The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 18 December 2025 01:17 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	7552	499471	11.68%	3977	125.59	VIETEL-AS-AP Viettel Group, VN
2	202256	240986	5.63%	903	266.87	LAWLIETNET, CN
3	39891	127317	2.98%	2058	61.86	ALJAWWALSTC-AS, SA
4	199340	99874	2.34%	4154	24.04	HONG-GUANWAN, HK
5	16509	95475	2.23%	5456	17.50	AMAZON-02, US
6	22616	83922	1.96%	39	2151.85	ZSCALER-SJC1, US
7	8386	83487	1.95%	20	4174.35	KOCNET, TR
8	40138	82682	1.93%	38	2175.84	MDNET, US
9	216193	69874	1.63%	1	69874.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
10	211894	66212	1.55%	8	8276.50	UNGLEICH-PLACE18, CH
11	216141	57361	1.34%	1	57361.00	LEATYON-AS, IT
12	34600	55709	1.30%	1	55709.00	AS6GNET, PL
13	204508	54800	1.28%	18	3044.44	MLGT, IT
14	28126	50583	1.18%	23	2199.26	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
15	12041	43348	1.01%	228	190.12	AS-AFILIAS1, US
16	28649	40902	0.96%	77	531.19	Desktop Sigmanet Comunicacao Multimidia SA, BR
17	21351	39685	0.93%	17	2334.41	CANALPLUSTELECOM, GP
18	43350	28245	0.66%	24	1176.88	NFORCE, NL
19	265634	27558	0.64%	29	950.28	JR INTERCOM S.R.L, AR
20	205651	27352	0.64%	1	27352.00	CATOFES, CN
21	199553	27106	0.63%	6	4517.67	UNGLEICH-PLACE5, CH
22	42375	26964	0.63%	447	60.32	INET-AS, SC
23	214732	24494	0.57%	3	8164.67	RATATOSKR RATATOSKR, US
24	213092	24481	0.57%	12	2040.08	MARBLEIS, GB
25	139341	24231	0.57%	176	137.68	ACE-AS-AP ACE, SG
26	17072	23885	0.56%	1413	16.90	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
27	38266	23590	0.55%	1388	17.00	VIL-AS-AP Vodafone Idea Ltd, IN
28	268431	23102	0.54%	7	3300.29	netX TI LTDA, BR
29	272708	21937	0.51%	13	1687.46	MARTINS E SA LTDA, BR
30	28598	21270	0.50%	14	1519.29	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
31	262448	21112	0.49%	20	1055.60	DIALHOST INTERNET EIRELI, BR
32	51202	20444	0.48%	12	1703.67	NUXOA, DE
33	10103	19852	0.46%	12	1654.33	HKBN-AS-AP HK Broadband Network Ltd., HK
34	48635	19093	0.45%	21	909.19	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
35	28640	19040	0.45%	15	1269.33	VIPWay Telecomunicacoes Ltda, BR
36	204210	18640	0.44%	4	4660.00	ZEUSPACKAGINGLTD, IE
37	12735	17965	0.42%	422	42.57	ASTURKNET, TR
38	30058	16796	0.39%	143	117.45	FDCSERVERS, US
39	45271	16529	0.39%	1249	13.23	VIL-AS-AP Vodafone Idea Ltd, IN
40	209898	16527	0.39%	2	8263.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
41	203664	16305	0.38%	1	16305.00	LANXING-AS, CN
42	11172	16253	0.38%	2162	7.52	Alestra, S. de R.L. de C.V., MX
43	272053	16164	0.38%	1	16164.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
44	24173	15509	0.36%	261	59.42	NETNAM-AS-AP Netnam Company, VN
45	21664	14717	0.34%	39	377.36	AMZN-BYOASN, US
46	5416	14549	0.34%	1042	13.96	Internet Service Provider, BH
47	214450	14049	0.33%	2	7024.50	OGL-AS, DE
48	36183	13953	0.33%	1644	8.49	AKAMAI-AS, US
49	151810	13545	0.32%	4	3386.25	PHYLAXISINC-AS-AP Phylaxis Korea, KR
50	210564	13433	0.31%	1	13433.00	SWANTZTER-AS, SE
Total		2450378	57.28%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	216193	69874.0	1.63%	1	69874	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	216141	57361.0	1.34%	1	57361	LEATYON-AS, IT
3	34600	55709.0	1.30%	1	55709	AS6GNET, PL
4	205651	27352.0	0.64%	1	27352	CATOFES, CN
5	203664	16305.0	0.38%	1	16305	LANXING-AS, CN
6	272053	16164.0	0.38%	1	16164	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
