The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 7 January 2026 01:15 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	24158	812533	14.25%	504	1612.17	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
2	34600	715355	12.55%	1	715355.00	AS6GNET, PL
3	7552	590640	10.36%	3977	148.51	VIETEL-AS-AP Viettel Group, VN
4	202256	212445	3.73%	770	275.90	LAWLIETNET, CN
5	207432	133985	2.35%	546	245.39	CORESTREAM, US
6	199340	128148	2.25%	3814	33.60	HONG-GUANWAN, HK
7	28126	103132	1.81%	26	3966.62	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
8	38841	97113	1.70%	38	2555.61	KBRO-AS-TW kbro CO. Ltd., TW
9	40138	83840	1.47%	38	2206.32	MDNET, US
10	39891	82252	1.44%	2058	39.97	ALJAWWALSTC-AS, SA
11	16509	81085	1.42%	5324	15.23	AMAZON-02, US
12	28649	68294	1.20%	77	886.94	Desktop Sigmanet Comunicacao Multimidia SA, BR
13	211894	67102	1.18%	8	8387.75	UNGLEICH-PLACE18, CH
14	21351	46580	0.82%	17	2740.00	CANALPLUSTELECOM, GP
15	24164	45337	0.80%	12	3778.08	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
16	263262	41218	0.72%	19	2169.37	MOV TELECOM LTDA, BR
17	199553	36388	0.64%	6	6064.67	UNGLEICH-PLACE5, CH
18	396509	34352	0.60%	12	2862.67	LETSCLOUD, US
19	43350	29892	0.52%	24	1245.50	NFORCE, NL
20	45271	29102	0.51%	1250	23.28	VIL-AS-AP Vodafone Idea Ltd, IN
21	206672	28730	0.50%	65	442.00	LOGISPIN-AS, AT
22	38266	27180	0.48%	1378	19.72	VIL-AS-AP Vodafone Idea Ltd, IN
23	205651	26565	0.47%	1	26565.00	CATOFES, CN
24	9924	25801	0.45%	11	2345.55	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
25	28598	25626	0.45%	14	1830.43	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
26	149500	24253	0.43%	4	6063.25	SR-AS-AP Shane Renshaw, HK
27	9674	24005	0.42%	38	631.71	FET-TW Far EastTone Telecommunication Co., Ltd., TW
28	274743	23826	0.42%	7	3403.71	FASTWEB TELECOMUNICACOES, BR
29	213092	23656	0.41%	14	1689.71	MARBLEIS, GB
30	48635	22412	0.39%	21	1067.24	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
31	203664	21754	0.38%	1	21754.00	LANXING-AS, CN
32	262448	21654	0.38%	11	1968.55	DIALHOST INTERNET EIRELI, BR
33	30058	21522	0.38%	145	148.43	FDCSERVERS, US
34	12252	21471	0.38%	456	47.09	America Movil Peru S.A.C., PE
35	139341	21278	0.37%	179	118.87	ACE-AS-AP ACE, SG
36	10103	19863	0.35%	12	1655.25	HKBN-AS-AP HK Broadband Network Ltd., HK
37	204210	19512	0.34%	4	4878.00	ZEUSPACKAGINGLTD, IE
38	214450	18163	0.32%	2	9081.50	OGL-AS, DE
39	61573	17762	0.31%	13	1366.31	Ip Telecom, BR
40	209898	16548	0.29%	2	8274.00	UNGLEICH-UNGLEICH-UPSTREAM, CH
41	2018	16376	0.29%	14	1169.71	TENET-1, ZA
42	134094	16265	0.29%	6	2710.83	SERVERFIELD-AS Serverfield Co., Ltd., TW
43	8386	15189	0.27%	20	759.45	KOCNET, TR
44	24173	15041	0.26%	262	57.41	NETNAM-AS-AP Netnam Company, VN
45	28458	15032	0.26%	2	7516.00	IENTC S DE RL DE CV, MX
46	210564	14719	0.26%	1	14719.00	SWANTZTER-AS, SE
47	328327	14630	0.26%	6	2438.33	ASAP-AS, ZA
48	31673	14249	0.25%	11	1295.36	UNISERVER-AS, NL
49	215956	14033	0.25%	37	379.27	MYIP-AS MyIP.be ~ AS215956, BE
50	151650	13322	0.23%	1	13322.00	SWITCHFIBER-AS-AP Switch Fiber, PH
Total		4039230	70.86%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	715355.0	12.55%	1	715355	AS6GNET, PL
2	205651	26565.0	0.47%	1	26565	CATOFES, CN
3	21351	23290.0	0.82%	17	46580	CANALPLUSTELECOM, GP
4	203664	21754.0	0.38%	1	21754	LANXING-AS, CN
5	204210	19512.0	0.34%	4	19512	ZEUSPACKAGINGLTD, IE
6	210564	14719.0	0.26%	1	14719	SWANTZTER-AS, SE
7	151650	13322.0	0.23%	1	13322	SWITCHFIBER-AS-AP Switch Fiber, PH
8	30083	10001.0	0.18%	3	10001	AS-30083-US-VELIA-NET, DE
