The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 22 December 2025 01:16 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	24158	1243093	22.36%	504	2466.45	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
2	7552	511361	9.20%	3977	128.58	VIETEL-AS-AP Viettel Group, VN
3	202256	219562	3.95%	857	256.20	LAWLIETNET, CN
4	216193	104069	1.87%	1	104069.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
5	16509	101460	1.83%	5478	18.52	AMAZON-02, US
6	199340	99030	1.78%	4034	24.55	HONG-GUANWAN, HK
7	8386	95241	1.71%	20	4762.05	KOCNET, TR
8	216141	91471	1.65%	1	91471.00	LEATYON-AS, IT
9	40138	86302	1.55%	38	2271.11	MDNET, US
10	28126	76073	1.37%	23	3307.52	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
11	211894	67073	1.21%	8	8384.12	UNGLEICH-PLACE18, CH
12	28649	63548	1.14%	77	825.30	Desktop Sigmanet Comunicacao Multimidia SA, BR
13	38841	63328	1.14%	38	1666.53	KBRO-AS-TW kbro CO. Ltd., TW
14	39891	62854	1.13%	2058	30.54	ALJAWWALSTC-AS, SA
15	204508	54729	0.98%	18	3040.50	MLGT, IT
16	12041	43376	0.78%	228	190.25	AS-AFILIAS1, US
17	21351	43375	0.78%	17	2551.47	CANALPLUSTELECOM, GP
18	10103	43089	0.78%	12	3590.75	HKBN-AS-AP HK Broadband Network Ltd., HK
19	22616	37562	0.68%	39	963.13	ZSCALER-SJC1, US
20	38266	32413	0.58%	1382	23.45	VIL-AS-AP Vodafone Idea Ltd, IN
21	213092	31237	0.56%	12	2603.08	MARBLEIS, GB
22	205651	27716	0.50%	1	27716.00	CATOFES, CN
23	199553	27498	0.49%	6	4583.00	UNGLEICH-PLACE5, CH
24	24164	25385	0.46%	12	2115.42	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
25	28458	24799	0.45%	2	12399.50	IENTC S DE RL DE CV, MX
26	139341	22754	0.41%	175	130.02	ACE-AS-AP ACE, SG
27	203664	21462	0.39%	1	21462.00	LANXING-AS, CN
28	262448	21341	0.38%	20	1067.05	DIALHOST INTERNET EIRELI, BR
29	5416	20762	0.37%	1042	19.93	Internet Service Provider, BH
30	214732	20392	0.37%	3	6797.33	RATATOSKR RATATOSKR, US
31	43350	19817	0.36%	24	825.71	NFORCE, NL
32	28640	19208	0.35%	15	1280.53	VIPWay Telecomunicacoes Ltda, BR
33	204210	18387	0.33%	4	4596.75	ZEUSPACKAGINGLTD, IE
34	17072	18205	0.33%	1413	12.88	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
35	214450	17534	0.32%	2	8767.00	OGL-AS, DE
36	45271	16840	0.30%	1249	13.48	VIL-AS-AP Vodafone Idea Ltd, IN
37	209898	16609	0.30%	2	8304.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
38	24173	16562	0.30%	261	63.46	NETNAM-AS-AP Netnam Company, VN
39	272053	15246	0.27%	1	15246.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
40	58821	15075	0.27%	4	3768.75	IDNIC-LJN-AS-ID PT Lintas Jaringan Nusantara, ID
41	199310	15009	0.27%	16	938.06	QFLINK-AS WolfXun Experimental Research Global Network, CN
42	28598	14652	0.26%	14	1046.57	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
43	39572	14340	0.26%	32	448.12	ADVANCEDHOSTERS-AS, NL
44	210564	14180	0.26%	1	14180.00	SWANTZTER-AS, SE
45	21664	14155	0.25%	39	362.95	AMZN-BYOASN, US
46	36183	14071	0.25%	1644	8.56	AKAMAI-AS, US
47	9924	14021	0.25%	11	1274.64	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
48	12735	13670	0.25%	416	32.86	ASTURKNET, TR
49	9674	13309	0.24%	39	341.26	FET-TW Far EastTone Telecommunication Co., Ltd., TW
50	48635	13001	0.23%	21	619.10	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
Total		3696246	66.50%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	216193	104069.0	1.87%	1	104069	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	216141	91471.0	1.65%	1	91471	LEATYON-AS, IT
3	205651	27716.0	0.50%	1	27716	CATOFES, CN
4	203664	21462.0	0.39%	1	21462	LANXING-AS, CN
