The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 3 January 2026 01:17 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	24158	2291897	29.94%	504	4547.41	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
2	34600	1333134	17.42%	1	1333134.00	AS6GNET, PL
3	7552	541499	7.07%	3977	136.16	VIETEL-AS-AP Viettel Group, VN
4	202256	209159	2.73%	770	271.64	LAWLIETNET, CN
5	38841	180349	2.36%	38	4746.03	KBRO-AS-TW kbro CO. Ltd., TW
6	199340	123385	1.61%	3816	32.33	HONG-GUANWAN, HK
7	28126	109457	1.43%	26	4209.88	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
8	39891	103249	1.35%	2058	50.17	ALJAWWALSTC-AS, SA
9	16509	85013	1.11%	5329	15.95	AMAZON-02, US
10	40138	84370	1.10%	37	2280.27	MDNET, US
11	24164	72935	0.95%	12	6077.92	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
12	28649	71309	0.93%	77	926.09	Desktop Sigmanet Comunicacao Multimidia SA, BR
13	211894	67671	0.88%	8	8458.88	UNGLEICH-PLACE18, CH
14	21351	45734	0.60%	17	2690.24	CANALPLUSTELECOM, GP
15	9924	42673	0.56%	11	3879.36	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
16	28458	42155	0.55%	2	21077.50	IENTC S DE RL DE CV, MX
17	396509	34550	0.45%	12	2879.17	LETSCLOUD, US
18	8386	33615	0.44%	20	1680.75	KOCNET, TR
19	199553	33409	0.44%	6	5568.17	UNGLEICH-PLACE5, CH
20	134094	27205	0.36%	6	4534.17	SERVERFIELD-AS Serverfield Co., Ltd., TW
21	9674	27131	0.35%	38	713.97	FET-TW Far EastTone Telecommunication Co., Ltd., TW
22	205651	26721	0.35%	1	26721.00	CATOFES, CN
23	39900	25555	0.33%	3	8518.33	GOODTEC, LV
24	274743	25174	0.33%	7	3596.29	FASTWEB TELECOMUNICACOES, BR
25	28598	24699	0.32%	14	1764.21	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
26	38266	23098	0.30%	1378	16.76	VIL-AS-AP Vodafone Idea Ltd, IN
27	204508	22949	0.30%	18	1274.94	MLGT, IT
28	18429	21451	0.28%	3	7150.33	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
29	262448	21330	0.28%	11	1939.09	DIALHOST INTERNET EIRELI, BR
30	24165	20983	0.27%	3	6994.33	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
31	139341	20783	0.27%	178	116.76	ACE-AS-AP ACE, SG
32	10103	20144	0.26%	12	1678.67	HKBN-AS-AP HK Broadband Network Ltd., HK
33	48635	19198	0.25%	21	914.19	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
34	204210	19167	0.25%	4	4791.75	ZEUSPACKAGINGLTD, IE
35	12252	18986	0.25%	456	41.64	America Movil Peru S.A.C., PE
36	213092	18967	0.25%	12	1580.58	MARBLEIS, GB
37	45271	18869	0.25%	1250	15.10	VIL-AS-AP Vodafone Idea Ltd, IN
38	30058	18627	0.24%	143	130.26	FDCSERVERS, US
39	214450	18088	0.24%	2	9044.00	OGL-AS, DE
40	203664	18070	0.24%	1	18070.00	LANXING-AS, CN
41	24163	17566	0.23%	3	5855.33	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
42	205157	16879	0.22%	5	3375.80	CIDNOC, US
43	209898	16503	0.22%	2	8251.50	UNGLEICH-UNGLEICH-UPSTREAM, CH
44	9287	16128	0.21%	8	2016.00	TIDCC-AS-AP True Internet Data Center Company Limited, TH
45	61573	15227	0.20%	13	1171.31	Ip Telecom, BR
46	264525	14859	0.19%	5	2971.80	Coelho Tecnologia, BR
47	151810	14850	0.19%	4	3712.50	PHYLAXISINC-AS-AP Phylaxis Korea, KR
48	210564	14670	0.19%	1	14670.00	SWANTZTER-AS, SE
49	39686	14168	0.19%	14	1012.00	AS-EUROFIBER, NL
50	24173	14003	0.18%	262	53.45	NETNAM-AS-AP Netnam Company, VN
Total		6117611	79.91%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	1333134.0	17.42%	1	1333134	AS6GNET, PL
2	205651	26721.0	0.35%	1	26721	CATOFES, CN
3	28458	21077.5	0.55%	2	42155	IENTC S DE RL DE CV, MX
4	204210	19167.0	0.25%	4	19167	ZEUSPACKAGINGLTD, IE
5	203664	18070.0	0.24%	1	18070	LANXING-AS, CN
6	264525	14859.0	0.19%	5	14859	Coelho Tecnologia, BR
7	210564	14670.0	0.19%	1	14670	SWANTZTER-AS, SE
8	151650	13213.0	0.17%	1	13213	SWITCHFIBER-AS-AP Switch Fiber, PH
