The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 26 December 2025 01:17 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	24158	2512652	36.65%	504	4985.42	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
2	7552	438693	6.40%	3977	110.31	VIETEL-AS-AP Viettel Group, VN
3	34600	237896	3.47%	1	237896.00	AS6GNET, PL
4	202256	204740	2.99%	770	265.90	LAWLIETNET, CN
5	38841	125553	1.83%	38	3304.03	KBRO-AS-TW kbro CO. Ltd., TW
6	199340	105458	1.54%	2750	38.35	HONG-GUANWAN, HK
7	16509	100740	1.47%	5426	18.57	AMAZON-02, US
8	28126	100108	1.46%	26	3850.31	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
9	40138	86338	1.26%	38	2272.05	MDNET, US
10	28649	80229	1.17%	77	1041.94	Desktop Sigmanet Comunicacao Multimidia SA, BR
11	8386	74083	1.08%	20	3704.15	KOCNET, TR
12	39891	73272	1.07%	2058	35.60	ALJAWWALSTC-AS, SA
13	211894	68365	1.00%	8	8545.62	UNGLEICH-PLACE18, CH
14	24164	50485	0.74%	12	4207.08	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
15	204508	49530	0.72%	18	2751.67	MLGT, IT
16	21351	45031	0.66%	17	2648.88	CANALPLUSTELECOM, GP
17	216193	37847	0.55%	1	37847.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
18	28458	36296	0.53%	2	18148.00	IENTC S DE RL DE CV, MX
19	12041	33408	0.49%	228	146.53	AS-AFILIAS1, US
20	38266	32204	0.47%	1389	23.19	VIL-AS-AP Vodafone Idea Ltd, IN
21	9674	31308	0.46%	38	823.89	FET-TW Far EastTone Telecommunication Co., Ltd., TW
22	199553	28594	0.42%	6	4765.67	UNGLEICH-PLACE5, CH
23	9924	28375	0.41%	11	2579.55	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
24	205651	27389	0.40%	1	27389.00	CATOFES, CN
25	216141	27075	0.39%	1	27075.00	LEATYON-AS, IT
26	28598	26998	0.39%	14	1928.43	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
27	139341	22013	0.32%	177	124.37	ACE-AS-AP ACE, SG
28	9287	21924	0.32%	8	2740.50	TIDCC-AS-AP True Internet Data Center Company Limited, TH
29	213092	21687	0.32%	11	1971.55	MARBLEIS, GB
30	262448	21531	0.31%	20	1076.55	DIALHOST INTERNET EIRELI, BR
31	203664	19414	0.28%	1	19414.00	LANXING-AS, CN
32	204210	18222	0.27%	4	4555.50	ZEUSPACKAGINGLTD, IE
33	134094	17909	0.26%	6	2984.83	SERVERFIELD-AS Serverfield Co., Ltd., TW
34	214450	17788	0.26%	2	8894.00	OGL-AS, DE
35	45271	17585	0.26%	1250	14.07	VIL-AS-AP Vodafone Idea Ltd, IN
36	5416	16605	0.24%	1042	15.94	Internet Service Provider, BH
37	58821	16478	0.24%	4	4119.50	IDNIC-LJN-AS-ID PT Lintas Jaringan Nusantara, ID
38	209898	16450	0.24%	2	8225.00	UNGLEICH-UNGLEICH-UPSTREAM, CH
39	136873	15824	0.23%	8	1978.00	MEGADATA-AS-ID MEGADATA-ISP, ID
40	36183	15518	0.23%	1644	9.44	AKAMAI-AS, US
41	205157	14867	0.22%	5	2973.40	CIDNOC, US
42	18429	14647	0.21%	3	4882.33	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
43	24165	14480	0.21%	3	4826.67	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
44	24173	14266	0.21%	261	54.66	NETNAM-AS-AP Netnam Company, VN
45	210564	14258	0.21%	1	14258.00	SWANTZTER-AS, SE
46	21664	14149	0.21%	39	362.79	AMZN-BYOASN, US
47	10103	13140	0.19%	12	1095.00	HKBN-AS-AP HK Broadband Network Ltd., HK
