The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 13 December 2025 01:16 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	202256	318101	7.63%	1162	273.75	LAWLIETNET, CN
2	7552	230295	5.53%	3968	58.04	VIETEL-AS-AP Viettel Group, VN
3	39891	201120	4.83%	2058	97.73	ALJAWWALSTC-AS, SA
4	22616	133252	3.20%	39	3416.72	ZSCALER-SJC1, US
5	199340	111099	2.67%	4157	26.73	HONG-GUANWAN, HK
6	16509	94747	2.27%	5442	17.41	AMAZON-02, US
7	40138	81574	1.96%	41	1989.61	MDNET, US
8	211894	65153	1.56%	8	8144.12	UNGLEICH-PLACE18, CH
9	216193	64893	1.56%	1	64893.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
10	8386	61921	1.49%	20	3096.05	KOCNET, TR
11	42375	58499	1.40%	354	165.25	INET-AS, SC
12	12041	42691	1.02%	228	187.24	AS-AFILIAS1, US
13	268431	41540	1.00%	7	5934.29	netX TI LTDA, BR
14	272708	38413	0.92%	13	2954.85	MARTINS E SA LTDA, BR
15	21351	35545	0.85%	17	2090.88	CANALPLUSTELECOM, GP
16	43350	34524	0.83%	24	1438.50	NFORCE, NL
17	48456	32787	0.79%	180	182.15	IPX-AS, AE
18	28126	27973	0.67%	9	3108.11	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
19	199553	27908	0.67%	6	4651.33	UNGLEICH-PLACE5, CH
20	265634	27475	0.66%	29	947.41	JR INTERCOM S.R.L, AR
21	213092	26833	0.64%	12	2236.08	MARBLEIS, GB
22	17072	26172	0.63%	1414	18.51	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
23	205651	26032	0.62%	1	26032.00	CATOFES, CN
24	214732	24127	0.58%	3	8042.33	RATATOSKR RATATOSKR, US
25	48635	23239	0.56%	21	1106.62	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
26	50529	22806	0.55%	126	181.00	FN-AS, AE
27	28598	22700	0.54%	14	1621.43	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
28	139341	22666	0.54%	178	127.34	ACE-AS-AP ACE, SG
29	9829	21312	0.51%	836	25.49	BSNL-NIB National Internet Backbone, IN
30	30058	19997	0.48%	143	139.84	FDCSERVERS, US
31	262448	19851	0.48%	20	992.55	DIALHOST INTERNET EIRELI, BR
32	61573	19316	0.46%	13	1485.85	Ip Telecom, BR
33	204210	18970	0.46%	4	4742.50	ZEUSPACKAGINGLTD, IE
34	10103	18188	0.44%	12	1515.67	HKBN-AS-AP HK Broadband Network Ltd., HK
35	39686	17614	0.42%	14	1258.14	AS-EUROFIBER, NL
36	2018	17129	0.41%	14	1223.50	TENET-1, ZA
37	209898	16781	0.40%	2	8390.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
38	11172	15977	0.38%	2152	7.42	Alestra, S. de R.L. de C.V., MX
39	34567	15913	0.38%	88	180.83	NEXT-AS, HK
40	12735	15640	0.38%	417	37.51	ASTURKNET, TR
41	21664	15246	0.37%	39	390.92	AMZN-BYOASN, US
42	13335	14396	0.35%	3014	4.78	CLOUDFLARENET, US
43	151810	14248	0.34%	4	3562.00	PHYLAXISINC-AS-AP Phylaxis Korea, KR
44	39572	13708	0.33%	32	428.38	ADVANCEDHOSTERS-AS, NL
45	23679	13638	0.33%	26	524.54	NUSANET-AS-ID PT. Media Antar Nusa, ID
46	204508	13636	0.33%	18	757.56	MLGT, IT
47	208824	13371	0.32%	3	4457.00	POLOPRO, ES
48	272053	13029	0.31%	1	13029.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
49	51202	12971	0.31%	12	1080.92	NUXOA, DE
50	210564	12936	0.31%	1	12936.00	SWANTZTER-AS, SE
Total		2277952	54.67%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	216193	64893.0	1.56%	1	64893	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	205651	26032.0	0.62%	1	26032	CATOFES, CN
3	272053	13029.0	0.31%	1	13029	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
4	210564	12936.0	0.31%	1	12936	SWANTZTER-AS, SE
5	44297	11808.0	0.28%	1	11808	ICODIA ICODIA NETWORK INTEGRITY, FR
6	23420	11508.0	0.28%	1	11508	AS-DAVENPRO, US
7	203664	11296.0	0.27%	1	11296	LANXING-AS, CN