9	28598	12349.5	0.32%	14	24699	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
10	21351	11433.5	0.60%	17	45734	CANALPLUSTELECOM, GP
11	30083	9973.0	0.13%	3	9973	AS-30083-US-VELIA-NET, DE
12	328631	9604.0	0.13%	1	9604	BallitoISP, ZA
13	214450	9044.0	0.24%	2	18088	OGL-AS, DE
14	39900	8518.3	0.33%	3	25555	GOODTEC, LV
15	211894	8458.9	0.88%	8	67671	UNGLEICH-PLACE18, CH
16	209898	8251.5	0.22%	2	16503	UNGLEICH-UNGLEICH-UPSTREAM, CH
17	131143	8052.0	0.11%	1	8052	CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
18	17420	7992.0	0.10%	1	7992	ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
19	18429	7150.3	0.28%	3	21451	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
20	24165	6994.3	0.27%	3	20983	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
21	271944	6702.0	0.09%	1	6702	AUDIBEL TELECOMUNICACIONES S.A., AR
22	24164	6630.5	0.95%	12	72935	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
23	9924	6096.1	0.56%	11	42673	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
24	24163	5855.3	0.23%	3	17566	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
25	147039	5714.0	0.07%	1	5714	CYPREA-AS-AP Cyprea Private Limited, MV
26	199553	5568.2	0.44%	6	33409	UNGLEICH-PLACE5, CH
27	208948	5387.0	0.07%	3	5387	RECYCLED-CLOUD-AS, CH
28	38841	5152.8	2.36%	38	180349	KBRO-AS-TW kbro CO. Ltd., TW
29	6535	4898.5	0.13%	8	9797	Telmex Servicios Empresariales S.A., CL
30	24158	4547.4	29.94%	504	2291897	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
31	134094	4534.2	0.36%	6	27205	SERVERFIELD-AS Serverfield Co., Ltd., TW
32	20915	4495.0	0.06%	1	4495	HUNDRED-PERCENT-IT, GB
33	28126	4378.3	1.43%	26	109457	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
34	138535	4334.7	0.17%	3	13004	FURDEVS-AS-AP Wu Qi, CN
35	9671	4213.0	0.11%	2	8426	TRADEVAN-AS-AP Trade-Van Informaiton Services Co., TW
36	198090	3929.0	0.05%	1	3929	ASLIBRA, IT
37	396509	3838.9	0.45%	12	34550	LETSCLOUD, US
38	199678	3809.0	0.05%	1	3809	AS-6RW-, RU
39	21570	3769.0	0.05%	5	3769	ACI-1, CA
40	151810	3712.5	0.19%	4	14850	PHYLAXISINC-AS-AP Phylaxis Korea, KR
41	274743	3596.3	0.33%	7	25174	FASTWEB TELECOMUNICACOES, BR
42	211645	3459.0	0.05%	1	3459	SPG, DE
43	210796	3440.5	0.09%	2	6881	BJOERN-SCHLEYER Bjoern Schleyer, DE
44	205157	3375.8	0.22%	5	16879	CIDNOC, US
45	52191	3223.0	0.04%	1	3223	LOCALKA-NET-AS , UA
46	28649	2852.4	0.93%	77	71309	Desktop Sigmanet Comunicacao Multimidia SA, BR
47	53147	2839.5	0.07%	2	5679	FONTES SOLUCOES TECNOLOGICAS LTDA, BR
48	40138	2812.3	1.10%	37	84370	MDNET, US
49	30362	2812.0	0.04%	1	2812	HPT-ASN, US
50	199235	2795.0	0.04%
Total		1697504	63.64%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	1333134	16.86%	34600 -- AS6GNET, PL
2	2a02:1391:5100::/40	45718	0.58%	21351 -- CANALPLUSTELECOM, GP
3	2806:202::/32	42104	0.53%	28458 -- IENTC S DE RL DE CV, MX
4	2a0d:2904::/44	26721	0.34%	205651 -- CATOFES, CN
5	2804:248:100::/40	24676	0.31%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
6	2a0c:b641:302::/47	19167	0.24%	204210 -- ZEUSPACKAGINGLTD, IE
7	2a0e:aa07:e044::/48	18070	0.23%	203664 -- LANXING-AS, CN
8	240d:c010:165::/48	17641	0.22%	139341 -- ACE-AS-AP ACE, SG
9	2a0a:e5c0:76::/48	16501	0.21%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
10	2804:20fc:2000::/36	14859	0.19%	264525 -- Coelho Tecnologia, BR
11	2001:67c:20fc::/48	14670	0.19%	210564 -- SWANTZTER-AS, SE
12	2401:2260::/32	13213	0.17%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
13	2406:840:e620::/48	12970	0.16%	138535 -- FURDEVS-AS-AP Wu Qi, CN
14	2a14:3f87:9800::/38	10853	0.14%	64289 -- MACARNE, US
15	2001:4541:9000::/36	10107	0.13%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
