The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 19 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	346779	9.45%	3977	87.20	VIETEL-AS-AP Viettel Group, VN
2	39891	132784	3.62%	2058	64.52	ALJAWWALSTC-AS, SA
3	18403	106689	2.91%	3504	30.45	FPT-AS-AP FPT Telecom Company, VN
4	199340	102814	2.80%	3759	27.35	HONG-GUANWAN, HK
5	16509	99834	2.72%	5422	18.41	AMAZON-02, US
6	28126	90740	2.47%	68	1334.41	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	40138	89330	2.43%	38	2350.79	MDNET, US
8	211894	66351	1.81%	8	8293.88	UNGLEICH-PLACE18, CH
9	28649	66257	1.81%	77	860.48	Desktop Sigmanet Comunicacao Multimidia SA, BR
10	202256	62156	1.69%	759	81.89	LAWLIETNET, CN
11	204508	51283	1.40%	17	3016.65	MLGT, IT
12	21351	48602	1.32%	17	2858.94	CANALPLUSTELECOM, GP
13	199553	38262	1.04%	6	6377.00	UNGLEICH-PLACE5, CH
14	396509	34357	0.94%	13	2642.85	LETSCLOUD, US
15	212691	33847	0.92%	2	16923.50	ARONSTRECKER-AS, DE
16	136873	32772	0.89%	8	4096.50	MEGADATA-AS-ID MEGADATA-ISP, ID
17	38266	32131	0.88%	1386	23.18	VIL-AS-AP Vodafone Idea Ltd, IN
18	28598	30125	0.82%	14	2151.79	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
19	328327	28335	0.77%	6	4722.50	ASAP-AS, ZA
20	271466	25259	0.69%	10	2525.90	UC Telecom Ltda, BR
21	262448	24936	0.68%	11	2266.91	DIALHOST INTERNET EIRELI, BR
22	151810	24297	0.66%	4	6074.25	PHYLAXISINC-AS-AP Phylaxis Korea, KR
23	213092	23939	0.65%	14	1709.93	MARBLEIS, GB
24	10103	22264	0.61%	12	1855.33	HKBN-AS-AP HK Broadband Network Ltd., HK
25	137409	21757	0.59%	1102	19.74	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
26	43350	21398	0.58%	24	891.58	NFORCE, NL
27	48635	20762	0.57%	21	988.67	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
28	272053	19932	0.54%	1	19932.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
29	205651	19429	0.53%	1	19429.00	CATOFES, CN
30	204210	19375	0.53%	4	4843.75	ZEUSPACKAGINGLTD, IE
31	30058	18924	0.52%	146	129.62	FDCSERVERS, US
32	47331	18081	0.49%	1272	14.21	TTNET, TR
33	214450	17922	0.49%	2	8961.00	OGL-AS, DE
34	45271	17739	0.48%	1250	14.19	VIL-AS-AP Vodafone Idea Ltd, IN
35	5416	16908	0.46%	1042	16.23	Internet Service Provider, BH
36	8386	16596	0.45%	20	829.80	KOCNET, TR
37	61573	16578	0.45%	13	1275.23	Ip Telecom, BR
38	206672	16280	0.44%	65	250.46	LOGISPIN-AS, AT
39	2018	14989	0.41%	14	1070.64	TENET-1, ZA
40	210564	14968	0.41%	1	14968.00	SWANTZTER-AS, SE
41	62610	14210	0.39%	79	179.87	ZEN-DPS, US
42	13335	14034	0.38%	3133	4.48	CLOUDFLARENET, US
43	139341	13804	0.38%	182	75.85	ACE-AS-AP ACE, SG
44	149500	13566	0.37%	4	3391.50	SR-AS-AP Shane Renshaw, HK
45	203664	13213	0.36%	1	13213.00	LANXING-AS, CN
46	210100	13172	0.36%	23	572.70	SQ5WEP Network. ASN used for homelab, research, education, and networking projects., PL
47	264525	13152	0.36%	5	2630.40	Coelho Tecnologia, BR
48	11172	12777	0.35%	2231	5.73	Alestra, S. de R.L. de C.V., MX
49	205157	12770	0.35%	5	2554.00	CIDNOC, US
50	21664	12639	0.34%	37	341.59	AMZN-BYOASN, US
Total		2039118	55.56%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	272053	19932.0	0.54%	1	19932	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
2	205651	19429.0	0.53%	1	19429	CATOFES, CN
3	212691	16923.5	0.92%	2	33847	ARONSTRECKER-AS, DE
4	210564	14968.0	0.41%	1	14968	SWANTZTER-AS, SE
5	203664	13213.0	0.36%	1	13213	LANXING-AS, CN
6	214450	8961.0	0.49%	2	17922	OGL-AS, DE
