The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 9 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	665450	14.51%	3977	167.32	VIETEL-AS-AP Viettel Group, VN
2	24158	319765	6.97%	504	634.45	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
3	202256	193553	4.22%	770	251.37	LAWLIETNET, CN
4	199340	124318	2.71%	3812	32.61	HONG-GUANWAN, HK
5	34600	122913	2.68%	1	122913.00	AS6GNET, PL
6	28126	102049	2.22%	23	4436.91	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	207432	94916	2.07%	546	173.84	CORESTREAM, US
8	16509	84163	1.83%	5352	15.73	AMAZON-02, US
9	40138	83029	1.81%	38	2184.97	MDNET, US
10	211894	66741	1.46%	8	8342.62	UNGLEICH-PLACE18, CH
11	38841	65374	1.43%	38	1720.37	KBRO-AS-TW kbro CO. Ltd., TW
12	28649	64508	1.41%	77	837.77	Desktop Sigmanet Comunicacao Multimidia SA, BR
13	21351	46787	1.02%	17	2752.18	CANALPLUSTELECOM, GP
14	39891	45961	1.00%	2058	22.33	ALJAWWALSTC-AS, SA
15	199553	37897	0.83%	6	6316.17	UNGLEICH-PLACE5, CH
16	24164	35078	0.76%	12	2923.17	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
17	396509	34624	0.75%	13	2663.38	LETSCLOUD, US
18	263262	33714	0.74%	19	1774.42	MOV TELECOM LTDA, BR
19	206672	32417	0.71%	65	498.72	LOGISPIN-AS, AT
20	43350	31296	0.68%	25	1251.84	NFORCE, NL
21	39900	28464	0.62%	3	9488.00	GOODTEC, LV
22	28598	26921	0.59%	14	1922.93	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
23	205651	26455	0.58%	1	26455.00	CATOFES, CN
24	62610	25652	0.56%	79	324.71	ZEN-DPS, US
25	12252	24932	0.54%	457	54.56	America Movil Peru S.A.C., PE
26	203664	24515	0.53%	1	24515.00	LANXING-AS, CN
27	213092	24358	0.53%	14	1739.86	MARBLEIS, GB
28	45271	23219	0.51%	1250	18.58	VIL-AS-AP Vodafone Idea Ltd, IN
29	48635	22886	0.50%	21	1089.81	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
30	274743	22588	0.49%	7	3226.86	FASTWEB TELECOMUNICACOES, BR
31	262448	22518	0.49%	11	2047.09	DIALHOST INTERNET EIRELI, BR
32	139341	22347	0.49%	179	124.84	ACE-AS-AP ACE, SG
33	30058	22002	0.48%	145	151.74	FDCSERVERS, US
34	264525	21864	0.48%	5	4372.80	Coelho Tecnologia, BR
35	10103	20634	0.45%	12	1719.50	HKBN-AS-AP HK Broadband Network Ltd., HK
36	204210	19753	0.43%	4	4938.25	ZEUSPACKAGINGLTD, IE
37	9924	19627	0.43%	11	1784.27	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
38	61573	18347	0.40%	13	1411.31	Ip Telecom, BR
39	214450	18085	0.39%	2	9042.50	OGL-AS, DE
40	212691	17108	0.37%	2	8554.00	ARONSTRECKER-AS, DE
41	2018	16956	0.37%	14	1211.14	TENET-1, ZA
42	209898	16726	0.36%	2	8363.00	UNGLEICH-UNGLEICH-UPSTREAM, CH
43	24173	16597	0.36%	262	63.35	NETNAM-AS-AP Netnam Company, VN
44	38266	16355	0.36%	1384	11.82	VIL-AS-AP Vodafone Idea Ltd, IN
45	149500	16321	0.36%	4	4080.25	SR-AS-AP Shane Renshaw, HK
46	328327	16286	0.36%	6	2714.33	ASAP-AS, ZA
47	8386	15029	0.33%	20	751.45	KOCNET, TR
48	28458	14976	0.33%	2	7488.00	IENTC S DE RL DE CV, MX
49	31673	14972	0.33%	11	1361.09	UNISERVER-AS, NL
50	210564	14847	0.32%	1	14847.00	SWANTZTER-AS, SE
Total		2895893	63.15%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	122913.0	2.68%	1	122913	AS6GNET, PL
2	205651	26455.0	0.58%	1	26455	CATOFES, CN
3	203664	24515.0	0.53%	1	24515	LANXING-AS, CN
4	21351	23393.5	1.02%	17	46787	CANALPLUSTELECOM, GP
5	204210	19753.0	0.43%	4	19753	ZEUSPACKAGINGLTD, IE
6	209898	16726.0	0.36%	2	16726	UNGLEICH-UNGLEICH-UPSTREAM, CH
7	210564	14847.0	0.32%	1	14847	SWANTZTER-AS, SE
8	151650	13188.0	0.29%	1	13188	SWITCHFIBER-AS-AP Switch Fiber, PH
9	264525	10932.0	0.48%	5	21864	Coelho Tecnologia, BR
