The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 16 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	512648	11.65%	3968	129.20	VIETEL-AS-AP Viettel Group, VN
2	202256	263296	5.98%	1087	242.22	LAWLIETNET, CN
3	39891	153411	3.49%	2058	74.54	ALJAWWALSTC-AS, SA
4	199340	103884	2.36%	4156	25.00	HONG-GUANWAN, HK
5	22616	102475	2.33%	39	2627.56	ZSCALER-SJC1, US
6	216193	96781	2.20%	1	96781.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
7	16509	94673	2.15%	5447	17.38	AMAZON-02, US
8	40138	83808	1.91%	38	2205.47	MDNET, US
9	216141	83605	1.90%	1	83605.00	LEATYON-AS, IT
10	8386	79338	1.80%	20	3966.90	KOCNET, TR
11	211894	66075	1.50%	8	8259.38	UNGLEICH-PLACE18, CH
12	204508	54603	1.24%	18	3033.50	MLGT, IT
13	42375	46582	1.06%	354	131.59	INET-AS, SC
14	12041	43558	0.99%	228	191.04	AS-AFILIAS1, US
15	21351	38455	0.87%	17	2262.06	CANALPLUSTELECOM, GP
16	28126	37688	0.86%	23	1638.61	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
17	43350	32999	0.75%	24	1374.96	NFORCE, NL
18	272708	30919	0.70%	13	2378.38	MARTINS E SA LTDA, BR
19	268431	29840	0.68%	7	4262.86	netX TI LTDA, BR
20	28649	29455	0.67%	77	382.53	Desktop Sigmanet Comunicacao Multimidia SA, BR
21	214732	29359	0.67%	3	9786.33	RATATOSKR RATATOSKR, US
22	265634	27475	0.62%	29	947.41	JR INTERCOM S.R.L, AR
23	205651	26921	0.61%	1	26921.00	CATOFES, CN
24	48456	25921	0.59%	180	144.01	IPX-AS, AE
25	38266	25403	0.58%	1385	18.34	VIL-AS-AP Vodafone Idea Ltd, IN
26	17072	24854	0.56%	1414	17.58	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
27	139341	24664	0.56%	177	139.34	ACE-AS-AP ACE, SG
28	199553	24585	0.56%	6	4097.50	UNGLEICH-PLACE5, CH
29	28598	24278	0.55%	14	1734.14	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
30	48635	22373	0.51%	21	1065.38	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
31	213092	20842	0.47%	12	1736.83	MARBLEIS, GB
32	10103	19856	0.45%	12	1654.67	HKBN-AS-AP HK Broadband Network Ltd., HK
33	262448	19755	0.45%	20	987.75	DIALHOST INTERNET EIRELI, BR
34	30058	19710	0.45%	143	137.83	FDCSERVERS, US
35	12735	19165	0.44%	417	45.96	ASTURKNET, TR
36	36183	18948	0.43%	1644	11.53	AKAMAI-AS, US
37	28640	18829	0.43%	15	1255.27	VIPWay Telecomunicacoes Ltda, BR
38	50529	18531	0.42%	126	147.07	FN-AS, AE
39	204210	17879	0.41%	4	4469.75	ZEUSPACKAGINGLTD, IE
40	11172	17396	0.40%	2154	8.08	Alestra, S. de R.L. de C.V., MX
41	51202	17111	0.39%	12	1425.92	NUXOA, DE
42	209898	16569	0.38%	2	8284.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
43	24173	16549	0.38%	262	63.16	NETNAM-AS-AP Netnam Company, VN
44	45271	16436	0.37%	1249	13.16	VIL-AS-AP Vodafone Idea Ltd, IN
45	151810	16386	0.37%	4	4096.50	PHYLAXISINC-AS-AP Phylaxis Korea, KR
46	203664	16333	0.37%	1	16333.00	LANXING-AS, CN
47	9287	15856	0.36%	8	1982.00	TIDCC-AS-AP True Internet Data Center Company Limited, TH
48	39686	15745	0.36%	14	1124.64	AS-EUROFIBER, NL
49	2018	15652	0.36%	14	1118.00	TENET-1, ZA
50	61573	15651	0.36%	13	1203.92	Ip Telecom, BR
Total		2593125	58.95%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	216193	96781.0	2.20%	1	96781	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	216141	83605.0	1.90%	1	83605	LEATYON-AS, IT
3	205651	26921.0	0.61%	1	26921	CATOFES, CN
4	203664	16333.0	0.37%	1	16333	LANXING-AS, CN
5	272053	14185.0	0.32%	1	14185	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
6	210564	13242.0	0.30%	1	13242	SWANTZTER-AS, SE