8	328631	9328.0	0.22%	1	9328	BallitoISP, ZA
9	209898	8390.5	0.40%	2	16781	UNGLEICH-UNGLEICH-UPSTREAM, CH
10	210305	8187.0	0.20%	1	8187	FRR-TESTLAB, US
11	211894	8144.1	1.56%	8	65153	UNGLEICH-PLACE18, CH
12	214732	8042.3	0.58%	3	24127	RATATOSKR RATATOSKR, US
13	92	7314.0	0.18%	1	7314	CLARKSON-AS, US
14	271944	6968.0	0.17%	1	6968	AUDIBEL TELECOMUNICACIONES S.A., AR
15	204210	6323.3	0.46%	4	18970	ZEUSPACKAGINGLTD, IE
16	199678	6283.0	0.15%	1	6283	AS-6RW-, RU
17	141145	5969.0	0.14%	1	5969	GIGANET-AS-ID PT Giga Digital Nusantara, ID
18	268431	5934.3	1.00%	7	41540	netX TI LTDA, BR
19	138535	5361.0	0.26%	3	10722	FURDEVS-AS-AP Wu Qi, CN
20	52191	4779.0	0.11%	1	4779	LOCALKA-NET-AS , UA
21	20915	4778.0	0.11%	1	4778	HUNDRED-PERCENT-IT, GB
22	199553	4651.3	0.67%	6	27908	UNGLEICH-PLACE5, CH
23	30362	4608.0	0.11%	1	4608	HPT-ASN, US
24	208824	4457.0	0.32%	3	13371	POLOPRO, ES
25	268487	4072.0	0.10%	5	4072	PRISMA TELECOMUNICACOES LTDA. EPP, BR
26	21570	4029.0	0.10%	5	4029	ACI-1, CA
27	30083	3910.3	0.28%	3	11731	AS-30083-US-VELIA-NET, DE
28	198090	3885.0	0.09%	1	3885	ASLIBRA, IT
29	26445	3766.0	0.09%	1	3766	OWL, US
30	24474	3741.0	0.18%	2	7482	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
31	214450	3668.0	0.18%	2	7336	OGL-AS, DE
32	151810	3562.0	0.34%	4	14248	PHYLAXISINC-AS-AP Phylaxis Korea, KR
33	21351	3554.5	0.85%	17	35545	CANALPLUSTELECOM, GP
34	399916	3456.0	0.08%	1	3456	PACKETSTREAM-NAM, US
35	22616	3416.7	3.20%	39	133252	ZSCALER-SJC1, US
36	210796	3371.0	0.16%	2	6742	BJOERN-SCHLEYER Bjoern Schleyer, DE
37	266136	3321.7	0.24%	3	9965	R.A INTERNET, BR
38	211645	3282.0	0.08%	1	3282	SPG, DE
39	28126	3108.1	0.67%	9	27973	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
40	8386	3096.1	1.49%	20	61921	KOCNET, TR
41	214160	2969.0	0.07%	2	2969	SHREE, GB
42	272708	2954.8	0.92%	13	38413	MARTINS E SA LTDA, BR
43	139311	2805.0	0.13%	2	5610	STELLAIT-AS-AP Stella IT, KR
44	199235	2779.0	0.07%	1	2779	MIKROHALO-HU-AS, HU
45	262901	2659.0	0.13%	2	5318	Vcnet Provedora de Internet Ltda., BR
46	52382	2582.0	0.06%	1	2582	Faculte Des Sciences, Universite dEtat dHaiti, HT
47	208948	2525.0	0.18%	3	7575	RECYCLED-CLOUD-AS, CH
48	199689	2498.0	0.06%	1	2498	JOSHA-PRIOR Netralex BYOIP, NL
49	214366	2388.0	0.06%	1	2388	PRIVACYFIRST, AE
50	6871	2333.0	0.17%
Total		344752	20.25%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a03:eec0:3212::/48	133182	3.01%	22616 -- ZSCALER-SJC1, US
2	2a13:1c47:c0d0::/44	64893	1.47%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	2a02:1391:5100::/40	35536	0.80%	21351 -- CANALPLUSTELECOM, GP
4	2a0d:2904::/44	26032	0.59%	205651 -- CATOFES, CN
5	2a14:7c0:5300::/48	24119	0.54%	214732 -- RATATOSKR RATATOSKR, US
6	2804:248:100::/40	22642	0.51%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
7	2804:511c:8000::/33	20741	0.47%	268431 -- netX TI LTDA, BR
8	2804:511c::/33	20719	0.47%	268431 -- netX TI LTDA, BR
9	2a0c:b641:302::/47	18964	0.43%	204210 -- ZEUSPACKAGINGLTD, IE
10	240d:c010:165::/48	18534	0.42%	139341 -- ACE-AS-AP ACE, SG
11	2a0a:e5c0:76::/48	16777	0.38%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2a02:b48:83f1::/48	13623	0.31%	39572 -- ADVANCEDHOSTERS-AS, NL
13	2803:5d10::/32	13029	0.29%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
14	2001:67c:20fc::/48	12936	0.29%	210564 -- SWANTZTER-AS, SE
15	2a0b:f8c0::/29	11808	0.27%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
16	2605:de00:bb::/48	11729	0.26%	30083 -- AS-30083-US-VELIA-NET, DE
