The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 8 December 2025 01:17 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	202256	430794	9.21%	1175	366.63	LAWLIETNET, CN
2	7552	135260	2.89%	3967	34.10	VIETEL-AS-AP Viettel Group, VN
3	22616	129036	2.76%	37	3487.46	ZSCALER-SJC1, US
4	199340	123648	2.64%	4128	29.95	HONG-GUANWAN, HK
5	16509	96789	2.07%	5446	17.77	AMAZON-02, US
6	42375	92573	1.98%	354	261.51	INET-AS, SC
7	40138	78347	1.68%	41	1910.90	MDNET, US
8	211894	66640	1.42%	8	8330.00	UNGLEICH-PLACE18, CH
9	216193	64898	1.39%	1	64898.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
10	32098	53696	1.15%	1665	32.25	TRANSTELCO-INC, US
11	48456	50497	1.08%	180	280.54	IPX-AS, AE
12	272708	47933	1.02%	13	3687.15	MARTINS E SA LTDA, BR
13	8386	39848	0.85%	20	1992.40	KOCNET, TR
14	39891	38236	0.82%	2010	19.02	ALJAWWALSTC-AS, SA
15	268431	37757	0.81%	7	5393.86	netX TI LTDA, BR
16	50529	35173	0.75%	126	279.15	FN-AS, AE
17	204508	34255	0.73%	18	1903.06	MLGT, IT
18	38266	32966	0.70%	1393	23.67	VIL-AS-AP Vodafone Idea Ltd, IN
19	21351	32940	0.70%	17	1937.65	CANALPLUSTELECOM, GP
20	9829	31861	0.68%	836	38.11	BSNL-NIB National Internet Backbone, IN
21	214732	31513	0.67%	3	10504.33	RATATOSKR RATATOSKR, US
22	213092	30850	0.66%	12	2570.83	MARBLEIS, GB
23	43350	30840	0.66%	24	1285.00	NFORCE, NL
24	28126	27962	0.60%	14	1997.29	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
25	199553	27277	0.58%	6	4546.17	UNGLEICH-PLACE5, CH
26	34567	25568	0.55%	95	269.14	NEXT-AS, HK
27	28598	25036	0.54%	14	1788.29	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
28	139341	23788	0.51%	174	136.71	ACE-AS-AP ACE, SG
29	205651	23285	0.50%	1	23285.00	CATOFES, CN
30	17072	22472	0.48%	1410	15.94	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
31	9287	22118	0.47%	8	2764.75	TIDCC-AS-AP True Internet Data Center Company Limited, TH
32	48635	21138	0.45%	20	1056.90	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
33	262448	20955	0.45%	20	1047.75	DIALHOST INTERNET EIRELI, BR
34	265634	20744	0.44%	29	715.31	JR INTERCOM S.R.L, AR
35	199310	20619	0.44%	15	1374.60	QFLINK-AS WolfXun Experimental Research Global Network, CN
36	204210	19609	0.42%	4	4902.25	ZEUSPACKAGINGLTD, IE
37	23420	19141	0.41%	1	19141.00	AS-DAVENPRO, US
38	39572	19044	0.41%	33	577.09	ADVANCEDHOSTERS-AS, NL
39	61573	18867	0.40%	13	1451.31	Ip Telecom, BR
40	10103	18770	0.40%	12	1564.17	HKBN-AS-AP HK Broadband Network Ltd., HK
41	30058	18296	0.39%	142	128.85	FDCSERVERS, US
42	136873	18219	0.39%	8	2277.38	MEGADATA-AS-ID MEGADATA-ISP, ID
43	28548	17806	0.38%	198	89.93	Cablevision, S.A. de C.V., MX
44	61164	17320	0.37%	57	303.86	LIR-AS, AE
45	12041	16689	0.36%	228	73.20	AS-AFILIAS1, US
46	2018	16628	0.36%	14	1187.71	TENET-1, ZA
47	209898	16411	0.35%	2	8205.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
48	21664	16366	0.35%	39	419.64	AMZN-BYOASN, US
49	151810	15340	0.33%	4	3835.00	PHYLAXISINC-AS-AP Phylaxis Korea, KR
50	203664	15273	0.33%	1	15273.00	LANXING-AS, CN
Total		2291091	48.98%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	216193	64898.0	1.39%	1	64898	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	205651	23285.0	0.50%	1	23285	CATOFES, CN
3	23420	19141.0	0.41%	1	19141	AS-DAVENPRO, US
4	203664	15273.0	0.33%	1	15273	LANXING-AS, CN
5	272053	13243.0	0.28%	1	13243	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
6	92	12286.0	0.26%	1	12286	CLARKSON-AS, US
7	44297	12261.0	0.26%	1	12261	ICODIA ICODIA NETWORK INTEGRITY, FR