10	30083	10655.0	0.23%	3	10655	AS-30083-US-VELIA-NET, DE
11	39900	9488.0	0.62%	3	28464	GOODTEC, LV
12	328631	9292.0	0.20%	1	9292	BallitoISP, ZA
13	214450	9042.5	0.39%	2	18085	OGL-AS, DE
14	212691	8554.0	0.37%	2	17108	ARONSTRECKER-AS, DE
15	211894	8342.6	1.46%	8	66741	UNGLEICH-PLACE18, CH
16	28458	7488.0	0.33%	2	14976	IENTC S DE RL DE CV, MX
17	6871	7373.0	0.16%	3	7373	PLUSNET UK Internet Service Provider, GB
18	271944	6754.0	0.15%	1	6754	AUDIBEL TELECOMUNICACIONES S.A., AR
19	199553	6316.2	0.83%	6	37897	UNGLEICH-PLACE5, CH
20	199678	5767.0	0.13%	1	5767	AS-6RW-, RU
21	208948	5529.0	0.12%	3	5529	RECYCLED-CLOUD-AS, CH
22	53147	5453.0	0.12%	2	5453	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
23	61580	5207.0	0.11%	5	5207	Nucleo de Inf. e Coord. do Ponto BR - NIC., BR
24	28126	5102.4	2.22%	23	102049	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
25	265063	4998.0	0.11%	1	4998	NEX INTERNET, BR
26	266911	4830.0	0.32%	3	14490	VicNet Telecom, BR
27	6535	4791.5	0.21%	8	9583	Telmex Servicios Empresariales S.A., CL
28	20915	4751.0	0.10%	1	4751	HUNDRED-PERCENT-IT, GB
29	269647	4739.0	0.10%	7	4739	FROHLICH E FERREIRA LTDA ME, BR
30	138535	4382.7	0.29%	3	13148	FURDEVS-AS-AP Wu Qi, CN
31	268487	4260.0	0.09%	5	4260	PRISMA TELECOMUNICACOES LTDA. EPP, BR
32	10103	4126.8	0.45%	12	20634	HKBN-AS-AP HK Broadband Network Ltd., HK
33	149500	4080.2	0.36%	4	16321	SR-AS-AP Shane Renshaw, HK
34	9671	4053.5	0.18%	2	8107	TRADEVAN-AS-AP Trade-Van Informaiton Services Co., TW
35	198090	3924.0	0.09%	1	3924	ASLIBRA, IT
36	131143	3790.0	0.08%	1	3790	CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
37	262448	3753.0	0.49%	11	22518	DIALHOST INTERNET EIRELI, BR
38	22690	3716.0	0.08%	1	3716	AxiomNET-AS, RW
39	21570	3650.0	0.08%	5	3650	ACI-1, CA
40	17420	3645.0	0.08%	1	3645	ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
41	396509	3462.4	0.75%	13	34624	LETSCLOUD, US
42	211645	3430.0	0.07%	1	3430	SPG, DE
43	18429	3418.7	0.22%	3	10256	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
44	268644	3387.0	0.07%	1	3387	Eletrochip Informatica e Telecomunicacoes Ltda., BR
45	24165	3320.3	0.22%	3	9961	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
46	328327	3257.2	0.36%	6	16286	ASAP-AS, ZA
47	274743	3226.9	0.49%	7	22588	FASTWEB TELECOMUNICACOES, BR
48	24164	3188.9	0.76%	12	35078	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
49	134094	3096.8	0.27%	6	12387	SERVERFIELD-AS Serverfield Co., Ltd., TW
50	214160	2986.0	0.07%
Total		483351.1	20.52%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	122913	2.54%	34600 -- AS6GNET, PL
2	2a02:1391:5100::/40	46784	0.97%	21351 -- CANALPLUSTELECOM, GP
3	2804:248:100::/40	26887	0.56%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
4	2a0d:2904::/44	26455	0.55%	205651 -- CATOFES, CN
5	2a0e:aa07:e044::/48	24516	0.51%	203664 -- LANXING-AS, CN
6	2804:20fc:2000::/36	21859	0.45%	264525 -- Coelho Tecnologia, BR
7	2a0c:b641:302::/47	19754	0.41%	204210 -- ZEUSPACKAGINGLTD, IE
8	240d:c010:165::/48	18814	0.39%	139341 -- ACE-AS-AP ACE, SG
9	2a0a:e5c0:76::/48	16726	0.35%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
10	2806:202::/32	14928	0.31%	28458 -- IENTC S DE RL DE CV, MX
11	2001:67c:20fc::/48	14848	0.31%	210564 -- SWANTZTER-AS, SE
12	2401:2260::/32	13188	0.27%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
13	2406:840:e620::/48	13075	0.27%	138535 -- FURDEVS-AS-AP Wu Qi, CN
14	2a14:3f87:9800::/38	10961	0.23%	64289 -- MACARNE, US
15	2605:de00:bb::/48	10655	0.22%	30083 -- AS-30083-US-VELIA-NET, DE
