The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 20 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	539572	11.34%	504	1070.58	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
2	7552	477179	10.03%	3977	119.98	VIETEL-AS-AP Viettel Group, VN
3	202256	226628	4.76%	886	255.79	LAWLIETNET, CN
4	16509	101109	2.13%	5478	18.46	AMAZON-02, US
5	39891	97195	2.04%	2058	47.23	ALJAWWALSTC-AS, SA
6	199340	97163	2.04%	4143	23.45	HONG-GUANWAN, HK
7	34600	91504	1.92%	1	91504.00	AS6GNET, PL
8	8386	91203	1.92%	20	4560.15	KOCNET, TR
9	40138	84679	1.78%	38	2228.39	MDNET, US
10	211894	67002	1.41%	8	8375.25	UNGLEICH-PLACE18, CH
11	28126	63282	1.33%	23	2751.39	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
12	22616	62943	1.32%	39	1613.92	ZSCALER-SJC1, US
13	28649	52403	1.10%	77	680.56	Desktop Sigmanet Comunicacao Multimidia SA, BR
14	204508	51043	1.07%	18	2835.72	MLGT, IT
15	12041	43170	0.91%	228	189.34	AS-AFILIAS1, US
16	21351	41567	0.87%	17	2445.12	CANALPLUSTELECOM, GP
17	38266	34940	0.73%	1382	25.28	VIL-AS-AP Vodafone Idea Ltd, IN
18	216193	32408	0.68%	1	32408.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
19	38841	31359	0.66%	38	825.24	KBRO-AS-TW kbro CO. Ltd., TW
20	205651	27556	0.58%	1	27556.00	CATOFES, CN
21	199553	27325	0.57%	6	4554.17	UNGLEICH-PLACE5, CH
22	265634	26022	0.55%	29	897.31	JR INTERCOM S.R.L, AR
23	43350	24066	0.51%	24	1002.75	NFORCE, NL
24	214732	23828	0.50%	3	7942.67	RATATOSKR RATATOSKR, US
25	139341	22924	0.48%	175	130.99	ACE-AS-AP ACE, SG
26	17072	20832	0.44%	1413	14.74	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
27	216141	20829	0.44%	1	20829.00	LEATYON-AS, IT
28	5416	20757	0.44%	1042	19.92	Internet Service Provider, BH
29	262448	20478	0.43%	20	1023.90	DIALHOST INTERNET EIRELI, BR
30	42375	19628	0.41%	446	44.01	INET-AS, SC
31	204210	19102	0.40%	4	4775.50	ZEUSPACKAGINGLTD, IE
32	28640	19100	0.40%	15	1273.33	VIPWay Telecomunicacoes Ltda, BR
33	10103	19060	0.40%	12	1588.33	HKBN-AS-AP HK Broadband Network Ltd., HK
34	51202	18063	0.38%	12	1505.25	NUXOA, DE
35	24173	17585	0.37%	261	67.38	NETNAM-AS-AP Netnam Company, VN
36	203664	17215	0.36%	1	17215.00	LANXING-AS, CN
37	213092	17093	0.36%	12	1424.42	MARBLEIS, GB
38	268431	16744	0.35%	7	2392.00	netX TI LTDA, BR
39	214450	16718	0.35%	2	8359.00	OGL-AS, DE
40	209898	16542	0.35%	2	8271.00	UNGLEICH-UNGLEICH-UPSTREAM, CH
41	45271	16263	0.34%	1249	13.02	VIL-AS-AP Vodafone Idea Ltd, IN
42	48635	15945	0.34%	21	759.29	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
43	11172	15757	0.33%	2173	7.25	Alestra, S. de R.L. de C.V., MX
44	272053	15562	0.33%	1	15562.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
45	12735	15317	0.32%	416	36.82	ASTURKNET, TR
46	28598	14709	0.31%	14	1050.64	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
47	21664	14436	0.30%	39	370.15	AMZN-BYOASN, US
48	30058	13976	0.29%	143	97.73	FDCSERVERS, US
49	210564	13814	0.29%	1	13814.00	SWANTZTER-AS, SE
50	36183	13785	0.29%	1644	8.39	AKAMAI-AS, US
Total		2867380	60.25%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	91504.0	1.92%	1	91504	AS6GNET, PL
2	216193	32408.0	0.68%	1	32408	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	205651	27556.0	0.58%	1	27556	CATOFES, CN
4	216141	20829.0	0.44%	1	20829	LEATYON-AS, IT
5	203664	17215.0	0.36%	1	17215	LANXING-AS, CN
6	272053	15562.0	0.33%	1	15562	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
