The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 5 January 2026 01:16 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	24158	1588849	23.03%	504	3152.48	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
2	34600	1029840	14.93%	1	1029840.00	AS6GNET, PL
3	7552	578736	8.39%	3977	145.52	VIETEL-AS-AP Viettel Group, VN
4	202256	209939	3.04%	770	272.65	LAWLIETNET, CN
5	207432	163464	2.37%	546	299.38	CORESTREAM, US
6	38841	141231	2.05%	38	3716.61	KBRO-AS-TW kbro CO. Ltd., TW
7	199340	126517	1.83%	3815	33.16	HONG-GUANWAN, HK
8	28126	105058	1.52%	26	4040.69	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
9	39891	103822	1.50%	2058	50.45	ALJAWWALSTC-AS, SA
10	40138	85628	1.24%	38	2253.37	MDNET, US
11	16509	83043	1.20%	5320	15.61	AMAZON-02, US
12	28649	69810	1.01%	77	906.62	Desktop Sigmanet Comunicacao Multimidia SA, BR
13	211894	67289	0.98%	8	8411.12	UNGLEICH-PLACE18, CH
14	24164	60137	0.87%	12	5011.42	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
15	10103	54747	0.79%	12	4562.25	HKBN-AS-AP HK Broadband Network Ltd., HK
16	263262	48239	0.70%	21	2297.10	MOV TELECOM LTDA, BR
17	21351	46233	0.67%	17	2719.59	CANALPLUSTELECOM, GP
18	199553	34935	0.51%	6	5822.50	UNGLEICH-PLACE5, CH
19	396509	34528	0.50%	12	2877.33	LETSCLOUD, US
20	9924	33860	0.49%	11	3078.18	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
21	45271	31569	0.46%	1250	25.26	VIL-AS-AP Vodafone Idea Ltd, IN
22	39900	28726	0.42%	3	9575.33	GOODTEC, LV
23	9674	27131	0.39%	38	713.97	FET-TW Far EastTone Telecommunication Co., Ltd., TW
24	205651	26595	0.39%	1	26595.00	CATOFES, CN
25	28598	25963	0.38%	14	1854.50	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
26	274743	24591	0.36%	7	3513.00	FASTWEB TELECOMUNICACOES, BR
27	38266	24481	0.35%	1378	17.77	VIL-AS-AP Vodafone Idea Ltd, IN
28	149500	24151	0.35%	4	6037.75	SR-AS-AP Shane Renshaw, HK
29	28458	23170	0.34%	2	11585.00	IENTC S DE RL DE CV, MX
30	48635	22342	0.32%	21	1063.90	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
31	262448	22114	0.32%	11	2010.36	DIALHOST INTERNET EIRELI, BR
32	203664	21600	0.31%	1	21600.00	LANXING-AS, CN
33	134094	21547	0.31%	6	3591.17	SERVERFIELD-AS Serverfield Co., Ltd., TW
34	213092	21467	0.31%	13	1651.31	MARBLEIS, GB
35	8386	21452	0.31%	20	1072.60	KOCNET, TR
36	30058	21451	0.31%	143	150.01	FDCSERVERS, US
37	139341	21262	0.31%	179	118.78	ACE-AS-AP ACE, SG
38	204210	19646	0.28%	4	4911.50	ZEUSPACKAGINGLTD, IE
39	206672	19275	0.28%	65	296.54	LOGISPIN-AS, AT
40	12252	18994	0.28%	456	41.65	America Movil Peru S.A.C., PE
41	214450	18369	0.27%	2	9184.50	OGL-AS, DE
42	61573	17660	0.26%	13	1358.46	Ip Telecom, BR
43	18429	17416	0.25%	3	5805.33	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
44	24165	17055	0.25%	3	5685.00	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
45	2018	16536	0.24%	14	1181.14	TENET-1, ZA
46	209898	16477	0.24%	2	8238.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
47	204508	16459	0.24%	18	914.39	MLGT, IT
48	205157	15498	0.22%	5	3099.60	CIDNOC, US
49	24173	14767	0.21%	262	56.36	NETNAM-AS-AP Netnam Company, VN
50	210564	14591	0.21%	1	14591.00	SWANTZTER-AS, SE
Total		5298260	76.79%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	1029840.0	14.93%	1	1029840	AS6GNET, PL
2	205651	26595.0	0.39%	1	26595	CATOFES, CN
3	203664	21600.0	0.31%	1	21600	LANXING-AS, CN
4	204210	19646.0	0.28%	4	19646	ZEUSPACKAGINGLTD, IE
5	21351	15411.0	0.67%	17	46233	CANALPLUSTELECOM, GP
6	210564	14591.0	0.21%	1	14591	SWANTZTER-AS, SE
7	151650	13249.0	0.19%	1	13249	SWITCHFIBER-AS-AP Switch Fiber, PH
8	28598	12981.5	0.38%	14	25963	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