5	214732	20392.0	0.37%	3	20392	RATATOSKR RATATOSKR, US
6	272053	15246.0	0.27%	1	15246	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
7	210564	14180.0	0.26%	1	14180	SWANTZTER-AS, SE
8	28458	12399.5	0.45%	2	24799	IENTC S DE RL DE CV, MX
9	44297	9565.0	0.17%	1	9565	ICODIA ICODIA NETWORK INTEGRITY, FR
10	214450	8767.0	0.32%	2	17534	OGL-AS, DE
11	211894	8384.1	1.21%	8	67073	UNGLEICH-PLACE18, CH
12	328631	8370.0	0.15%	1	8370	BallitoISP, ZA
13	209898	8304.5	0.30%	2	16609	UNGLEICH-UNGLEICH-UPSTREAM, CH
14	34600	7592.0	0.14%	1	7592	AS6GNET, PL
15	271944	7034.0	0.13%	1	7034	AUDIBEL TELECOMUNICACIONES S.A., AR
16	204210	6129.0	0.33%	4	18387	ZEUSPACKAGINGLTD, IE
17	52191	5478.0	0.10%	1	5478	LOCALKA-NET-AS , UA
18	6535	4838.0	0.17%	8	9676	Telmex Servicios Empresariales S.A., CL
19	8386	4762.1	1.71%	20	95241	KOCNET, TR
20	20915	4677.0	0.08%	1	4677	HUNDRED-PERCENT-IT, GB
21	199553	4583.0	0.49%	6	27498	UNGLEICH-PLACE5, CH
22	141145	4462.0	0.08%	1	4462	GIGANET-AS-ID PT Giga Digital Nusantara, ID
23	21351	4337.5	0.78%	17	43375	CANALPLUSTELECOM, GP
24	21570	3973.0	0.07%	5	3973	ACI-1, CA
25	198090	3891.0	0.07%	1	3891	ASLIBRA, IT
26	24474	3867.5	0.14%	2	7735	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
27	138535	3801.7	0.21%	3	11405	FURDEVS-AS-AP Wu Qi, CN
28	58821	3768.8	0.27%	4	15075	IDNIC-LJN-AS-ID PT Lintas Jaringan Nusantara, ID
29	26445	3669.0	0.07%	1	3669	OWL, US
30	30362	3594.0	0.06%	1	3594	HPT-ASN, US
31	10103	3590.8	0.78%	12	43089	HKBN-AS-AP HK Broadband Network Ltd., HK
32	203309	3508.5	0.13%	3	7017	CHOCO-AS, CN
33	28126	3457.9	1.37%	23	76073	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
34	211645	3388.0	0.06%	1	3388	SPG, DE
35	30083	3333.0	0.06%	3	3333	AS-30083-US-VELIA-NET, DE
36	210796	3315.5	0.12%	2	6631	BJOERN-SCHLEYER Bjoern Schleyer, DE
37	265314	3250.0	0.06%	1	3250	Toolsoft Tecnologia Ltda, BR
38	394106	3237.3	0.17%	3	9712	BEIDEAL, US
39	204508	3040.5	0.98%	18	54729	MLGT, IT
40	199678	3039.0	0.05%	1	3039	AS-6RW-, RU
41	22616	2889.4	0.68%	39	37562	ZSCALER-SJC1, US
42	262901	2887.5	0.10%	2	5775	Vcnet Provedora de Internet Ltda., BR
43	199235	2805.0	0.05%	1	2805	MIKROHALO-HU-AS, HU
44	17420	2783.0	0.05%	1	2783	ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
45	131143	2725.0	0.05%	1	2725	CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
46	24158	2628.1	22.36%	504	1243093	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
47	213092	2603.1	0.56%	12	31237	MARBLEIS, GB
48	212173	2529.0	0.05%	1	2529	XP, SA
49	214160	2520.0	0.05%	2	2520	SHREE, GB
50	151810	2495.2	0.18%
Total		490809.5	40.72%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a13:1c47:c0d0::/44	104069	1.78%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	2a11:f2c0:ffc7::/48	91471	1.57%	216141 -- LEATYON-AS, IT
3	2a02:1391:5100::/40	43364	0.74%	21351 -- CANALPLUSTELECOM, GP
4	2a03:eec0:3212::/48	37488	0.64%	22616 -- ZSCALER-SJC1, US
5	2a0d:2904::/44	27716	0.47%	205651 -- CATOFES, CN
6	2806:202::/32	24791	0.42%	28458 -- IENTC S DE RL DE CV, MX
7	2a0e:aa07:e044::/48	21462	0.37%	203664 -- LANXING-AS, CN
8	2a14:7c0:5300::/48	20392	0.35%	214732 -- RATATOSKR RATATOSKR, US
9	240d:c010:165::/48	18956	0.32%	139341 -- ACE-AS-AP ACE, SG
10	2a0c:b641:302::/47	18368	0.31%	204210 -- ZEUSPACKAGINGLTD, IE
11	2a0a:e5c0:76::/48	16605	0.28%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2803:5d10::/32	15246	0.26%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
13	2804:248:100::/40	14587	0.25%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