7	210564	13433.0	0.31%	1	13433	SWANTZTER-AS, SE
8	44297	11315.0	0.26%	1	11315	ICODIA ICODIA NETWORK INTEGRITY, FR
9	30083	11223.0	0.26%	3	11223	AS-30083-US-VELIA-NET, DE
10	328631	8954.0	0.21%	1	8954	BallitoISP, ZA
11	211894	8276.5	1.55%	8	66212	UNGLEICH-PLACE18, CH
12	209898	8263.5	0.39%	2	16527	UNGLEICH-UNGLEICH-UPSTREAM, CH
13	214732	8164.7	0.57%	3	24494	RATATOSKR RATATOSKR, US
14	210305	7472.0	0.17%	1	7472	FRR-TESTLAB, US
15	214450	7024.5	0.33%	2	14049	OGL-AS, DE
16	22616	6993.5	1.96%	39	83922	ZSCALER-SJC1, US
17	271944	6984.0	0.16%	1	6984	AUDIBEL TELECOMUNICACIONES S.A., AR
18	204210	6213.3	0.44%	4	18640	ZEUSPACKAGINGLTD, IE
19	199678	6054.0	0.14%	1	6054	AS-6RW-, RU
20	6535	5422.5	0.25%	8	10845	Telmex Servicios Empresariales S.A., CL
21	141145	5349.0	0.13%	1	5349	GIGANET-AS-ID PT Giga Digital Nusantara, ID
22	264525	5194.0	0.24%	5	10388	Coelho Tecnologia, BR
23	52191	5179.0	0.12%	1	5179	LOCALKA-NET-AS , UA
24	20915	4713.0	0.11%	1	4713	HUNDRED-PERCENT-IT, GB
25	268487	4581.0	0.11%	5	4581	PRISMA TELECOMUNICACOES LTDA. EPP, BR
26	199553	4517.7	0.63%	6	27106	UNGLEICH-PLACE5, CH
27	30362	4416.0	0.10%	1	4416	HPT-ASN, US
28	265314	4319.0	0.10%	1	4319	Toolsoft Tecnologia Ltda, BR
29	21570	4226.0	0.10%	5	4226	ACI-1, CA
30	8386	4174.4	1.95%	20	83487	KOCNET, TR
31	23420	4015.0	0.09%	1	4015	AS-DAVENPRO, US
32	21351	3968.5	0.93%	17	39685	CANALPLUSTELECOM, GP
33	198090	3893.0	0.09%	1	3893	ASLIBRA, IT
34	26445	3785.0	0.09%	1	3785	OWL, US
35	24474	3783.0	0.18%	2	7566	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
36	138535	3722.3	0.26%	3	11167	FURDEVS-AS-AP Wu Qi, CN
37	210796	3586.5	0.17%	2	7173	BJOERN-SCHLEYER Bjoern Schleyer, DE
38	399916	3567.0	0.08%	1	3567	PACKETSTREAM-NAM, US
39	151810	3386.2	0.32%	4	13545	PHYLAXISINC-AS-AP Phylaxis Korea, KR
40	92	3316.0	0.08%	1	3316	CLARKSON-AS, US
41	211645	3312.0	0.08%	1	3312	SPG, DE
42	268431	3300.3	0.54%	7	23102	netX TI LTDA, BR
43	60742	3171.0	0.07%	1	3171	DAWOX, AT
44	204508	3044.4	1.28%	18	54800	MLGT, IT
45	212173	2889.0	0.07%	1	2889	XP, SA
46	52382	2800.0	0.07%	1	2800	Faculte Des Sciences, Universite dEtat dHaiti, HT
47	262901	2793.0	0.13%	2	5586	Vcnet Provedora de Internet Ltda., BR
48	199235	2786.0	0.07%	1	2786	MIKROHALO-HU-AS, HU
49	208824	2733.7	0.19%	3	8201	POLOPRO, ES
50	214160	2646.0	0.06%
Total		471725.5	21.11%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a03:eec0:3212::/48	83854	1.84%	22616 -- ZSCALER-SJC1, US
2	2a13:1c47:c0d0::/44	69874	1.53%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	2a11:f2c0:ffc7::/48	57361	1.26%	216141 -- LEATYON-AS, IT
4	2a0f:7c40::/29	55709	1.22%	34600 -- AS6GNET, PL
5	2a02:1391:5100::/40	39676	0.87%	21351 -- CANALPLUSTELECOM, GP
6	2a0d:2904::/44	27352	0.60%	205651 -- CATOFES, CN
7	2a14:7c0:5300::/48	24486	0.54%	214732 -- RATATOSKR RATATOSKR, US
8	2804:248:100::/40	21209	0.47%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
9	240d:c010:165::/48	19070	0.42%	139341 -- ACE-AS-AP ACE, SG
10	2a0c:b641:302::/47	18624	0.41%	204210 -- ZEUSPACKAGINGLTD, IE
11	2a0a:e5c0:76::/48	16522	0.36%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2a0e:aa07:e044::/48	16305	0.36%	203664 -- LANXING-AS, CN
13	2803:5d10::/32	16164	0.35%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
14	2001:67c:20fc::/48	13433	0.29%	210564 -- SWANTZTER-AS, SE
15	2001:930:108::/48	12342	0.27%	8386 -- KOCNET, TR