9	28458	11585.0	0.34%	2	23170	IENTC S DE RL DE CV, MX
10	30083	9872.0	0.14%	3	9872	AS-30083-US-VELIA-NET, DE
11	39900	9575.3	0.42%	3	28726	GOODTEC, LV
12	328631	9568.0	0.14%	1	9568	BallitoISP, ZA
13	214450	9184.5	0.27%	2	18369	OGL-AS, DE
14	211894	8411.1	0.98%	8	67289	UNGLEICH-PLACE18, CH
15	209898	8238.5	0.24%	2	16477	UNGLEICH-UNGLEICH-UPSTREAM, CH
16	271944	6697.0	0.10%	1	6697	AUDIBEL TELECOMUNICACIONES S.A., AR
17	6535	6660.5	0.19%	8	13321	Telmex Servicios Empresariales S.A., CL
18	131143	6473.0	0.09%	1	6473	CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
19	17420	6337.0	0.09%	1	6337	ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
20	149500	6037.8	0.35%	4	24151	SR-AS-AP Shane Renshaw, HK
21	199553	5822.5	0.51%	6	34935	UNGLEICH-PLACE5, CH
22	18429	5805.3	0.25%	3	17416	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
23	24165	5685.0	0.25%	3	17055	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
24	199678	5658.0	0.08%	1	5658	AS-6RW-, RU
25	208948	5529.0	0.08%	3	5529	RECYCLED-CLOUD-AS, CH
26	262448	5528.5	0.32%	11	22114	DIALHOST INTERNET EIRELI, BR
27	24164	5467.0	0.87%	12	60137	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
28	265063	5239.0	0.08%	1	5239	NEX INTERNET, BR
29	205157	5166.0	0.22%	5	15498	CIDNOC, US
30	264525	5164.0	0.15%	5	10328	Coelho Tecnologia, BR
31	10103	4977.0	0.79%	12	54747	HKBN-AS-AP HK Broadband Network Ltd., HK
32	269647	4921.0	0.07%	7	4921	FROHLICH E FERREIRA LTDA ME, BR
33	9924	4837.1	0.49%	11	33860	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
34	147039	4720.0	0.07%	1	4720	CYPREA-AS-AP Cyprea Private Limited, MV
35	28126	4567.7	1.52%	26	105058	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
36	24163	4531.7	0.20%	3	13595	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
37	20915	4475.0	0.06%	1	4475	HUNDRED-PERCENT-IT, GB
38	138535	4401.7	0.19%	3	13205	FURDEVS-AS-AP Wu Qi, CN
39	268487	4245.0	0.06%	5	4245	PRISMA TELECOMUNICACOES LTDA. EPP, BR
40	271494	4159.0	0.06%	1	4159	Soft Telecom, BR
41	38841	4035.2	2.05%	38	141231	KBRO-AS-TW kbro CO. Ltd., TW
42	198090	3930.0	0.06%	1	3930	ASLIBRA, IT
43	396509	3836.4	0.50%	12	34528	LETSCLOUD, US
44	21570	3626.0	0.05%	5	3626	ACI-1, CA
45	134094	3591.2	0.31%	6	21547	SERVERFIELD-AS Serverfield Co., Ltd., TW
46	151810	3565.8	0.21%	4	14263	PHYLAXISINC-AS-AP Phylaxis Korea, KR
47	274743	3513.0	0.36%	7	24591	FASTWEB TELECOMUNICACOES, BR
48	211645	3482.0	0.05%	1	3482	SPG, DE
49	64289	3423.2	0.20%	12	13693	MACARNE, US
50	9671	3400.0	0.10%
Total		1389855.5	30.92%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	1029840	14.40%	34600 -- AS6GNET, PL
2	2a02:1391:5100::/40	46219	0.65%	21351 -- CANALPLUSTELECOM, GP
3	2a0d:2904::/44	26595	0.37%	205651 -- CATOFES, CN
4	2804:248:100::/40	25943	0.36%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
5	2806:202::/32	23120	0.32%	28458 -- IENTC S DE RL DE CV, MX
6	2a0e:aa07:e044::/48	21600	0.30%	203664 -- LANXING-AS, CN
7	2a0c:b641:302::/47	19647	0.27%	204210 -- ZEUSPACKAGINGLTD, IE
8	240d:c010:165::/48	17848	0.25%	139341 -- ACE-AS-AP ACE, SG
9	2a0a:e5c0:76::/48	16474	0.23%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
10	2001:67c:20fc::/48	14591	0.20%	210564 -- SWANTZTER-AS, SE
11	2a14:3f87:9800::/38	13682	0.19%	64289 -- MACARNE, US
12	2401:2260::/32	13249	0.19%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
13	2406:840:e620::/48	13145	0.18%	138535 -- FURDEVS-AS-AP Wu Qi, CN
14	2600:6c7f:9370::/44	12644	0.18%	19115 -- CHARTER-19115-DC, US
15	2607:74c0:140::/44	11131	0.16%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