17	2605:9c40::/32	11508	0.26%	23420 -- AS-DAVENPRO, US
18	2a0e:aa07:e044::/48	11296	0.26%	203664 -- LANXING-AS, CN
19	2406:840:e620::/48	10720	0.24%	138535 -- FURDEVS-AS-AP Wu Qi, CN
20	2a0a:5480:4::/48	9332	0.21%	211894 -- UNGLEICH-PLACE18, CH
21	2c0f:e8a8::/32	9329	0.21%	328631 -- BallitoISP, ZA
22	2a0a:5480:1::/48	9324	0.21%	211894 -- UNGLEICH-PLACE18, CH
23	2a0a:5480::/48	9323	0.21%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:3::/48	9309	0.21%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:5::/48	9284	0.21%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:2::/48	9284	0.21%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:1ac::/48	9281	0.21%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:e5c0:45::/48	8817	0.20%	199553 -- UNGLEICH-PLACE5, CH
29	2a0a:e5c0:16::/48	8814	0.20%	199553 -- UNGLEICH-PLACE5, CH
30	2a0a:e5c1:517::/48	8779	0.20%	199553 -- UNGLEICH-PLACE5, CH
31	2001:930:154::/48	8561	0.19%	8386 -- KOCNET, TR
32	2001:930:114::/48	8559	0.19%	8386 -- KOCNET, TR
33	2001:930:124::/48	8467	0.19%	8386 -- KOCNET, TR
34	2001:930:127::/48	8460	0.19%	8386 -- KOCNET, TR
35	2001:930:126::/48	8460	0.19%	8386 -- KOCNET, TR
36	2001:930:108::/48	8455	0.19%	8386 -- KOCNET, TR
37	2a07:e480:110::/48	8187	0.18%	210305 -- FRR-TESTLAB, US
38	2400:7400:43::/48	8143	0.18%	23736 -- TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
39	2804:876c:4000::/34	7809	0.18%	272708 -- MARTINS E SA LTDA, BR
40	2a0d:d9c3::/32	7561	0.17%	208948 -- RECYCLED-CLOUD-AS, CH
41	2605:6480::/32	7314	0.17%	92 -- CLARKSON-AS, US
42	2600:6c7f:9370::/44	7055	0.16%	19115 -- CHARTER-19115-DC, US
43	2800:540:2000::/44	7053	0.16%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
44	2a02:16c8::/35	6995	0.16%	6871 -- PLUSNET UK Internet Service Provider, GB
45	2605:9cc0:c0e::/48	6990	0.16%	21664 -- AMZN-BYOASN, US 8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
46	2803:6610::/32	6968	0.16%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
47	2804:876c::/34	6936	0.16%	272708 -- MARTINS E SA LTDA, BR
48	2402:e580:74b8::/48	6927	0.16%	40138 -- MDNET, US
49	2604:bc80:8000::/33	6553	0.15%	29066 -- VELIANET-AS velia.net Internetdienste GmbH, DE
50	2001:67c:12d4::/48	6283	0.14%	199678 -- AS-6RW-, RU
Total		751400	16.98%

14 Day BGP Update Statistics Profile: 28-November-2025 00:00 - 12-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	21083752
Number of Prefix Changes:	24904596
Number of Prefix Updates:	21083752
Number of Prefix Withdrawals:	3820844
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	17.43
Average Prefix Updates per second:	20.59
Peak BGP Update Message Rate per second:	30069	(08:05:30 Sun, 30-Nov-2025)
Peak Prefix Update Rate per second:	30069	(08:05:30 Sun, 30-Nov-2025)
Peak Prefix Withdraw Rate per second:	824	(16:44:55 Sun, 30-Nov-2025, )
Number of RIB Prefix Updates:	4166471	(0.20 of recv'd updates)
Number of RIB Prefix Withdrawals:	262892	(0.07 of recv'd withdrawals)
Peak RIB Update Rate per second:	27345	(08:05:30 Sun, 30-Nov-2025)
Peak RIB Withdrawal Rate per second:	329	(07:37:44 Sat, 6-Dec-2025)
Seen Prefix Count:	248611
Updated Prefix Count:	197818
Stable Prefix Count:	50793
Seen Origin AS Count:	35969
Updated Origin AS Count:	33799
Stable Origin AS Count:	2170
Seen Unique Path Count:	164196
Updated Path Count:	150323
Stable Path Count:	13873

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