7	210564	13814.0	0.29%	1	13814	SWANTZTER-AS, SE
8	214732	11914.0	0.50%	3	23828	RATATOSKR RATATOSKR, US
9	44297	11018.0	0.23%	1	11018	ICODIA ICODIA NETWORK INTEGRITY, FR
10	30083	9474.0	0.20%	3	9474	AS-30083-US-VELIA-NET, DE
11	328631	8536.0	0.18%	1	8536	BallitoISP, ZA
12	211894	8375.2	1.41%	8	67002	UNGLEICH-PLACE18, CH
13	214450	8359.0	0.35%	2	16718	OGL-AS, DE
14	209898	8271.0	0.35%	2	16542	UNGLEICH-UNGLEICH-UPSTREAM, CH
15	210305	7128.0	0.15%	1	7128	FRR-TESTLAB, US
16	271944	7034.0	0.15%	1	7034	AUDIBEL TELECOMUNICACIONES S.A., AR
17	204210	6367.3	0.40%	4	19102	ZEUSPACKAGINGLTD, IE
18	268487	6178.0	0.13%	5	6178	PRISMA TELECOMUNICACOES LTDA. EPP, BR
19	199678	5987.0	0.13%	1	5987	AS-6RW-, RU
20	52191	5647.0	0.12%	1	5647	LOCALKA-NET-AS , UA
21	6535	5570.0	0.23%	8	11140	Telmex Servicios Empresariales S.A., CL
22	22616	4841.8	1.32%	39	62943	ZSCALER-SJC1, US
23	20915	4792.0	0.10%	1	4792	HUNDRED-PERCENT-IT, GB
24	8386	4560.1	1.92%	20	91203	KOCNET, TR
25	199553	4554.2	0.57%	6	27325	UNGLEICH-PLACE5, CH
26	141145	4485.0	0.09%	1	4485	GIGANET-AS-ID PT Giga Digital Nusantara, ID
27	21351	4156.7	0.87%	17	41567	CANALPLUSTELECOM, GP
28	265314	3980.0	0.08%	1	3980	Toolsoft Tecnologia Ltda, BR
29	21570	3967.0	0.08%	5	3967	ACI-1, CA
30	198090	3892.0	0.08%	1	3892	ASLIBRA, IT
31	24474	3804.5	0.16%	2	7609	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
32	138535	3701.7	0.23%	3	11105	FURDEVS-AS-AP Wu Qi, CN
33	30362	3595.0	0.08%	1	3595	HPT-ASN, US
34	210796	3271.5	0.14%	2	6543	BJOERN-SCHLEYER Bjoern Schleyer, DE
35	211645	3252.0	0.07%	1	3252	SPG, DE
36	26445	3177.0	0.07%	1	3177	OWL, US
37	58821	3067.8	0.26%	4	12271	IDNIC-LJN-AS-ID PT Lintas Jaringan Nusantara, ID
38	203309	2976.0	0.13%	3	5952	CHOCO-AS, CN
39	151810	2964.8	0.25%	4	11859	PHYLAXISINC-AS-AP Phylaxis Korea, KR
40	28126	2876.5	1.33%	23	63282	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
41	394106	2874.0	0.18%	3	8622	BEIDEAL, US
42	212173	2868.0	0.06%	1	2868	XP, SA
43	399916	2846.0	0.06%	1	2846	PACKETSTREAM-NAM, US
44	262901	2843.5	0.12%	2	5687	Vcnet Provedora de Internet Ltda., BR
45	204508	2835.7	1.07%	18	51043	MLGT, IT
46	199235	2796.0	0.06%	1	2796	MIKROHALO-HU-AS, HU
47	214160	2639.0	0.06%	2	2639	SHREE, GB
48	60742	2617.0	0.06%	1	2617	DAWOX, AT
49	52382	2545.0	0.05%	1	2545	Faculte Des Sciences, Universite dEtat dHaiti, HT
50	268431	2392.0	0.35%
Total		427918.3	19.03%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	91504	1.82%	34600 -- AS6GNET, PL
2	2a03:eec0:3212::/48	62870	1.25%	22616 -- ZSCALER-SJC1, US
3	2a02:1391:5100::/40	41559	0.82%	21351 -- CANALPLUSTELECOM, GP
4	2a13:1c47:c0d0::/44	32408	0.64%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
5	2a0d:2904::/44	27556	0.55%	205651 -- CATOFES, CN
6	2a14:7c0:5300::/48	23826	0.47%	214732 -- RATATOSKR RATATOSKR, US
7	2a11:f2c0:ffc7::/48	20829	0.41%	216141 -- LEATYON-AS, IT
8	240d:c010:165::/48	19091	0.38%	139341 -- ACE-AS-AP ACE, SG
9	2a0c:b641:302::/47	19083	0.38%	204210 -- ZEUSPACKAGINGLTD, IE
10	2a0e:aa07:e044::/48	17216	0.34%	203664 -- LANXING-AS, CN
11	2a0a:e5c0:76::/48	16540	0.33%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2803:5d10::/32	15562	0.31%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
13	2804:248:100::/40	14644	0.29%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
14	2001:67c:20fc::/48	13814	0.27%	210564 -- SWANTZTER-AS, SE
15	2001:930:108::/48	12664	0.25%	8386 -- KOCNET, TR
16	2001:930:126::/48	12659	0.25%	8386 -- KOCNET, TR