16	2605:de00:bb::/48	9973	0.13%	30083 -- AS-30083-US-VELIA-NET, DE
17	2c0f:e8a8::/32	9604	0.12%	328631 -- BallitoISP, ZA
18	2a0a:e5c1:517::/48	9453	0.12%	199553 -- UNGLEICH-PLACE5, CH
19	2a0a:e5c0:45::/48	9421	0.12%	199553 -- UNGLEICH-PLACE5, CH
20	2a0a:e5c0:16::/48	9420	0.12%	199553 -- UNGLEICH-PLACE5, CH
21	2a0a:5480:1::/48	9354	0.12%	211894 -- UNGLEICH-PLACE18, CH
22	2a0a:5480:4::/48	9353	0.12%	211894 -- UNGLEICH-PLACE18, CH
23	2a0a:5480::/48	9351	0.12%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:5::/48	9340	0.12%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:1ac::/48	9339	0.12%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:3::/48	9335	0.12%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:5480:2::/48	9326	0.12%	211894 -- UNGLEICH-PLACE18, CH
28	2403:82c0::/32	9136	0.12%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
29	2a0e:b107:19cb::/48	9126	0.12%	214450 -- OGL-AS, DE
30	2401:f540:7::/48	9068	0.11%	134094 -- SERVERFIELD-AS Serverfield Co., Ltd., TW
31	2401:f540:2::/48	9067	0.11%	134094 -- SERVERFIELD-AS Serverfield Co., Ltd., TW
32	2401:f540:1::/48	9062	0.11%	134094 -- SERVERFIELD-AS Serverfield Co., Ltd., TW
33	2001:678:658::/48	8962	0.11%	214450 -- OGL-AS, DE
34	2a12:b2c0:6::/48	8521	0.11%	39900 -- GOODTEC, LV
35	2a0b:88c0:48::/48	8517	0.11%	39900 -- GOODTEC, LV
36	2a13:6c40::/29	8517	0.11%	39900 -- GOODTEC, LV
37	2a0d:2a00:1::/48	8437	0.11%	205157 -- CIDNOC, US
38	2a0d:2a00:2::/48	8436	0.11%	205157 -- CIDNOC, US
39	2600:6c7f:9370::/44	8410	0.11%	19115 -- CHARTER-19115-DC, US
40	2405:4500:d::/48	8347	0.11%	9671 -- TRADEVAN-AS-AP Trade-Van Informaiton Services Co., TW
41	2405:3300::/32	8052	0.10%	131143 -- CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
42	2402:7500:faff::/48	8016	0.10%	24158 -- TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
43	2403:9f00::/32	7992	0.10%	17420 -- ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
44	2407:4900:1000::/36	7894	0.10%	18429 -- EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
45	2404:2280:10a::/48	7864	0.10%	24429 -- TAOBAO Zhejiang Taobao Network Co.,Ltd, CN
46	2001:c50::/32	7768	0.10%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
47	2a13:aac4:1000::/36	7747	0.10%	204508 -- MLGT, IT
48	2407:4b00:4000::/36	7694	0.10%	24163 -- UBBNET-AS-TW UNION BROADBAND NETWORK, TW
49	2a03:90c0:7a0::/44	7675	0.10%	59437 -- NORTHERNDATA, DE
50	2407:4b00:6000::/36	7486	0.09%	24165 -- UBBNET-AS-TW UNION BROADBAND NETWORK, TW
Total		1925467	24.39%

14 Day BGP Update Statistics Profile: 19-December-2025 00:00 - 2-January-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	22178011
Number of Prefix Changes:	25131464
Number of Prefix Updates:	22178011
Number of Prefix Withdrawals:	2953453
Average Prefixes per BGP Update:	1.13
Average BGP Update Messages per second:	18.33
Average Prefix Updates per second:	20.78
Peak BGP Update Message Rate per second:	28913	(22:39:19 Sun, 21-Dec-2025)
Peak Prefix Update Rate per second:	28913	(22:39:19 Sun, 21-Dec-2025)
Peak Prefix Withdraw Rate per second:	872	(21:39:32 Tue, 23-Dec-2025, )
Number of RIB Prefix Updates:	7654357	(0.35 of recv'd updates)
Number of RIB Prefix Withdrawals:	251117	(0.09 of recv'd withdrawals)
Peak RIB Update Rate per second:	17027	(22:39:19 Sun, 21-Dec-2025)
Peak RIB Withdrawal Rate per second:	420	(03:23:39 Fri, 26-Dec-2025)
Seen Prefix Count:	248479
Updated Prefix Count:	139384
Stable Prefix Count:	109095
Seen Origin AS Count:	35954
Updated Origin AS Count:	27451
Stable Origin AS Count:	8503
Seen Unique Path Count:	149522
Updated Path Count:	126648
Stable Path Count:	22874

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