The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 13 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	547315	13.21%	3977	137.62	VIETEL-AS-AP Viettel Group, VN
2	39891	256431	6.19%	2058	124.60	ALJAWWALSTC-AS, SA
3	202256	140515	3.39%	770	182.49	LAWLIETNET, CN
4	199340	115508	2.79%	3797	30.42	HONG-GUANWAN, HK
5	18403	106449	2.57%	3324	32.02	FPT-AS-AP FPT Telecom Company, VN
6	28126	94763	2.29%	23	4120.13	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	16509	86473	2.09%	5357	16.14	AMAZON-02, US
8	40138	85866	2.07%	38	2259.63	MDNET, US
9	211894	67238	1.62%	8	8404.75	UNGLEICH-PLACE18, CH
10	28649	66366	1.60%	77	861.90	Desktop Sigmanet Comunicacao Multimidia SA, BR
11	10103	59078	1.43%	12	4923.17	HKBN-AS-AP HK Broadband Network Ltd., HK
12	204508	52825	1.27%	17	3107.35	MLGT, IT
13	21351	47374	1.14%	17	2786.71	CANALPLUSTELECOM, GP
14	38841	40733	0.98%	38	1071.92	KBRO-AS-TW kbro CO. Ltd., TW
15	199553	38780	0.94%	6	6463.33	UNGLEICH-PLACE5, CH
16	396509	34242	0.83%	13	2634.00	LETSCLOUD, US
17	28598	33218	0.80%	14	2372.71	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
18	43350	31263	0.75%	25	1250.52	NFORCE, NL
19	206672	30546	0.74%	65	469.94	LOGISPIN-AS, AT
20	213092	29176	0.70%	14	2084.00	MARBLEIS, GB
21	205651	26827	0.65%	1	26827.00	CATOFES, CN
22	12252	25673	0.62%	458	56.05	America Movil Peru S.A.C., PE
23	328327	24826	0.60%	6	4137.67	ASAP-AS, ZA
24	262448	24103	0.58%	11	2191.18	DIALHOST INTERNET EIRELI, BR
25	48635	23296	0.56%	21	1109.33	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
26	47331	22821	0.55%	1272	17.94	TTNET, TR
27	62610	22795	0.55%	79	288.54	ZEN-DPS, US
28	139341	22775	0.55%	179	127.23	ACE-AS-AP ACE, SG
29	136873	22366	0.54%	8	2795.75	MEGADATA-AS-ID MEGADATA-ISP, ID
30	30058	22107	0.53%	146	151.42	FDCSERVERS, US
31	38266	21643	0.52%	1384	15.64	VIL-AS-AP Vodafone Idea Ltd, IN
32	212691	21098	0.51%	2	10549.00	ARONSTRECKER-AS, DE
33	24164	19849	0.48%	12	1654.08	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
34	204210	19438	0.47%	4	4859.50	ZEUSPACKAGINGLTD, IE
35	61573	18694	0.45%	13	1438.00	Ip Telecom, BR
36	203664	18586	0.45%	1	18586.00	LANXING-AS, CN
37	56047	17946	0.43%	731	24.55	CMNET-HUNAN-AP China Mobile communications corporation, CN
38	214450	17711	0.43%	2	8855.50	OGL-AS, DE
39	137409	17526	0.42%	1103	15.89	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
40	263262	17435	0.42%	19	917.63	MOV TELECOM LTDA, BR
41	149500	16644	0.40%	4	4161.00	SR-AS-AP Shane Renshaw, HK
42	271466	16625	0.40%	10	1662.50	UC Telecom Ltda, BR
43	2018	16318	0.39%	14	1165.57	TENET-1, ZA
44	274743	15760	0.38%	7	2251.43	FASTWEB TELECOMUNICACOES, BR
45	210564	15016	0.36%	1	15016.00	SWANTZTER-AS, SE
46	31673	15005	0.36%	11	1364.09	UNISERVER-AS, NL
47	23679	14956	0.36%	26	575.23	NUSANET-AS-ID PT. Media Antar Nusa, ID
48	8386	14817	0.36%	20	740.85	KOCNET, TR
49	215956	14680	0.35%	35	419.43	MYIP-AS MyIP.be ~ AS215956, BE
50	151810	14506	0.35%	4	3626.50	PHYLAXISINC-AS-AP Phylaxis Korea, KR
Total		2546001	61.42%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	205651	26827.0	0.65%	1	26827	CATOFES, CN
2	204210	19438.0	0.47%	4	19438	ZEUSPACKAGINGLTD, IE
3	203664	18586.0	0.45%	1	18586	LANXING-AS, CN
4	210564	15016.0	0.36%	1	15016	SWANTZTER-AS, SE
5	209898	13557.0	0.33%	2	13557	UNGLEICH-UNGLEICH-UPSTREAM, CH
6	30083	11034.0	0.27%	3	11034	AS-30083-US-VELIA-NET, DE
7	151650	10914.0	0.26%	1	10914	SWITCHFIBER-AS-AP Switch Fiber, PH
8	212691	10549.0	0.51%	2	21098	ARONSTRECKER-AS, DE
