The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 12 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	553333	12.79%	3977	139.13	VIETEL-AS-AP Viettel Group, VN
2	39891	276351	6.39%	2058	134.28	ALJAWWALSTC-AS, SA
3	202256	153447	3.55%	770	199.28	LAWLIETNET, CN
4	199340	117583	2.72%	3806	30.89	HONG-GUANWAN, HK
5	18403	106451	2.46%	3324	32.02	FPT-AS-AP FPT Telecom Company, VN
6	28126	92136	2.13%	23	4005.91	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
7	40138	86160	1.99%	38	2267.37	MDNET, US
8	16509	86136	1.99%	5357	16.08	AMAZON-02, US
9	24158	83369	1.93%	506	164.76	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
10	211894	66938	1.55%	8	8367.25	UNGLEICH-PLACE18, CH
11	28649	64961	1.50%	77	843.65	Desktop Sigmanet Comunicacao Multimidia SA, BR
12	204508	52861	1.22%	17	3109.47	MLGT, IT
13	34600	49189	1.14%	1	49189.00	AS6GNET, PL
14	21351	47138	1.09%	17	2772.82	CANALPLUSTELECOM, GP
15	38841	38759	0.90%	38	1019.97	KBRO-AS-TW kbro CO. Ltd., TW
16	199553	38490	0.89%	6	6415.00	UNGLEICH-PLACE5, CH
17	396509	34373	0.79%	13	2644.08	LETSCLOUD, US
18	207432	34052	0.79%	546	62.37	CORESTREAM, US
19	43350	31644	0.73%	25	1265.76	NFORCE, NL
20	206672	31425	0.73%	65	483.46	LOGISPIN-AS, AT
21	28598	28700	0.66%	14	2050.00	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
22	205651	26698	0.62%	1	26698.00	CATOFES, CN
23	213092	26600	0.62%	14	1900.00	MARBLEIS, GB
24	12252	25509	0.59%	458	55.70	America Movil Peru S.A.C., PE
25	262448	24297	0.56%	11	2208.82	DIALHOST INTERNET EIRELI, BR
26	24164	23298	0.54%	12	1941.50	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
27	48635	23274	0.54%	21	1108.29	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
28	62610	23270	0.54%	79	294.56	ZEN-DPS, US
29	328327	23051	0.53%	6	3841.83	ASAP-AS, ZA
30	139341	22628	0.52%	179	126.41	ACE-AS-AP ACE, SG
31	47331	22490	0.52%	1264	17.79	TTNET, TR
32	30058	22290	0.52%	146	152.67	FDCSERVERS, US
33	38266	22110	0.51%	1384	15.98	VIL-AS-AP Vodafone Idea Ltd, IN
34	263262	22109	0.51%	19	1163.63	MOV TELECOM LTDA, BR
35	10103	21577	0.50%	12	1798.08	HKBN-AS-AP HK Broadband Network Ltd., HK
36	136873	21410	0.50%	8	2676.25	MEGADATA-AS-ID MEGADATA-ISP, ID
37	212691	21021	0.49%	2	10510.50	ARONSTRECKER-AS, DE
38	203664	20358	0.47%	1	20358.00	LANXING-AS, CN
39	39900	19524	0.45%	3	6508.00	GOODTEC, LV
40	204210	19417	0.45%	4	4854.25	ZEUSPACKAGINGLTD, IE
41	61573	18769	0.43%	13	1443.77	Ip Telecom, BR
42	264525	18733	0.43%	5	3746.60	Coelho Tecnologia, BR
43	149500	17984	0.42%	4	4496.00	SR-AS-AP Shane Renshaw, HK
44	214450	17931	0.41%	2	8965.50	OGL-AS, DE
45	274743	17654	0.41%	7	2522.00	FASTWEB TELECOMUNICACOES, BR
46	137409	17008	0.39%	1103	15.42	GSLNETWORKS-AS-AP GSL Networks Pty LTD, AU
47	2018	16725	0.39%	14	1194.64	TENET-1, ZA
48	8386	15383	0.36%	20	769.15	KOCNET, TR
49	151810	15267	0.35%	4	3816.75	PHYLAXISINC-AS-AP Phylaxis Korea, KR
50	31673	15257	0.35%	11	1387.00	UNISERVER-AS, NL
Total		2675138	61.86%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	49189.0	1.14%	1	49189	AS6GNET, PL
2	205651	26698.0	0.62%	1	26698	CATOFES, CN
3	21351	23569.0	1.09%	17	47138	CANALPLUSTELECOM, GP
4	203664	20358.0	0.47%	1	20358	LANXING-AS, CN
5	204210	19417.0	0.45%	4	19417	ZEUSPACKAGINGLTD, IE
6	210564	15157.0	0.35%	1	15157	SWANTZTER-AS, SE
7	209898	14640.0	0.34%	2	14640	UNGLEICH-UNGLEICH-UPSTREAM, CH