7	211894	8293.9	1.81%	8	66351	UNGLEICH-PLACE18, CH
8	264525	6576.0	0.36%	5	13152	Coelho Tecnologia, BR
9	26445	6458.0	0.18%	1	6458	OWL, US
10	268487	6458.0	0.18%	5	6458	PRISMA TELECOMUNICACOES LTDA. EPP, BR
11	199553	6377.0	1.04%	6	38262	UNGLEICH-PLACE5, CH
12	151810	6074.2	0.66%	4	24297	PHYLAXISINC-AS-AP Phylaxis Korea, KR
13	328327	5667.0	0.77%	6	28335	ASAP-AS, ZA
14	151650	5151.0	0.14%	1	5151	SWITCHFIBER-AS-AP Switch Fiber, PH
15	271944	5071.0	0.14%	1	5071	AUDIBEL TELECOMUNICACIONES S.A., AR
16	20915	4936.0	0.13%	1	4936	HUNDRED-PERCENT-IT, GB
17	204210	4843.8	0.53%	4	19375	ZEUSPACKAGINGLTD, IE
18	141145	4680.0	0.13%	1	4680	GIGANET-AS-ID PT Giga Digital Nusantara, ID
19	399916	4533.0	0.12%	1	4533	PACKETSTREAM-NAM, US
20	138535	4152.0	0.34%	3	12456	FURDEVS-AS-AP Wu Qi, CN
21	209898	4126.5	0.22%	2	8253	UNGLEICH-UNGLEICH-UPSTREAM, CH
22	136873	4096.5	0.89%	8	32772	MEGADATA-AS-ID MEGADATA-ISP, ID
23	198090	3895.0	0.11%	1	3895	ASLIBRA, IT
24	203168	3874.0	0.11%	1	3874	AOSUGI-AS, GB
25	30083	3835.0	0.31%	3	11505	AS-30083-US-VELIA-NET, DE
26	210796	3518.5	0.19%	2	7037	BJOERN-SCHLEYER Bjoern Schleyer, DE
27	211645	3440.0	0.09%	1	3440	SPG, DE
28	149500	3391.5	0.37%	4	13566	SR-AS-AP Shane Renshaw, HK
29	396509	3123.4	0.94%	13	34357	LETSCLOUD, US
30	153997	3039.0	0.17%	2	6078	PROJECTELIV-AS-AP PROJECT ELIV, KR
31	204508	3016.6	1.40%	17	51283	MLGT, IT
32	22690	2954.0	0.08%	1	2954	AxiomNET-AS, RW
33	21351	2858.9	1.32%	17	48602	CANALPLUSTELECOM, GP
34	199235	2844.0	0.08%	1	2844	MIKROHALO-HU-AS, HU
35	139311	2776.5	0.15%	2	5553	STELLAIT-AS-AP Stella IT, KR
36	262901	2756.5	0.15%	2	5513	Vcnet Provedora de Internet Ltda., BR
37	199678	2720.0	0.07%	1	2720	AS-6RW-, RU
38	28458	2651.0	0.14%	2	5302	IENTC S DE RL DE CV, MX
39	53147	2639.0	0.14%	2	5278	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
40	274816	2606.0	0.07%	1	2606	CONECTA NET LTDA, BR
41	205157	2554.0	0.35%	5	12770	CIDNOC, US
42	394106	2527.0	0.14%	2	5054	BEIDEAL, US
43	271466	2525.9	0.69%	10	25259	UC Telecom Ltda, BR
44	44212	2454.0	0.27%	4	9816	ADELPHINET1-AS, IE
45	40138	2350.8	2.43%	38	89330	MDNET, US
46	328631	2334.0	0.06%	1	2334	BallitoISP, ZA
47	262448	2266.9	0.68%	11	24936	DIALHOST INTERNET EIRELI, BR
48	199689	2204.0	0.06%	1	2204	JOSHA-PRIOR Netralex BYOIP, NL
49	28598	2151.8	0.82%	14	30125	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
50	208927	2135.0	0.06%
Total		260362.7	22.34%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a02:1391:5100::/40	48573	1.22%	21351 -- CANALPLUSTELECOM, GP
2	2804:248:100::/40	30109	0.76%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
3	2001:678:114::/48	20279	0.51%	212691 -- ARONSTRECKER-AS, DE
4	2803:5d10::/32	19932	0.50%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
5	2a0d:2904::/44	19429	0.49%	205651 -- CATOFES, CN
6	2a0c:b641:302::/47	19370	0.49%	204210 -- ZEUSPACKAGINGLTD, IE
7	2001:67c:20fc::/48	14969	0.38%	210564 -- SWANTZTER-AS, SE
8	2a0e:8f02:f05e::/48	13568	0.34%	212691 -- ARONSTRECKER-AS, DE
9	2a0e:aa07:e044::/48	13214	0.33%	203664 -- LANXING-AS, CN
10	2804:20fc:2000::/36	13148	0.33%	264525 -- Coelho Tecnologia, BR
11	2406:840:e620::/48	12249	0.31%	138535 -- FURDEVS-AS-AP Wu Qi, CN
12	2605:de00:bb::/48	11503	0.29%	30083 -- AS-30083-US-VELIA-NET, DE
13	240d:c010:165::/48	11418	0.29%	139341 -- ACE-AS-AP ACE, SG
14	2a05:4140:304::/48	11276	0.28%	204508 -- MLGT, IT