8	210564	12052.0	0.26%	1	12052	SWANTZTER-AS, SE
9	214732	10504.3	0.67%	3	31513	RATATOSKR RATATOSKR, US
10	52191	9758.0	0.21%	1	9758	LOCALKA-NET-AS , UA
11	328631	9482.0	0.20%	1	9482	BallitoISP, ZA
12	211894	8330.0	1.42%	8	66640	UNGLEICH-PLACE18, CH
13	209898	8205.5	0.35%	2	16411	UNGLEICH-UNGLEICH-UPSTREAM, CH
14	210305	8187.0	0.18%	1	8187	FRR-TESTLAB, US
15	271944	7015.0	0.15%	1	7015	AUDIBEL TELECOMUNICACIONES S.A., AR
16	204210	6536.3	0.42%	4	19609	ZEUSPACKAGINGLTD, IE
17	141145	6275.0	0.13%	1	6275	GIGANET-AS-ID PT Giga Digital Nusantara, ID
18	11761	6081.0	0.13%	1	6081	KKCLOUD, US
19	199678	5936.0	0.13%	1	5936	AS-6RW-, RU
20	268431	5393.9	0.81%	7	37757	netX TI LTDA, BR
21	30362	4906.0	0.10%	1	4906	HPT-ASN, US
22	20915	4904.0	0.10%	1	4904	HUNDRED-PERCENT-IT, GB
23	265314	4727.0	0.10%	1	4727	Toolsoft Tecnologia Ltda, BR
24	138535	4726.0	0.20%	3	9452	FURDEVS-AS-AP Wu Qi, CN
25	199553	4546.2	0.58%	6	27277	UNGLEICH-PLACE5, CH
26	9287	4423.6	0.47%	8	22118	TIDCC-AS-AP True Internet Data Center Company Limited, TH
27	215280	4042.0	0.26%	3	12126	OCEAN-CA OCEAN NETWORKS, US
28	41701	4016.0	0.09%	1	4016	CAP-FIN-AS, FI
29	198090	3901.0	0.08%	1	3901	ASLIBRA, IT
30	21570	3869.0	0.08%	5	3869	ACI-1, CA
31	151810	3835.0	0.33%	4	15340	PHYLAXISINC-AS-AP Phylaxis Korea, KR
32	24474	3713.5	0.16%	2	7427	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
33	272708	3687.2	1.02%	13	47933	MARTINS E SA LTDA, BR
34	22616	3487.5	2.76%	37	129036	ZSCALER-SJC1, US
35	208824	3466.3	0.22%	3	10399	POLOPRO, ES
36	211645	3399.0	0.07%	1	3399	SPG, DE
37	399916	3305.0	0.07%	1	3305	PACKETSTREAM-NAM, US
38	262901	3247.5	0.14%	2	6495	Vcnet Provedora de Internet Ltda., BR
39	199327	3165.7	0.20%	3	9497	OBEONE, FR
40	266136	3020.0	0.19%	3	9060	R.A INTERNET, BR
41	210796	2989.0	0.13%	2	5978	BJOERN-SCHLEYER Bjoern Schleyer, DE
42	52740	2930.0	0.13%	2	5860	PRODAP-Centro de Gestao da Tecnologia e Informacao, BR
43	401106	2866.0	0.06%	2	2866	TECHIES365, US
44	199235	2750.0	0.06%	1	2750	MIKROHALO-HU-AS, HU
45	30083	2742.0	0.18%	3	8226	AS-30083-US-VELIA-NET, DE
46	264525	2629.0	0.28%	5	13145	Coelho Tecnologia, BR
47	214160	2627.0	0.06%	2	2627	SHREE, GB
48	26445	2587.0	0.06%	1	2587	OWL, US
49	139311	2575.5	0.11%	2	5151	STELLAIT-AS-AP Stella IT, KR
50	213092	2570.8	0.66%
Total		369796.8	17.44%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a03:eec0:3212::/48	128698	2.59%	22616 -- ZSCALER-SJC1, US
2	2a13:1c47:c0d0::/44	64898	1.31%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	2a02:1391:5100::/40	32910	0.66%	21351 -- CANALPLUSTELECOM, GP
4	2a14:7c0:5300::/48	31505	0.63%	214732 -- RATATOSKR RATATOSKR, US
5	2804:248:100::/40	24924	0.50%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
6	2a0d:2904::/44	23285	0.47%	205651 -- CATOFES, CN
7	2a0c:b641:302::/47	19603	0.40%	204210 -- ZEUSPACKAGINGLTD, IE
8	2605:9c40::/32	19141	0.39%	23420 -- AS-DAVENPRO, US
9	2804:511c::/33	18936	0.38%	268431 -- netX TI LTDA, BR
10	2804:511c:8000::/33	18755	0.38%	268431 -- netX TI LTDA, BR
11	240d:c010:165::/48	18392	0.37%	139341 -- ACE-AS-AP ACE, SG
12	2a02:b48:83f1::/48	17916	0.36%	39572 -- ADVANCEDHOSTERS-AS, NL
13	2a0a:e5c0:76::/48	16390	0.33%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
14	2a0e:aa07:e044::/48	15273	0.31%	203664 -- LANXING-AS, CN
15	2604:bc80:8000::/33	14649	0.30%	29066 -- VELIANET-AS velia.net Internetdienste GmbH, DE
16	2803:5d10::/32	13243	0.27%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