8	30083	10964.0	0.25%	3	10964	AS-30083-US-VELIA-NET, DE
9	212691	10510.5	0.49%	2	21021	ARONSTRECKER-AS, DE
10	264525	9366.5	0.43%	5	18733	Coelho Tecnologia, BR
11	214450	8965.5	0.41%	2	17931	OGL-AS, DE
12	211894	8367.2	1.55%	8	66938	UNGLEICH-PLACE18, CH
13	328631	7208.0	0.17%	1	7208	BallitoISP, ZA
14	28458	6825.5	0.32%	2	13651	IENTC S DE RL DE CV, MX
15	271944	6624.0	0.15%	1	6624	AUDIBEL TELECOMUNICACIONES S.A., AR
16	39900	6508.0	0.45%	3	19524	GOODTEC, LV
17	199553	6415.0	0.89%	6	38490	UNGLEICH-PLACE5, CH
18	272053	6293.0	0.15%	1	6293	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
19	199678	6003.0	0.14%	1	6003	AS-6RW-, RU
20	6535	5934.0	0.27%	8	11868	Telmex Servicios Empresariales S.A., CL
21	213527	5917.0	0.14%	5	5917	IT-ADJUTOR IT-adjutor, DE
22	208948	5724.0	0.13%	3	5724	RECYCLED-CLOUD-AS, CH
23	268487	5184.0	0.12%	5	5184	PRISMA TELECOMUNICACOES LTDA. EPP, BR
24	20915	4779.0	0.11%	1	4779	HUNDRED-PERCENT-IT, GB
25	61580	4677.0	0.11%	5	4677	Nucleo de Inf. e Coord. do Ponto BR - NIC., BR
26	328327	4610.2	0.53%	6	23051	ASAP-AS, ZA
27	28126	4606.8	2.13%	23	92136	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
28	149500	4496.0	0.42%	4	17984	SR-AS-AP Shane Renshaw, HK
29	138535	4363.7	0.30%	3	13091	FURDEVS-AS-AP Wu Qi, CN
30	151650	4287.0	0.10%	1	4287	SWITCHFIBER-AS-AP Switch Fiber, PH
31	198090	3925.0	0.09%	1	3925	ASLIBRA, IT
32	265063	3895.0	0.09%	1	3895	NEX INTERNET, BR
33	21570	3884.0	0.09%	5	3884	ACI-1, CA
34	151810	3816.8	0.35%	4	15267	PHYLAXISINC-AS-AP Phylaxis Korea, KR
35	266911	3778.0	0.26%	3	11334	VicNet Telecom, BR
36	204508	3775.8	1.22%	17	52861	MLGT, IT
37	269647	3769.0	0.09%	7	3769	FROHLICH E FERREIRA LTDA ME, BR
38	22690	3715.0	0.09%	1	3715	AxiomNET-AS, RW
39	210796	3556.0	0.16%	2	7112	BJOERN-SCHLEYER Bjoern Schleyer, DE
40	211645	3474.0	0.08%	1	3474	SPG, DE
41	396509	3437.3	0.79%	13	34373	LETSCLOUD, US
42	6871	3284.0	0.08%	3	3284	PLUSNET UK Internet Service Provider, GB
43	199235	2886.0	0.07%	1	2886	MIKROHALO-HU-AS, HU
44	53147	2696.0	0.12%	2	5392	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
45	40138	2692.5	1.99%	38	86160	MDNET, US
46	136873	2676.2	0.50%	8	21410	MEGADATA-AS-ID MEGADATA-ISP, ID
47	262901	2668.0	0.12%	2	5336	Vcnet Provedora de Internet Ltda., BR
48	9671	2617.0	0.12%	2	5234	TRADEVAN-AS-AP Trade-Van Informaiton Services Co., TW
49	214160	2554.0	0.06%	2	2554	SHREE, GB
50	274743	2522.0	0.41%
Total		383278.5	21.00%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	49189	1.06%	34600 -- AS6GNET, PL
2	2a02:1391:5100::/40	47134	1.02%	21351 -- CANALPLUSTELECOM, GP
3	2804:248:100::/40	28671	0.62%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
4	2a0d:2904::/44	26698	0.58%	205651 -- CATOFES, CN
5	2a0e:aa07:e044::/48	20359	0.44%	203664 -- LANXING-AS, CN
6	2a0c:b641:302::/47	19418	0.42%	204210 -- ZEUSPACKAGINGLTD, IE
7	240d:c010:165::/48	18876	0.41%	139341 -- ACE-AS-AP ACE, SG
8	2804:20fc:2000::/36	18728	0.40%	264525 -- Coelho Tecnologia, BR
9	2001:67c:20fc::/48	15158	0.33%	210564 -- SWANTZTER-AS, SE
10	2a0a:e5c0:76::/48	14641	0.32%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
11	2806:202::/32	13643	0.29%	28458 -- IENTC S DE RL DE CV, MX
12	2406:840:e620::/48	13029	0.28%	138535 -- FURDEVS-AS-AP Wu Qi, CN
13	2a05:4140:304::/48	11329	0.24%	204508 -- MLGT, IT
14	2a05:4140:316::/48	11321	0.24%	204508 -- MLGT, IT