14	2a02:b48:83f1::/48	14314	0.25%	39572 -- ADVANCEDHOSTERS-AS, NL
15	2001:67c:20fc::/48	14180	0.24%	210564 -- SWANTZTER-AS, SE
16	2001:930:108::/48	12790	0.22%	8386 -- KOCNET, TR
17	2001:930:124::/48	12782	0.22%	8386 -- KOCNET, TR
18	2001:930:154::/48	12782	0.22%	8386 -- KOCNET, TR
19	2001:930:126::/48	12781	0.22%	8386 -- KOCNET, TR
20	2001:930:114::/48	12779	0.22%	8386 -- KOCNET, TR
21	2001:930:127::/48	12779	0.22%	8386 -- KOCNET, TR
22	2a05:4140:380::/42	11837	0.20%	204508 -- MLGT, IT
23	2a05:4140:316::/48	11801	0.20%	204508 -- MLGT, IT
24	2a05:4140:304::/48	11733	0.20%	204508 -- MLGT, IT
25	2a05:4140:333::/48	11666	0.20%	204508 -- MLGT, IT
26	2a14:3f87:9800::/38	11426	0.20%	64289 -- MACARNE, US
27	2406:840:e620::/48	11348	0.19%	138535 -- FURDEVS-AS-AP Wu Qi, CN
28	2607:74c0:120::/44	9878	0.17%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
29	2607:74c0:140::/44	9814	0.17%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
30	2607:74c0:130::/44	9698	0.17%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
31	2607:74c0:110::/44	9574	0.16%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
32	2a0b:f8c0::/29	9565	0.16%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
33	2a0a:5480:4::/48	9293	0.16%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480::/48	9291	0.16%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:1::/48	9289	0.16%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:5480:3::/48	9269	0.16%	211894 -- UNGLEICH-PLACE18, CH
37	2a0a:5480:2::/48	9255	0.16%	211894 -- UNGLEICH-PLACE18, CH
38	2a0a:5480:5::/48	9253	0.16%	211894 -- UNGLEICH-PLACE18, CH
39	2a0a:5480:1ac::/48	9247	0.16%	211894 -- UNGLEICH-PLACE18, CH
40	2a0a:e5c0:45::/48	8957	0.15%	199553 -- UNGLEICH-PLACE5, CH
41	2a0a:e5c0:16::/48	8954	0.15%	199553 -- UNGLEICH-PLACE5, CH
42	2a0a:e5c1:517::/48	8952	0.15%	199553 -- UNGLEICH-PLACE5, CH
43	2001:678:658::/48	8823	0.15%	214450 -- OGL-AS, DE
44	2a0e:b107:19cb::/48	8711	0.15%	214450 -- OGL-AS, DE
45	2c0f:e8a8::/32	8370	0.14%	328631 -- BallitoISP, ZA
46	2600:6c7f:9370::/44	8075	0.14%	19115 -- CHARTER-19115-DC, US
47	2a13:aac4:1000::/36	7658	0.13%	204508 -- MLGT, IT
48	2a0f:7c40::/29	7592	0.13%	34600 -- AS6GNET, PL
49	2a0f:9400:737a::/48	7176	0.12%	213092 -- MARBLEIS, GB
50	2a02:16c8::/35	7116	0.12%	6871 -- PLUSNET UK Internet Service Provider, GB
Total		833323	14.24%

14 Day BGP Update Statistics Profile: 7-December-2025 00:00 - 21-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	21859741
Number of Prefix Changes:	25248121
Number of Prefix Updates:	21859741
Number of Prefix Withdrawals:	3388380
Average Prefixes per BGP Update:	1.16
Average BGP Update Messages per second:	18.07
Average Prefix Updates per second:	20.87
Peak BGP Update Message Rate per second:	28913	(22:39:19 Sun, 21-Dec-2025)
Peak Prefix Update Rate per second:	28913	(22:39:19 Sun, 21-Dec-2025)
Peak Prefix Withdraw Rate per second:	994	(21:09:50 Mon, 15-Dec-2025, )
Number of RIB Prefix Updates:	5559387	(0.25 of recv'd updates)
Number of RIB Prefix Withdrawals:	281641	(0.08 of recv'd withdrawals)
Peak RIB Update Rate per second:	15602	(11:09:53 Mon, 8-Dec-2025)
Peak RIB Withdrawal Rate per second:	465	(18:03:24 Thu, 18-Dec-2025)
Seen Prefix Count:	249162
Updated Prefix Count:	178734
Stable Prefix Count:	70428
Seen Origin AS Count:	35974
Updated Origin AS Count:	30951
Stable Origin AS Count:	5023
Seen Unique Path Count:	176299
Updated Path Count:	158628
Stable Path Count:	17671

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