	0.31%	139341 -- ACE-AS-AP ACE, SG
12	2406:840:e620::/48	12361	0.31%	138535 -- FURDEVS-AS-AP Wu Qi, CN
13	2605:de00:bb::/48	11464	0.28%	30083 -- AS-30083-US-VELIA-NET, DE
14	2a05:4140:304::/48	11413	0.28%	204508 -- MLGT, IT
15	2a05:4140:333::/48	11322	0.28%	204508 -- MLGT, IT
16	2a05:4140:380::/42	11262	0.28%	204508 -- MLGT, IT
17	2a05:4140:316::/48	11201	0.28%	204508 -- MLGT, IT
18	2c0f:c00:3000::/36	9997	0.25%	328327 -- ASAP-AS, ZA
19	2c0f:c00:200::/40	9783	0.24%	328327 -- ASAP-AS, ZA
20	2c0f:c00:100::/40	9746	0.24%	328327 -- ASAP-AS, ZA
21	2a0a:e5c1:517::/48	9611	0.24%	199553 -- UNGLEICH-PLACE5, CH
22	2a0a:e5c0:45::/48	9573	0.24%	199553 -- UNGLEICH-PLACE5, CH
23	2a0a:e5c0:16::/48	9571	0.24%	199553 -- UNGLEICH-PLACE5, CH
24	2a0a:5480:5::/48	9497	0.24%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:1ac::/48	9493	0.24%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:1::/48	9491	0.24%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:4::/48	9490	0.24%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480::/48	9484	0.23%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480:3::/48	9473	0.23%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480:2::/48	9460	0.23%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:e5c0:76::/48	9349	0.23%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
32	2a0a:e5c0:42::/48	9289	0.23%	199553 -- UNGLEICH-PLACE5, CH
33	2001:678:658::/48	9010	0.22%	214450 -- OGL-AS, DE
34	2a0e:b107:19cb::/48	8801	0.22%	214450 -- OGL-AS, DE
35	2407:5440::/48	8184	0.20%	141145 -- GIGANET-AS-ID PT Giga Digital Nusantara, ID
36	2600:6c7f:9370::/44	8113	0.20%	19115 -- CHARTER-19115-DC, US
37	2a02:16c8::/35	7211	0.18%	6871 -- PLUSNET UK Internet Service Provider, GB
38	2a13:aac4:1000::/36	7110	0.18%	204508 -- MLGT, IT
39	2a0f:9400:7370::/48	7087	0.18%	213092 -- MARBLEIS, GB
40	2a0a:6040:b40::/48	6865	0.17%	200329 -- HYPERTOAST-AS, US
41	2605:9cc0:c06::/48	6744	0.17%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
42	2a0f:9400:737d::/48	6736	0.17%	213092 -- MARBLEIS, GB
43	2402:be0:4000::/34	6654	0.16%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
44	2804:b44:a000::/36	6587	0.16%	262448 -- DIALHOST INTERNET EIRELI, BR
45	2806:202::/32	6401	0.16%	28458 -- IENTC S DE RL DE CV, MX
46	2804:b44:1000::/36	6400	0.16%	262448 -- DIALHOST INTERNET EIRELI, BR
47	2402:be0:8000::/34	6359	0.16%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
48	2402:be0:fefe::/48	6337	0.16%	153997 -- PROJECTELIV-AS-AP PROJECT ELIV, KR
49	2402:be0:fefd::/48	6262	0.16%	151349 -- YUKI-NET-AS-AP Yuki Network Ltd, KR
50	2a0d:d9c3::/32	6214	0.15%	208948 -- RECYCLED-CLOUD-AS, CH
Total		568244	14.10%

14 Day BGP Update Statistics Profile: 3-January-2026 00:00 - 17-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16505679
Number of Prefix Changes:	19435711
Number of Prefix Updates:	16505679
Number of Prefix Withdrawals:	2930032
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	13.65
Average Prefix Updates per second:	16.07
Peak BGP Update Message Rate per second:	9100	(06:13:50 Thu, 15-Jan-2026)
Peak Prefix Update Rate per second:	9100	(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:	3735028	(0.23 of recv'd updates)
Number of RIB Prefix Withdrawals:	302175	(0.10 of recv'd withdrawals)
Peak RIB Update Rate per second:	8495	(06:13:50 Thu, 15-Jan-2026)
Peak RIB Withdrawal Rate per second:	2963	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	254001
Updated Prefix Count:	246390
Stable Prefix Count:	7611
Seen Origin AS Count:	36109
Updated Origin AS Count:	31760
Stable Origin AS Count:	4349
Seen Unique Path Count:	172880
Updated Path Count:	136150
Stable Path Count:	36730

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