15	2a05:4140:380::/42	11295	0.24%	204508 -- MLGT, IT
16	2a05:4140:333::/48	11227	0.24%	204508 -- MLGT, IT
17	2a0e:8f02:f05e::/48	11055	0.24%	212691 -- ARONSTRECKER-AS, DE
18	2605:de00:bb::/48	10964	0.24%	30083 -- AS-30083-US-VELIA-NET, DE
19	2001:678:114::/48	9966	0.22%	212691 -- ARONSTRECKER-AS, DE
20	2a0a:e5c1:517::/48	9627	0.21%	199553 -- UNGLEICH-PLACE5, CH
21	2a0a:e5c0:16::/48	9607	0.21%	199553 -- UNGLEICH-PLACE5, CH
22	2a0a:e5c0:45::/48	9603	0.21%	199553 -- UNGLEICH-PLACE5, CH
23	2a0a:5480:5::/48	9526	0.21%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:1ac::/48	9522	0.21%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:4::/48	9510	0.21%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:1::/48	9507	0.21%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480::/48	9506	0.21%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480:2::/48	9496	0.21%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480:3::/48	9491	0.21%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:e5c0:42::/48	9071	0.20%	199553 -- UNGLEICH-PLACE5, CH
31	2001:678:658::/48	9036	0.20%	214450 -- OGL-AS, DE
32	2a0e:b107:19cb::/48	8895	0.19%	214450 -- OGL-AS, DE
33	2c0f:c00:3000::/36	8038	0.17%	328327 -- ASAP-AS, ZA
34	2a14:3f87:9800::/38	7913	0.17%	64289 -- MACARNE, US
35	2c0f:c00:100::/40	7814	0.17%	328327 -- ASAP-AS, ZA
36	2a0a:6040:b40::/48	7686	0.17%	200329 -- HYPERTOAST-AS, US
37	2a13:aac4:1000::/36	7672	0.17%	204508 -- MLGT, IT
38	2a03:90c0:7a0::/44	7351	0.16%	59437 -- NORTHERNDATA, DE
39	2600:6c7f:9370::/44	7220	0.16%	19115 -- CHARTER-19115-DC, US
40	2c0f:e8a8::/32	7209	0.16%	328631 -- BallitoISP, ZA
41	2c0f:c00:200::/40	7197	0.16%	328327 -- ASAP-AS, ZA
42	2001:1260:103::/48	7138	0.15%	13591 -- Mexico Red de Telecomunicaciones, S. de R.L. de C.V., MX
43	2800:540:2010::/44	7043	0.15%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
44	2a14:7580:ed58::/46	6942	0.15%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
45	2a14:7580:ee0b::/48	6861	0.15%	215956 -- MYIP-AS MyIP.be ~ AS215956, BE
46	2803:6610::/32	6624	0.14%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
47	2a0b:88c0:48::/48	6517	0.14%	39900 -- GOODTEC, LV
48	2a12:b2c0:6::/48	6507	0.14%	39900 -- GOODTEC, LV
49	2a13:6c40::/29	6500	0.14%	39900 -- GOODTEC, LV
50	2602:f520::/36	6404	0.14%	151810 -- PHYLAXISINC-AS-AP Phylaxis Korea, KR
Total		613734	13.31%

14 Day BGP Update Statistics Profile: 28-December-2025 00:00 - 11-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	16529180
Number of Prefix Changes:	19512577
Number of Prefix Updates:	16529180
Number of Prefix Withdrawals:	2983397
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	13.66
Average Prefix Updates per second:	16.13
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:	4324812	(0.26 of recv'd updates)
Number of RIB Prefix Withdrawals:	304549	(0.10 of recv'd withdrawals)
Peak RIB Update Rate per second:	3357	(15:10:08 Fri, 9-Jan-2026)
Peak RIB Withdrawal Rate per second:	2963	(15:59:44 Fri, 9-Jan-2026)
Seen Prefix Count:	250195
Updated Prefix Count:	121601
Stable Prefix Count:	128594
Seen Origin AS Count:	36021
Updated Origin AS Count:	19514
Stable Origin AS Count:	16507
Seen Unique Path Count:	146771
Updated Path Count:	109425
Stable Path Count:	37346

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