16	2001:930:126::/48	12338	0.27%	8386 -- KOCNET, TR
17	2001:930:154::/48	12338	0.27%	8386 -- KOCNET, TR
18	2001:930:114::/48	12337	0.27%	8386 -- KOCNET, TR
19	2001:930:124::/48	12337	0.27%	8386 -- KOCNET, TR
20	2001:930:127::/48	12337	0.27%	8386 -- KOCNET, TR
21	2a05:4140:380::/42	11930	0.26%	204508 -- MLGT, IT
22	2a05:4140:316::/48	11825	0.26%	204508 -- MLGT, IT
23	2a05:4140:304::/48	11820	0.26%	204508 -- MLGT, IT
24	2a05:4140:333::/48	11635	0.26%	204508 -- MLGT, IT
25	2804:511c:8000::/33	11556	0.25%	268431 -- netX TI LTDA, BR
26	2804:511c::/33	11489	0.25%	268431 -- netX TI LTDA, BR
27	2a0b:f8c0::/29	11316	0.25%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
28	2605:de00:bb::/48	11223	0.25%	30083 -- AS-30083-US-VELIA-NET, DE
29	2406:840:e620::/48	11128	0.24%	138535 -- FURDEVS-AS-AP Wu Qi, CN
30	2804:20fc:2000::/36	10384	0.23%	264525 -- Coelho Tecnologia, BR
31	2a0a:5480:4::/48	9317	0.20%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480:1::/48	9308	0.20%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480::/48	9308	0.20%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480:3::/48	9291	0.20%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:2::/48	9272	0.20%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:5480:5::/48	9269	0.20%	211894 -- UNGLEICH-PLACE18, CH
37	2a0a:5480:1ac::/48	9261	0.20%	211894 -- UNGLEICH-PLACE18, CH
38	2c0f:e8a8::/32	8954	0.20%	328631 -- BallitoISP, ZA
39	2a0a:e5c0:45::/48	8829	0.19%	199553 -- UNGLEICH-PLACE5, CH
40	2a0a:e5c0:16::/48	8826	0.19%	199553 -- UNGLEICH-PLACE5, CH
41	2a0a:e5c1:517::/48	8803	0.19%	199553 -- UNGLEICH-PLACE5, CH
42	2a02:b48:83f1::/48	8211	0.18%	39572 -- ADVANCEDHOSTERS-AS, NL
43	2600:6c7f:9370::/44	7743	0.17%	19115 -- CHARTER-19115-DC, US
44	2a13:aac4:1000::/36	7575	0.17%	204508 -- MLGT, IT
45	2a07:e480:110::/48	7472	0.16%	210305 -- FRR-TESTLAB, US
46	2a02:16c8::/35	7199	0.16%	6871 -- PLUSNET UK Internet Service Provider, GB
47	2400:7400:43::/48	7157	0.16%	23736 -- TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
48	2001:678:658::/48	7032	0.15%	214450 -- OGL-AS, DE
49	2a0e:b107:19cb::/48	7017	0.15%	214450 -- OGL-AS, DE
50	2803:6610::/32	6984	0.15%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
Total		834802	18.27%

14 Day BGP Update Statistics Profile: 3-December-2025 00:00 - 17-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	20300954
Number of Prefix Changes:	23882320
Number of Prefix Updates:	20300954
Number of Prefix Withdrawals:	3581366
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	16.78
Average Prefix Updates per second:	19.74
Peak BGP Update Message Rate per second:	28064	(16:48:54 Thu, 4-Dec-2025)
Peak Prefix Update Rate per second:	28064	(16:48:54 Thu, 4-Dec-2025)
Peak Prefix Withdraw Rate per second:	994	(21:09:50 Mon, 15-Dec-2025, )
Number of RIB Prefix Updates:	4276944	(0.21 of recv'd updates)
Number of RIB Prefix Withdrawals:	278039	(0.08 of recv'd withdrawals)
Peak RIB Update Rate per second:	26960	(16:48:54 Thu, 4-Dec-2025)
Peak RIB Withdrawal Rate per second:	357	(07:56:24 Thu, 4-Dec-2025)
Seen Prefix Count:	248836
Updated Prefix Count:	171069
Stable Prefix Count:	77767
Seen Origin AS Count:	35948
Updated Origin AS Count:	30711
Stable Origin AS Count:	5237
Seen Unique Path Count:	163850
Updated Path Count:	146340
Stable Path Count:	17510

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