7	30083	12811.0	0.29%	3	12811	AS-30083-US-VELIA-NET, DE
8	44297	11443.0	0.26%	1	11443	ICODIA ICODIA NETWORK INTEGRITY, FR
9	214732	9786.3	0.67%	3	29359	RATATOSKR RATATOSKR, US
10	22616	9315.9	2.33%	39	102475	ZSCALER-SJC1, US
11	328631	9238.0	0.21%	1	9238	BallitoISP, ZA
12	209898	8284.5	0.38%	2	16569	UNGLEICH-UNGLEICH-UPSTREAM, CH
13	211894	8259.4	1.50%	8	66075	UNGLEICH-PLACE18, CH
14	210305	7673.0	0.17%	1	7673	FRR-TESTLAB, US
15	23420	6993.0	0.16%	1	6993	AS-DAVENPRO, US
16	271944	6930.0	0.16%	1	6930	AUDIBEL TELECOMUNICACIONES S.A., AR
17	199678	6127.0	0.14%	1	6127	AS-6RW-, RU
18	204210	5959.7	0.41%	4	17879	ZEUSPACKAGINGLTD, IE
19	214450	5677.0	0.26%	2	11354	OGL-AS, DE
20	92	5571.0	0.13%	1	5571	CLARKSON-AS, US
21	141145	5339.0	0.12%	1	5339	GIGANET-AS-ID PT Giga Digital Nusantara, ID
22	52191	5290.0	0.12%	1	5290	LOCALKA-NET-AS , UA
23	20915	4945.0	0.11%	1	4945	HUNDRED-PERCENT-IT, GB
24	265314	4790.0	0.11%	1	4790	Toolsoft Tecnologia Ltda, BR
25	26445	4463.0	0.10%	1	4463	OWL, US
26	399916	4377.0	0.10%	1	4377	PACKETSTREAM-NAM, US
27	268487	4326.0	0.10%	5	4326	PRISMA TELECOMUNICACOES LTDA. EPP, BR
28	268431	4262.9	0.68%	7	29840	netX TI LTDA, BR
29	30362	4261.0	0.10%	1	4261	HPT-ASN, US
30	21570	4227.0	0.10%	5	4227	ACI-1, CA
31	199553	4097.5	0.56%	6	24585	UNGLEICH-PLACE5, CH
32	151810	4096.5	0.37%	4	16386	PHYLAXISINC-AS-AP Phylaxis Korea, KR
33	8386	3966.9	1.80%	20	79338	KOCNET, TR
34	198090	3878.0	0.09%	1	3878	ASLIBRA, IT
35	21351	3845.5	0.87%	17	38455	CANALPLUSTELECOM, GP
36	264525	3779.0	0.26%	5	11337	Coelho Tecnologia, BR
37	24474	3779.0	0.17%	2	7558	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
38	138535	3774.0	0.26%	3	11322	FURDEVS-AS-AP Wu Qi, CN
39	211645	3232.0	0.07%	1	3232	SPG, DE
40	9287	3171.2	0.36%	8	15856	TIDCC-AS-AP True Internet Data Center Company Limited, TH
41	266136	3124.3	0.21%	3	9373	R.A INTERNET, BR
42	208824	3079.3	0.21%	3	9238	POLOPRO, ES
43	204508	3033.5	1.24%	18	54603	MLGT, IT
44	199235	2800.0	0.06%	1	2800	MIKROHALO-HU-AS, HU
45	52382	2762.0	0.06%	1	2762	Faculte Des Sciences, Universite dEtat dHaiti, HT
46	262901	2744.0	0.12%	2	5488	Vcnet Provedora de Internet Ltda., BR
47	208948	2614.7	0.18%	3	7844	RECYCLED-CLOUD-AS, CH
48	60742	2596.0	0.06%	1	2596	DAWOX, AT
49	214160	2585.0	0.06%	2	2585	SHREE, GB
50	266030	2494.2	0.23%
Total		476869.3	21.65%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a03:eec0:3212::/48	102425	2.19%	22616 -- ZSCALER-SJC1, US
2	2a13:1c47:c0d0::/44	96781	2.07%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	2a11:f2c0:ffc7::/48	83605	1.79%	216141 -- LEATYON-AS, IT
4	2a02:1391:5100::/40	38443	0.82%	21351 -- CANALPLUSTELECOM, GP
5	2a14:7c0:5300::/48	29351	0.63%	214732 -- RATATOSKR RATATOSKR, US
6	2a0d:2904::/44	26921	0.58%	205651 -- CATOFES, CN
7	2804:248:100::/40	24243	0.52%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
8	240d:c010:165::/48	18811	0.40%	139341 -- ACE-AS-AP ACE, SG
9	2a0c:b641:302::/47	17873	0.38%	204210 -- ZEUSPACKAGINGLTD, IE
10	2a0a:e5c0:76::/48	16563	0.35%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
11	2a0e:aa07:e044::/48	16334	0.35%	203664 -- LANXING-AS, CN
12	2804:511c:8000::/33	14926	0.32%	268431 -- netX TI LTDA, BR
13	2804:511c::/33	14847	0.32%	268431 -- netX TI LTDA, BR
14	2803:5d10::/32	14185	0.30%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
15	2001:67c:20fc::/48	13242	0.28%	210564 -- SWANTZTER-AS, SE