15	2a05:4140:333::/48	11158	0.28%	204508 -- MLGT, IT
16	2a05:4140:380::/42	11091	0.28%	204508 -- MLGT, IT
17	2a05:4140:316::/48	11057	0.28%	204508 -- MLGT, IT
18	2c0f:c00:3000::/36	9599	0.24%	328327 -- ASAP-AS, ZA
19	2a0a:e5c1:517::/48	9571	0.24%	199553 -- UNGLEICH-PLACE5, CH
20	2a0a:e5c0:45::/48	9533	0.24%	199553 -- UNGLEICH-PLACE5, CH
21	2a0a:e5c0:16::/48	9531	0.24%	199553 -- UNGLEICH-PLACE5, CH
22	2a0a:5480:4::/48	9452	0.24%	211894 -- UNGLEICH-PLACE18, CH
23	2a0a:5480:1::/48	9451	0.24%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:5::/48	9447	0.24%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:1ac::/48	9445	0.24%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480::/48	9442	0.24%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:3::/48	9429	0.24%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480:2::/48	9415	0.24%	211894 -- UNGLEICH-PLACE18, CH
29	2c0f:c00:200::/40	9379	0.24%	328327 -- ASAP-AS, ZA
30	2c0f:c00:100::/40	9355	0.24%	328327 -- ASAP-AS, ZA
31	2a0a:e5c0:42::/48	9227	0.23%	199553 -- UNGLEICH-PLACE5, CH
32	2001:678:658::/48	9075	0.23%	214450 -- OGL-AS, DE
33	2a0e:b107:19cb::/48	8847	0.22%	214450 -- OGL-AS, DE
34	2a0a:e5c0:76::/48	8252	0.21%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
35	2600:6c7f:9370::/44	7278	0.18%	19115 -- CHARTER-19115-DC, US
36	2a0f:9400:7370::/48	7137	0.18%	213092 -- MARBLEIS, GB
37	2402:be0::/34	7107	0.18%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
38	2a0f:9400:737d::/48	6909	0.17%	213092 -- MARBLEIS, GB
39	2a13:aac4:1000::/36	6670	0.17%	204508 -- MLGT, IT
40	2a0a:6040:b40::/48	6611	0.17%	200329 -- HYPERTOAST-AS, US
41	2804:b44:a000::/36	6562	0.17%	262448 -- DIALHOST INTERNET EIRELI, BR
42	2605:9cc0:c06::/48	6553	0.17%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
43	2804:7bf8::/34	6521	0.16%	271466 -- UC Telecom Ltda, BR
44	2804:51f8::/32	6459	0.16%	268487 -- PRISMA TELECOMUNICACOES LTDA. EPP, BR
45	2402:be0:fff0::/46	6458	0.16%	26445 -- OWL, US
46	2804:7bf8:4000::/34	6451	0.16%	271466 -- UC Telecom Ltda, BR
47	2804:b44:1000::/36	6434	0.16%	262448 -- DIALHOST INTERNET EIRELI, BR
48	2a0d:2a00:1::/48	6382	0.16%	205157 -- CIDNOC, US
49	2a0d:2a00:2::/48	6382	0.16%	205157 -- CIDNOC, US
50	2804:7bf8:8000::/34	6378	0.16%	271466 -- UC Telecom Ltda, BR
Total		557085	14.04%

14 Day BGP Update Statistics Profile: 4-January-2026 00:00 - 18-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16527905
Number of Prefix Changes:	19426351
Number of Prefix Updates:	16527905
Number of Prefix Withdrawals:	2898446
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	13.66
Average Prefix Updates per second:	16.06
Peak BGP Update Message Rate per second:	9120	(06:13:50 Thu, 15-Jan-2026)
Peak Prefix Update Rate per second:	9120	(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:	3670644	(0.22 of recv'd updates)
Number of RIB Prefix Withdrawals:	299538	(0.10 of recv'd withdrawals)
Peak RIB Update Rate per second:	8524	(06:13:50 Thu, 15-Jan-2026)
Peak RIB Withdrawal Rate per second:	2963	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	254169
Updated Prefix Count:	246628
Stable Prefix Count:	7541
Seen Origin AS Count:	36114
Updated Origin AS Count:	35854
Stable Origin AS Count:	260
Seen Unique Path Count:	177279
Updated Path Count:	140460
Stable Path Count:	36819

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