9	56047	8973.0	0.43%	731	17946	CMNET-HUNAN-AP China Mobile communications corporation, CN
10	214450	8855.5	0.43%	2	17711	OGL-AS, DE
11	211894	8404.8	1.62%	8	67238	UNGLEICH-PLACE18, CH
12	272053	8256.0	0.20%	1	8256	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
13	6871	7262.0	0.18%	3	7262	PLUSNET UK Internet Service Provider, GB
14	271944	6655.0	0.16%	1	6655	AUDIBEL TELECOMUNICACIONES S.A., AR
15	199553	6463.3	0.94%	6	38780	UNGLEICH-PLACE5, CH
16	328631	6438.0	0.16%	1	6438	BallitoISP, ZA
17	28458	6270.0	0.30%	2	12540	IENTC S DE RL DE CV, MX
18	22690	6201.0	0.15%	1	6201	AxiomNET-AS, RW
19	199678	6053.0	0.15%	1	6053	AS-6RW-, RU
20	213527	5917.0	0.14%	5	5917	IT-ADJUTOR IT-adjutor, DE
21	208948	5799.0	0.14%	3	5799	RECYCLED-CLOUD-AS, CH
22	328327	4965.2	0.60%	6	24826	ASAP-AS, ZA
23	10103	4923.2	1.43%	12	59078	HKBN-AS-AP HK Broadband Network Ltd., HK
24	61580	4866.0	0.12%	5	4866	Nucleo de Inf. e Coord. do Ponto BR - NIC., BR
25	6535	4826.5	0.23%	8	9653	Telmex Servicios Empresariales S.A., CL
26	20915	4795.0	0.12%	1	4795	HUNDRED-PERCENT-IT, GB
27	28126	4738.1	2.29%	23	94763	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
28	21351	4737.4	1.14%	17	47374	CANALPLUSTELECOM, GP
29	138535	4347.0	0.31%	3	13041	FURDEVS-AS-AP Wu Qi, CN
30	268487	4233.0	0.10%	5	4233	PRISMA TELECOMUNICACOES LTDA. EPP, BR
31	149500	4161.0	0.40%	4	16644	SR-AS-AP Shane Renshaw, HK
32	21570	3988.0	0.10%	5	3988	ACI-1, CA
33	198090	3922.0	0.09%	1	3922	ASLIBRA, IT
34	204508	3773.2	1.27%	17	52825	MLGT, IT
35	151810	3626.5	0.35%	4	14506	PHYLAXISINC-AS-AP Phylaxis Korea, KR
36	265063	3574.0	0.09%	1	3574	NEX INTERNET, BR
37	211645	3435.0	0.08%	1	3435	SPG, DE
38	396509	3424.2	0.83%	13	34242	LETSCLOUD, US
39	266911	3421.3	0.25%	3	10264	VicNet Telecom, BR
40	269647	3348.0	0.08%	7	3348	FROHLICH E FERREIRA LTDA ME, BR
41	199235	2921.0	0.07%	1	2921	MIKROHALO-HU-AS, HU
42	210796	2877.0	0.14%	2	5754	BJOERN-SCHLEYER Bjoern Schleyer, DE
43	39900	2796.3	0.20%	3	8389	GOODTEC, LV
44	136873	2795.8	0.54%	8	22366	MEGADATA-AS-ID MEGADATA-ISP, ID
45	53147	2759.5	0.13%	2	5519	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
46	262901	2751.0	0.13%	2	5502	Vcnet Provedora de Internet Ltda., BR
47	40138	2602.0	2.07%	38	85866	MDNET, US
48	214160	2597.0	0.06%	2	2597	SHREE, GB
49	28598	2372.7	0.80%	14	33218	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
50	44212	2308.0	0.22%
Total		323353.5	22.54%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a02:1391:5100::/40	47362	1.06%	21351 -- CANALPLUSTELECOM, GP
2	2804:248:100::/40	33187	0.75%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
3	2a0d:2904::/44	26827	0.60%	205651 -- CATOFES, CN
4	2a0c:b641:302::/47	19438	0.44%	204210 -- ZEUSPACKAGINGLTD, IE
5	240d:c010:165::/48	19036	0.43%	139341 -- ACE-AS-AP ACE, SG
6	2a0e:aa07:e044::/48	18586	0.42%	203664 -- LANXING-AS, CN
7	2001:67c:20fc::/48	15017	0.34%	210564 -- SWANTZTER-AS, SE
8	2a0a:e5c0:76::/48	13557	0.30%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
9	2600:6c7f:9370::/44	13485	0.30%	19115 -- CHARTER-19115-DC, US
10	2406:840:e620::/48	12980	0.29%	138535 -- FURDEVS-AS-AP Wu Qi, CN
11	2806:202::/32	12532	0.28%	28458 -- IENTC S DE RL DE CV, MX
12	2607:74c0:100::/44	12050	0.27%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
13	2607:74c0:140::/44	11994	0.27%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
14	2607:74c0:120::/44	11934	0.27%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