16	2605:de00:bb::/48	12811	0.27%	30083 -- AS-30083-US-VELIA-NET, DE
17	2a05:4140:380::/42	11866	0.25%	204508 -- MLGT, IT
18	2a05:4140:316::/48	11807	0.25%	204508 -- MLGT, IT
19	2a05:4140:304::/48	11760	0.25%	204508 -- MLGT, IT
20	2a05:4140:333::/48	11644	0.25%	204508 -- MLGT, IT
21	2a0b:f8c0::/29	11443	0.24%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
22	2804:20fc:2000::/36	11331	0.24%	264525 -- Coelho Tecnologia, BR
23	2406:840:e620::/48	11284	0.24%	138535 -- FURDEVS-AS-AP Wu Qi, CN
24	2001:930:154::/48	11277	0.24%	8386 -- KOCNET, TR
25	2001:930:114::/48	11277	0.24%	8386 -- KOCNET, TR
26	2001:930:124::/48	11149	0.24%	8386 -- KOCNET, TR
27	2001:930:127::/48	11144	0.24%	8386 -- KOCNET, TR
28	2001:930:126::/48	11143	0.24%	8386 -- KOCNET, TR
29	2001:930:108::/48	11141	0.24%	8386 -- KOCNET, TR
30	2a02:b48:83f1::/48	11021	0.24%	39572 -- ADVANCEDHOSTERS-AS, NL
31	2a0a:5480:4::/48	9331	0.20%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480:1::/48	9322	0.20%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480::/48	9322	0.20%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480:3::/48	9306	0.20%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:5::/48	9284	0.20%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:5480:2::/48	9284	0.20%	211894 -- UNGLEICH-PLACE18, CH
37	2a0a:5480:1ac::/48	9278	0.20%	211894 -- UNGLEICH-PLACE18, CH
38	2c0f:e8a8::/32	9238	0.20%	328631 -- BallitoISP, ZA
39	2400:7400:43::/48	8143	0.17%	23736 -- TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
40	2a0a:e5c1:517::/48	7924	0.17%	199553 -- UNGLEICH-PLACE5, CH
41	2a0a:e5c0:45::/48	7924	0.17%	199553 -- UNGLEICH-PLACE5, CH
42	2a0a:e5c0:16::/48	7923	0.17%	199553 -- UNGLEICH-PLACE5, CH
43	2a0d:d9c3::/32	7830	0.17%	208948 -- RECYCLED-CLOUD-AS, CH
44	2a07:e480:110::/48	7673	0.16%	210305 -- FRR-TESTLAB, US
45	2600:6c7f:9370::/44	7523	0.16%	19115 -- CHARTER-19115-DC, US
46	2a13:aac4:1000::/36	7513	0.16%	204508 -- MLGT, IT
47	2a02:16c8::/35	7198	0.15%	6871 -- PLUSNET UK Internet Service Provider, GB
48	2605:9c40::/32	6993	0.15%	23420 -- AS-DAVENPRO, US
49	2803:6610::/32	6930	0.15%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
50	2402:e580:74b8::/48	6805	0.15%	40138 -- MDNET, US
Total		865392	18.50%

14 Day BGP Update Statistics Profile: 1-December-2025 00:00 - 15-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	20597261
Number of Prefix Changes:	24280215
Number of Prefix Updates:	20597261
Number of Prefix Withdrawals:	3682954
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	17.03
Average Prefix Updates per second:	20.07
Peak BGP Update Message Rate per second:	17265	(00:00:22 Wed, 3-Dec-2025)
Peak Prefix Update Rate per second:	17265	(00:00:22 Wed, 3-Dec-2025)
Peak Prefix Withdraw Rate per second:	994	(21:09:50 Mon, 15-Dec-2025, )
Number of RIB Prefix Updates:	4399277	(0.21 of recv'd updates)
Number of RIB Prefix Withdrawals:	274694	(0.07 of recv'd withdrawals)
Peak RIB Update Rate per second:	16231	(00:00:22 Wed, 3-Dec-2025)
Peak RIB Withdrawal Rate per second:	332	(23:11:39 Sun, 7-Dec-2025)
Seen Prefix Count:	248300
Updated Prefix Count:	168391
Stable Prefix Count:	79909
Seen Origin AS Count:	35946
Updated Origin AS Count:	30627
Stable Origin AS Count:	5319
Seen Unique Path Count:	162353
Updated Path Count:	144272
Stable Path Count:	18081

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