9	328631	9730.0	0.17%	1	9730	BallitoISP, ZA
10	214450	9081.5	0.32%	2	18163	OGL-AS, DE
11	211894	8387.8	1.18%	8	67102	UNGLEICH-PLACE18, CH
12	209898	8274.0	0.29%	2	16548	UNGLEICH-UNGLEICH-UPSTREAM, CH
13	28458	7516.0	0.26%	2	15032	IENTC S DE RL DE CV, MX
14	271944	6683.0	0.12%	1	6683	AUDIBEL TELECOMUNICACIONES S.A., AR
15	199553	6064.7	0.64%	6	36388	UNGLEICH-PLACE5, CH
16	149500	6063.2	0.43%	4	24253	SR-AS-AP Shane Renshaw, HK
17	212691	6002.5	0.21%	2	12005	ARONSTRECKER-AS, DE
18	208948	5535.0	0.10%	3	5535	RECYCLED-CLOUD-AS, CH
19	53147	5531.0	0.10%	2	5531	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
20	262448	5413.5	0.38%	11	21654	DIALHOST INTERNET EIRELI, BR
21	61580	5317.0	0.09%	5	5317	Nucleo de Inf. e Coord. do Ponto BR - NIC., BR
22	265063	5298.0	0.09%	1	5298	NEX INTERNET, BR
23	9671	5179.5	0.18%	2	10359	TRADEVAN-AS-AP Trade-Van Informaiton Services Co., TW
24	269647	5050.0	0.09%	7	5050	FROHLICH E FERREIRA LTDA ME, BR
25	264525	4951.0	0.17%	5	9902	Coelho Tecnologia, BR
26	131143	4783.0	0.08%	1	4783	CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
27	6535	4781.0	0.17%	8	9562	Telmex Servicios Empresariales S.A., CL
28	17420	4749.0	0.08%	1	4749	ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
29	268487	4737.0	0.08%	5	4737	PRISMA TELECOMUNICACOES LTDA. EPP, BR
30	20915	4594.0	0.08%	1	4594	HUNDRED-PERCENT-IT, GB
31	28126	4484.0	1.81%	26	103132	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
32	18429	4376.3	0.23%	3	13129	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
33	138535	4373.3	0.23%	3	13120	FURDEVS-AS-AP Wu Qi, CN
34	205157	4369.3	0.23%	5	13108	CIDNOC, US
35	24165	4264.3	0.22%	3	12793	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
36	8987	4164.5	0.15%	98	8329	AWS-GOVCLOUD AWS-GOVCLOUD, IE
37	24164	4121.5	0.80%	12	45337	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
38	134094	4066.2	0.29%	6	16265	SERVERFIELD-AS Serverfield Co., Ltd., TW
39	10103	3972.6	0.35%	12	19863	HKBN-AS-AP HK Broadband Network Ltd., HK
40	198090	3927.0	0.07%	1	3927	ASLIBRA, IT
41	147039	3836.0	0.07%	1	3836	CYPREA-AS-AP Cyprea Private Limited, MV
42	396509	3816.9	0.60%	12	34352	LETSCLOUD, US
43	22690	3716.0	0.07%	1	3716	AxiomNET-AS, RW
44	9924	3685.9	0.45%	11	25801	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
45	21570	3674.0	0.06%	5	3674	ACI-1, CA
46	199678	3638.0	0.06%	1	3638	AS-6RW-, RU
47	268644	3597.0	0.06%	1	3597	Eletrochip Informatica e Telecomunicacoes Ltda., BR
48	211645	3418.0	0.06%	1	3418	SPG, DE
49	274743	3403.7	0.42%	7	23826	FASTWEB TELECOMUNICACOES, BR
50	24163	3117.7	0.16%
Total		1056261.9	26.93%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	715355	12.02%	34600 -- AS6GNET, PL
2	2a02:1391:5100::/40	46576	0.78%	21351 -- CANALPLUSTELECOM, GP
3	2a0d:2904::/44	26565	0.45%	205651 -- CATOFES, CN
4	2804:248:100::/40	25592	0.43%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
5	2a0e:aa07:e044::/48	21755	0.37%	203664 -- LANXING-AS, CN
6	2a0c:b641:302::/47	19513	0.33%	204210 -- ZEUSPACKAGINGLTD, IE
7	240d:c010:165::/48	18153	0.31%	139341 -- ACE-AS-AP ACE, SG
8	2a0a:e5c0:76::/48	16547	0.28%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
9	2806:202::/32	14984	0.25%	28458 -- IENTC S DE RL DE CV, MX
10	2001:67c:20fc::/48	14720	0.25%	210564 -- SWANTZTER-AS, SE
11	2401:2260::/32	13322	0.22%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
12	2406:840:e620::/48	13068	0.22%	138535 -- FURDEVS-AS-AP Wu Qi, CN
13	2a14:3f87:9800::/38	12775	0.21%	64289 -- MACARNE, US
14	2605:de00:bb::/48	10001	0.17%	30083 -- AS-30083-US-VELIA-NET, DE