15	2607:74c0:110::/44	11693	0.26%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
16	2607:74c0:130::/44	11377	0.26%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
17	2a05:4140:304::/48	11308	0.25%	204508 -- MLGT, IT
18	2a05:4140:380::/42	11293	0.25%	204508 -- MLGT, IT
19	2a05:4140:316::/48	11291	0.25%	204508 -- MLGT, IT
20	2a05:4140:333::/48	11248	0.25%	204508 -- MLGT, IT
21	2605:de00:bb::/48	11034	0.25%	30083 -- AS-30083-US-VELIA-NET, DE
22	2401:2260::/32	10914	0.25%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
23	2001:678:114::/48	10551	0.24%	212691 -- ARONSTRECKER-AS, DE
24	2a0e:8f02:f05e::/48	10547	0.24%	212691 -- ARONSTRECKER-AS, DE
25	2a0a:e5c1:517::/48	9669	0.22%	199553 -- UNGLEICH-PLACE5, CH
26	2a0a:e5c0:45::/48	9651	0.22%	199553 -- UNGLEICH-PLACE5, CH
27	2a0a:e5c0:16::/48	9648	0.22%	199553 -- UNGLEICH-PLACE5, CH
28	2a0a:5480:5::/48	9575	0.22%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480:1ac::/48	9570	0.22%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480:4::/48	9547	0.21%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:5480:1::/48	9545	0.21%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480::/48	9542	0.21%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:2::/48	9539	0.21%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480:3::/48	9531	0.21%	211894 -- UNGLEICH-PLACE18, CH
35	2409:8750:ffd3::/48	9525	0.21%	56047 -- CMNET-HUNAN-AP China Mobile communications corporation, CN
36	2a0a:e5c0:42::/48	9182	0.21%	199553 -- UNGLEICH-PLACE5, CH
37	2001:678:658::/48	8922	0.20%	214450 -- OGL-AS, DE
38	2a0e:b107:19cb::/48	8789	0.20%	214450 -- OGL-AS, DE
39	2c0f:c00:3000::/36	8632	0.19%	328327 -- ASAP-AS, ZA
40	2409:8750:ffd2::/48	8421	0.19%	56047 -- CMNET-HUNAN-AP China Mobile communications corporation, CN
41	2c0f:c00:100::/40	8397	0.19%	328327 -- ASAP-AS, ZA
42	2803:5d10::/32	8256	0.19%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
43	2a0a:6040:b40::/48	7840	0.18%	200329 -- HYPERTOAST-AS, US
44	2c0f:c00:200::/40	7795	0.18%	328327 -- ASAP-AS, ZA
45	2a13:aac4:1000::/36	7668	0.17%	204508 -- MLGT, IT
46	2a03:90c0:7a0::/44	7432	0.17%	59437 -- NORTHERNDATA, DE
47	2a02:16c8::/35	7262	0.16%	6871 -- PLUSNET UK Internet Service Provider, GB
48	2a14:7580:ed58::/46	6974	0.16%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
49	2a14:7580:ee0b::/48	6897	0.16%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
50	2a14:3f87:9800::/38	6710	0.15%	64289 -- MACARNE, US
Total		603760	13.58%

14 Day BGP Update Statistics Profile: 29-December-2025 00:00 - 12-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16353309
Number of Prefix Changes:	19328827
Number of Prefix Updates:	16353309
Number of Prefix Withdrawals:	2975518
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	13.52
Average Prefix Updates per second:	15.98
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:	4055	(12:10:34 Sat, 10-Jan-2026, )
Number of RIB Prefix Updates:	4144405	(0.25 of recv'd updates)
Number of RIB Prefix Withdrawals:	303261	(0.10 of recv'd withdrawals)
Peak RIB Update Rate per second:	3362	(15:10:08 Fri, 9-Jan-2026)
Peak RIB Withdrawal Rate per second:	2963	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	250279
Updated Prefix Count:	123103
Stable Prefix Count:	127176
Seen Origin AS Count:	36012
Updated Origin AS Count:	19632
Stable Origin AS Count:	16380
Seen Unique Path Count:	146891
Updated Path Count:	109506
Stable Path Count:	37385

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