17	2804:20fc:2000::/36	13099	0.26%	264525 -- Coelho Tecnologia, BR
18	2605:6480::/32	12286	0.25%	92 -- CLARKSON-AS, US
19	2a0b:f8c0::/29	12261	0.25%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
20	2001:67c:20fc::/48	12052	0.24%	210564 -- SWANTZTER-AS, SE
21	2001:67c:21f0::/48	9758	0.20%	52191 -- LOCALKA-NET-AS , UA
22	2c0f:e8a8::/32	9483	0.19%	328631 -- BallitoISP, ZA
23	2406:840:e620::/48	9442	0.19%	138535 -- FURDEVS-AS-AP Wu Qi, CN
24	2a0a:5480:4::/48	9331	0.19%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480::/48	9327	0.19%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:1::/48	9327	0.19%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:3::/48	9315	0.19%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480:5::/48	9297	0.19%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480:2::/48	9295	0.19%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480:1ac::/48	9294	0.19%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:e5c0:45::/48	9079	0.18%	199553 -- UNGLEICH-PLACE5, CH
32	2a0a:e5c0:16::/48	9078	0.18%	199553 -- UNGLEICH-PLACE5, CH
33	2a0a:e5c1:517::/48	9067	0.18%	199553 -- UNGLEICH-PLACE5, CH
34	2804:876c:4000::/34	8989	0.18%	272708 -- MARTINS E SA LTDA, BR
35	2600:6c7f:9370::/44	8947	0.18%	19115 -- CHARTER-19115-DC, US
36	2804:876c:c000::/34	8876	0.18%	272708 -- MARTINS E SA LTDA, BR
37	2804:876c:8000::/34	8846	0.18%	272708 -- MARTINS E SA LTDA, BR
38	2605:de00:bb::/48	8224	0.17%	30083 -- AS-30083-US-VELIA-NET, DE
39	2a07:e480:110::/48	8187	0.16%	210305 -- FRR-TESTLAB, US
40	2400:7400:43::/48	8143	0.16%	23736 -- TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
41	2a14:3f87:9800::/38	7697	0.16%	64289 -- MACARNE, US
42	2a13:aac4:1000::/36	7463	0.15%	204508 -- MLGT, IT
43	2804:876c::/34	7363	0.15%	272708 -- MARTINS E SA LTDA, BR
44	2800:540:2000::/44	7213	0.15%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
45	2a02:16c8::/35	7155	0.14%	6871 -- PLUSNET UK Internet Service Provider, GB
46	2803:6610::/32	7015	0.14%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
47	2400:58a0:1003::/48	6921	0.14%	149500 -- SR-AS-AP Shane Renshaw, HK
48	2a0d:d9c3::/32	6888	0.14%	208948 -- RECYCLED-CLOUD-AS, CH
49	2a05:4140:304::/48	6828	0.14%	204508 -- MLGT, IT
50	2402:e580:74b8::/48	6818	0.14%	40138 -- MDNET, US
Total		780882	15.76%

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

Number of BGP Update Messages:	23168412
Number of Prefix Changes:	27432623
Number of Prefix Updates:	23168412
Number of Prefix Withdrawals:	4264211
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	19.15
Average Prefix Updates per second:	22.68
Peak BGP Update Message Rate per second:	37445	(10:11:30 Mon, 24-Nov-2025)
Peak Prefix Update Rate per second:	37445	(10:11:30 Mon, 24-Nov-2025)
Peak Prefix Withdraw Rate per second:	3301	(21:30:29 Tue, 25-Nov-2025, )
Number of RIB Prefix Updates:	4677231	(0.20 of recv'd updates)
Number of RIB Prefix Withdrawals:	284717	(0.07 of recv'd withdrawals)
Peak RIB Update Rate per second:	35371	(10:11:30 Mon, 24-Nov-2025)
Peak RIB Withdrawal Rate per second:	477	(21:30:29 Tue, 25-Nov-2025)
Seen Prefix Count:	251914
Updated Prefix Count:	202303
Stable Prefix Count:	49611
Seen Origin AS Count:	35956
Updated Origin AS Count:	33721
Stable Origin AS Count:	2235
Seen Unique Path Count:	188269
Updated Path Count:	175709
Stable Path Count:	12560

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