16	2a0a:e5c1:517::/48	9592	0.20%	199553 -- UNGLEICH-PLACE5, CH
17	2a0a:e5c0:16::/48	9563	0.20%	199553 -- UNGLEICH-PLACE5, CH
18	2a0a:e5c0:45::/48	9560	0.20%	199553 -- UNGLEICH-PLACE5, CH
19	2a0b:88c0:48::/48	9492	0.20%	39900 -- GOODTEC, LV
20	2a12:b2c0:6::/48	9487	0.20%	39900 -- GOODTEC, LV
21	2a13:6c40::/29	9485	0.20%	39900 -- GOODTEC, LV
22	2a0a:5480:5::/48	9478	0.20%	211894 -- UNGLEICH-PLACE18, CH
23	2a0a:5480:1ac::/48	9470	0.20%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:4::/48	9466	0.20%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:1::/48	9461	0.20%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480::/48	9460	0.20%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:2::/48	9451	0.20%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480:3::/48	9445	0.20%	211894 -- UNGLEICH-PLACE18, CH
29	2c0f:e8a8::/32	9292	0.19%	328631 -- BallitoISP, ZA
30	2001:678:658::/48	9106	0.19%	214450 -- OGL-AS, DE
31	2a0e:b107:19cb::/48	8979	0.19%	214450 -- OGL-AS, DE
32	2600:6c7f:9370::/44	8837	0.18%	19115 -- CHARTER-19115-DC, US
33	2a03:90c0:7a0::/44	8827	0.18%	59437 -- NORTHERNDATA, DE
34	2a0a:e5c0:42::/48	8674	0.18%	199553 -- UNGLEICH-PLACE5, CH
35	2001:678:114::/48	8581	0.18%	212691 -- ARONSTRECKER-AS, DE
36	2a0e:8f02:f05e::/48	8527	0.18%	212691 -- ARONSTRECKER-AS, DE
37	2a13:aac4:1000::/36	7719	0.16%	204508 -- MLGT, IT
38	2a02:16c8::/35	7373	0.15%	6871 -- PLUSNET UK Internet Service Provider, GB
39	2001:1260:103::/48	7244	0.15%	13591 -- Mexico Red de Telecomunicaciones, S. de R.L. de C.V., MX
40	2a14:7580:ed58::/46	6881	0.14%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
41	2a14:7580:ee0b::/48	6817	0.14%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
42	2803:6610::/32	6754	0.14%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
43	2a0a:6040:b40::/48	6561	0.14%	200329 -- HYPERTOAST-AS, US
44	2a0f:1cc5:110::/44	6376	0.13%	203309 -- CHOCO-AS, CN
45	2604:980:e028::/48	6285	0.13%	62610 -- ZEN-DPS, US
46	2604:980:e026::/48	6285	0.13%	62610 -- ZEN-DPS, US
47	2604:980:e029::/48	6285	0.13%	62610 -- ZEN-DPS, US
48	2604:980:e027::/48	6283	0.13%	62610 -- ZEN-DPS, US
49	2402:e580:74b8::/48	6194	0.13%	40138 -- MDNET, US
50	2402:be0:8000::/34	6092	0.13%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
Total		689745	14.34%

14 Day BGP Update Statistics Profile: 25-December-2025 00:00 - 8-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	17568368
Number of Prefix Changes:	20522936
Number of Prefix Updates:	17568368
Number of Prefix Withdrawals:	2954568
Average Prefixes per BGP Update:	1.17
Average BGP Update Messages per second:	14.52
Average Prefix Updates per second:	16.97
Peak BGP Update Message Rate per second:	7021	(19:13:44 Thu, 1-Jan-2026)
Peak Prefix Update Rate per second:	7021	(19:13:44 Thu, 1-Jan-2026)
Peak Prefix Withdraw Rate per second:	1699	(09:46:38 Thu, 8-Jan-2026, )
Number of RIB Prefix Updates:	4586806	(0.26 of recv'd updates)
Number of RIB Prefix Withdrawals:	254250	(0.09 of recv'd withdrawals)
Peak RIB Update Rate per second:	3318	(03:10:41 Sat, 27-Dec-2025)
Peak RIB Withdrawal Rate per second:	560	(06:13:23 Sat, 27-Dec-2025)
Seen Prefix Count:	249337
Updated Prefix Count:	117418
Stable Prefix Count:	131919
Seen Origin AS Count:	35987
Updated Origin AS Count:	18951
Stable Origin AS Count:	17036
Seen Unique Path Count:	142319
Updated Path Count:	104462
Stable Path Count:	37857

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