17	2001:930:124::/48	12659	0.25%	8386 -- KOCNET, TR
18	2001:930:154::/48	12658	0.25%	8386 -- KOCNET, TR
19	2001:930:127::/48	12656	0.25%	8386 -- KOCNET, TR
20	2001:930:114::/48	12654	0.25%	8386 -- KOCNET, TR
21	2a05:4140:380::/42	11912	0.24%	204508 -- MLGT, IT
22	2a14:3f87:9800::/38	11845	0.24%	64289 -- MACARNE, US
23	2a05:4140:316::/48	11774	0.23%	204508 -- MLGT, IT
24	2a05:4140:304::/48	11718	0.23%	204508 -- MLGT, IT
25	2a05:4140:333::/48	11663	0.23%	204508 -- MLGT, IT
26	2406:840:e620::/48	11056	0.22%	138535 -- FURDEVS-AS-AP Wu Qi, CN
27	2a0b:f8c0::/29	11019	0.22%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
28	2605:de00:bb::/48	9474	0.19%	30083 -- AS-30083-US-VELIA-NET, DE
29	2a0a:5480:4::/48	9327	0.19%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480::/48	9322	0.19%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:5480:1::/48	9321	0.18%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480:3::/48	9300	0.18%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:2::/48	9280	0.18%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480:5::/48	9276	0.18%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:1ac::/48	9265	0.18%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:e5c0:45::/48	8910	0.18%	199553 -- UNGLEICH-PLACE5, CH
37	2a0a:e5c0:16::/48	8907	0.18%	199553 -- UNGLEICH-PLACE5, CH
38	2a0a:e5c1:517::/48	8899	0.18%	199553 -- UNGLEICH-PLACE5, CH
39	2c0f:e8a8::/32	8536	0.17%	328631 -- BallitoISP, ZA
40	2001:678:658::/48	8413	0.17%	214450 -- OGL-AS, DE
41	2600:6c7f:9370::/44	8403	0.17%	19115 -- CHARTER-19115-DC, US
42	2804:511c::/33	8401	0.17%	268431 -- netX TI LTDA, BR
43	2804:511c:8000::/33	8307	0.16%	268431 -- netX TI LTDA, BR
44	2a0e:b107:19cb::/48	8305	0.16%	214450 -- OGL-AS, DE
45	2a07:e480:110::/48	7128	0.14%	210305 -- FRR-TESTLAB, US
46	2803:6610::/32	7034	0.14%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
47	2a02:16c8::/35	6949	0.14%	6871 -- PLUSNET UK Internet Service Provider, GB
48	2605:9cc0:c0e::/48	6777	0.13%	21664 -- AMZN-BYOASN, US 8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
49	2402:e580:74b8::/48	6707	0.13%	40138 -- MDNET, US
50	2804:20fc:2000::/36	6638	0.13%	264525 -- Coelho Tecnologia, BR
Total		766318	15.19%

14 Day BGP Update Statistics Profile: 5-December-2025 00:00 - 19-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	20970563
Number of Prefix Changes:	24491390
Number of Prefix Updates:	20970563
Number of Prefix Withdrawals:	3520827
Average Prefixes per BGP Update:	1.17
Average BGP Update Messages per second:	17.34
Average Prefix Updates per second:	20.25
Peak BGP Update Message Rate per second:	14571	(11:09:53 Mon, 8-Dec-2025)
Peak Prefix Update Rate per second:	14571	(11:09:53 Mon, 8-Dec-2025)
Peak Prefix Withdraw Rate per second:	994	(21:09:50 Mon, 15-Dec-2025, )
Number of RIB Prefix Updates:	4756765	(0.23 of recv'd updates)
Number of RIB Prefix Withdrawals:	281793	(0.08 of recv'd withdrawals)
Peak RIB Update Rate per second:	13877	(11:09:53 Mon, 8-Dec-2025)
Peak RIB Withdrawal Rate per second:	455	(18:03:24 Thu, 18-Dec-2025)
Seen Prefix Count:	249244
Updated Prefix Count:	177540
Stable Prefix Count:	71704
Seen Origin AS Count:	35960
Updated Origin AS Count:	30876
Stable Origin AS Count:	5084
Seen Unique Path Count:	162717
Updated Path Count:	143973
Stable Path Count:	18744

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