15	2804:20fc:2000::/36	9899	0.17%	264525 -- Coelho Tecnologia, BR
16	2c0f:e8a8::/32	9730	0.16%	328631 -- BallitoISP, ZA
17	2a03:90c0:7a0::/44	9724	0.16%	59437 -- NORTHERNDATA, DE
18	2a0a:e5c1:517::/48	9546	0.16%	199553 -- UNGLEICH-PLACE5, CH
19	2a0a:e5c0:45::/48	9514	0.16%	199553 -- UNGLEICH-PLACE5, CH
20	2a0a:e5c0:16::/48	9511	0.16%	199553 -- UNGLEICH-PLACE5, CH
21	2a0a:5480:5::/48	9430	0.16%	211894 -- UNGLEICH-PLACE18, CH
22	2a0a:5480:1ac::/48	9429	0.16%	211894 -- UNGLEICH-PLACE18, CH
23	2a0a:5480:4::/48	9427	0.16%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:1::/48	9426	0.16%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480::/48	9422	0.16%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:3::/48	9408	0.16%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:2::/48	9407	0.16%	211894 -- UNGLEICH-PLACE18, CH
28	2001:678:658::/48	9113	0.15%	214450 -- OGL-AS, DE
29	2600:6c7f:9370::/44	9059	0.15%	19115 -- CHARTER-19115-DC, US
30	2a0e:b107:19cb::/48	9050	0.15%	214450 -- OGL-AS, DE
31	2a0a:e5c0:42::/48	7467	0.13%	199553 -- UNGLEICH-PLACE5, CH
32	2a02:16c8::/35	7158	0.12%	6871 -- PLUSNET UK Internet Service Provider, GB
33	2400:58a0:1003::/48	7120	0.12%	149500 -- SR-AS-AP Shane Renshaw, HK
34	2a14:7580:ed58::/46	6837	0.11%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
35	2a14:7580:ee0b::/48	6777	0.11%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
36	2001:1260:103::/48	6722	0.11%	13591 -- Mexico Red de Telecomunicaciones, S. de R.L. de C.V., MX
37	2803:6610::/32	6683	0.11%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
38	2a0d:2a00:2::/48	6554	0.11%	205157 -- CIDNOC, US
39	2a0d:2a00:1::/48	6553	0.11%	205157 -- CIDNOC, US
40	2402:e580:74b8::/48	6367	0.11%	40138 -- MDNET, US
41	2a0a:6040:b40::/48	6278	0.11%	200329 -- HYPERTOAST-AS, US
42	2604:980:e028::/48	6256	0.11%	62610 -- ZEN-DPS, US
43	2604:980:e029::/48	6256	0.11%	62610 -- ZEN-DPS, US
44	2001:678:114::/48	6251	0.11%	212691 -- ARONSTRECKER-AS, DE
45	2001:4541:9000::/36	5991	0.10%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
46	2605:9cc0:c06::/48	5964	0.10%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
47	2800:540:2000::/44	5869	0.10%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
48	2a0e:8f02:f05e::/48	5754	0.10%	212691 -- ARONSTRECKER-AS, DE
49	2605:9cc0:c0e::/48	5721	0.10%	21664 -- AMZN-BYOASN, US 8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
50	2400:58a0:1000::/48	5711	0.10%	149500 -- SR-AS-AP Shane Renshaw, HK
Total		1248310	21.01%

14 Day BGP Update Statistics Profile: 23-December-2025 00:00 - 6-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	18624813
Number of Prefix Changes:	21556902
Number of Prefix Updates:	18624813
Number of Prefix Withdrawals:	2932089
Average Prefixes per BGP Update:	1.16
Average BGP Update Messages per second:	15.40
Average Prefix Updates per second:	17.82
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:	844	(08:41:44 Mon, 29-Dec-2025, )
Number of RIB Prefix Updates:	5700759	(0.31 of recv'd updates)
Number of RIB Prefix Withdrawals:	249644	(0.09 of recv'd withdrawals)
Peak RIB Update Rate per second:	3311	(03:10:41 Sat, 27-Dec-2025)
Peak RIB Withdrawal Rate per second:	530	(03:23:39 Fri, 26-Dec-2025)
Seen Prefix Count:	248440
Updated Prefix Count:	109084
Stable Prefix Count:	139356
Seen Origin AS Count:	35948
Updated Origin AS Count:	17939
Stable Origin AS Count:	18009
Seen Unique Path Count:	135097
Updated Path Count:	96827
Stable Path Count:	38270

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