16	2607:74c0:100::/44	11119	0.16%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
17	2607:74c0:120::/44	11037	0.15%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
18	2607:74c0:110::/44	10864	0.15%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
19	2607:74c0:130::/44	10590	0.15%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
20	2804:20fc:2000::/36	10327	0.14%	264525 -- Coelho Tecnologia, BR
21	2605:de00:bb::/48	9872	0.14%	30083 -- AS-30083-US-VELIA-NET, DE
22	2a03:90c0:7a0::/44	9797	0.14%	59437 -- NORTHERNDATA, DE
23	2a0b:88c0:48::/48	9580	0.13%	39900 -- GOODTEC, LV
24	2a12:b2c0:6::/48	9574	0.13%	39900 -- GOODTEC, LV
25	2a13:6c40::/29	9572	0.13%	39900 -- GOODTEC, LV
26	2c0f:e8a8::/32	9569	0.13%	328631 -- BallitoISP, ZA
27	2a0a:e5c1:517::/48	9522	0.13%	199553 -- UNGLEICH-PLACE5, CH
28	2a0a:e5c0:45::/48	9485	0.13%	199553 -- UNGLEICH-PLACE5, CH
29	2a0a:e5c0:16::/48	9484	0.13%	199553 -- UNGLEICH-PLACE5, CH
30	2a0a:5480:4::/48	9420	0.13%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:5480:1::/48	9419	0.13%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480::/48	9416	0.13%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:5::/48	9408	0.13%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480:1ac::/48	9404	0.13%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:3::/48	9401	0.13%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:5480:2::/48	9390	0.13%	211894 -- UNGLEICH-PLACE18, CH
37	2a0e:b107:19cb::/48	9223	0.13%	214450 -- OGL-AS, DE
38	2001:678:658::/48	9146	0.13%	214450 -- OGL-AS, DE
39	2001:4541:9000::/36	7945	0.11%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
40	2a13:aac4:1000::/36	7921	0.11%	204508 -- MLGT, IT
41	2a0d:2a00:1::/48	7749	0.11%	205157 -- CIDNOC, US
42	2a0d:2a00:2::/48	7748	0.11%	205157 -- CIDNOC, US
43	2403:82c0::/32	7406	0.10%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
44	2a02:16c8::/35	7288	0.10%	6871 -- PLUSNET UK Internet Service Provider, GB
45	2401:f540:2::/48	7182	0.10%	134094 -- SERVERFIELD-AS Serverfield Co., Ltd., TW
46	2401:f540:7::/48	7180	0.10%	134094 -- SERVERFIELD-AS Serverfield Co., Ltd., TW
47	2401:f540:1::/48	7177	0.10%	134094 -- SERVERFIELD-AS Serverfield Co., Ltd., TW
48	2400:58a0:1003::/48	7109	0.10%	149500 -- SR-AS-AP Shane Renshaw, HK
49	2001:1260:103::/48	6941	0.10%	13591 -- Mexico Red de Telecomunicaciones, S. de R.L. de C.V., MX
50	2800:540:2010::/44	6878	0.10%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
Total		1618871	22.60%

14 Day BGP Update Statistics Profile: 21-December-2025 00:00 - 4-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	20489927
Number of Prefix Changes:	23427852
Number of Prefix Updates:	20489927
Number of Prefix Withdrawals:	2937925
Average Prefixes per BGP Update:	1.14
Average BGP Update Messages per second:	16.94
Average Prefix Updates per second:	19.37
Peak BGP Update Message Rate per second:	7644	(16:02:11 Mon, 22-Dec-2025)
Peak Prefix Update Rate per second:	7644	(16:02:11 Mon, 22-Dec-2025)
Peak Prefix Withdraw Rate per second:	872	(21:39:32 Tue, 23-Dec-2025, )
Number of RIB Prefix Updates:	6899694	(0.34 of recv'd updates)
Number of RIB Prefix Withdrawals:	252779	(0.09 of recv'd withdrawals)
Peak RIB Update Rate per second:	5737	(16:02:10 Mon, 22-Dec-2025)
Peak RIB Withdrawal Rate per second:	758	(21:39:32 Tue, 23-Dec-2025)
Seen Prefix Count:	248471
Updated Prefix Count:	130535
Stable Prefix Count:	117936
Seen Origin AS Count:	35949
Updated Origin AS Count:	22882
Stable Origin AS Count:	13067
Seen Unique Path Count:	149920
Updated Path Count:	111012
Stable Path Count:	38908

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