48	214732	12884	0.19%	3	4294.67	RATATOSKR RATATOSKR, US
49	400006	12765	0.19%	1	12765.00	DIGITAL-MONKS-01, US
50	215828	12198	0.18%	17	717.53	TMW-GLOBAL-NETWORKS TMW Global Networks, DE
Total		5059269	73.82%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	34600	237896.0	3.47%	1	237896	AS6GNET, PL
2	216193	37847.0	0.55%	1	37847	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	205651	27389.0	0.40%	1	27389	CATOFES, CN
4	216141	27075.0	0.39%	1	27075	LEATYON-AS, IT
5	203664	19414.0	0.28%	1	19414	LANXING-AS, CN
6	28458	18148.0	0.53%	2	36296	IENTC S DE RL DE CV, MX
7	210564	14258.0	0.21%	1	14258	SWANTZTER-AS, SE
8	400006	12765.0	0.19%	1	12765	DIGITAL-MONKS-01, US
9	214450	8894.0	0.26%	2	17788	OGL-AS, DE
10	272053	8681.0	0.13%	1	8681	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
11	211894	8545.6	1.00%	8	68365	UNGLEICH-PLACE18, CH
12	328631	8319.0	0.12%	1	8319	BallitoISP, ZA
13	209898	8225.0	0.24%	2	16450	UNGLEICH-UNGLEICH-UPSTREAM, CH
14	151650	7177.0	0.10%	1	7177	SWITCHFIBER-AS-AP Switch Fiber, PH
15	271944	6964.0	0.10%	1	6964	AUDIBEL TELECOMUNICACIONES S.A., AR
16	44297	6107.0	0.09%	1	6107	ICODIA ICODIA NETWORK INTEGRITY, FR
17	204210	6074.0	0.27%	4	18222	ZEUSPACKAGINGLTD, IE
18	199678	5873.0	0.09%	1	5873	AS-6RW-, RU
19	6535	5841.5	0.17%	8	11683	Telmex Servicios Empresariales S.A., CL
20	17420	5477.0	0.08%	1	5477	ACEREDC-TW Acer e-Enabling Data Center, Inc., TW
21	52191	5469.0	0.08%	1	5469	LOCALKA-NET-AS , UA
22	131143	5411.0	0.08%	1	5411	CHINATRUST-AS-TW Chinatrust Commercial Bank, TW
23	24158	5312.2	36.65%	504	2512652	TAIWANMOBILE-AS Taiwan Mobile Co., Ltd., TW
24	18429	4882.3	0.21%	3	14647	EXTRALAN-TW Extra-Lan Technologies Co., LTD, TW
25	24165	4826.7	0.21%	3	14480	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
26	199553	4765.7	0.42%	6	28594	UNGLEICH-PLACE5, CH
27	20915	4691.0	0.07%	1	4691	HUNDRED-PERCENT-IT, GB
28	24164	4589.5	0.74%	12	50485	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
29	30083	4547.0	0.07%	3	4547	AS-30083-US-VELIA-NET, DE
30	9287	4384.8	0.32%	8	21924	TIDCC-AS-AP True Internet Data Center Company Limited, TH
31	214732	4294.7	0.19%	3	12884	RATATOSKR RATATOSKR, US
32	58821	4119.5	0.24%	4	16478	IDNIC-LJN-AS-ID PT Lintas Jaringan Nusantara, ID
33	21351	4093.7	0.66%	17	45031	CANALPLUSTELECOM, GP
34	9924	4053.6	0.41%	11	28375	TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
35	28126	4004.3	1.46%	26	100108	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
36	198090	3913.0	0.06%	1	3913	ASLIBRA, IT
37	138535	3863.7	0.17%	3	11591	FURDEVS-AS-AP Wu Qi, CN
38	24474	3767.5	0.11%	2	7535	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
39	8386	3704.2	1.08%	20	74083	KOCNET, TR
40	21570	3623.0	0.05%	5	3623	ACI-1, CA
41	38841	3487.6	1.83%	38	125553	KBRO-AS-TW kbro CO. Ltd., TW
42	211645	3433.0	0.05%	1	3433	SPG, DE
43	24163	3282.7	0.14%	3	9848	UBBNET-AS-TW UNION BROADBAND NETWORK, TW
44	210796	3187.0	0.09%	2	6374	BJOERN-SCHLEYER Bjoern Schleyer, DE
45	30362	3120.0	0.05%	1	3120	HPT-ASN, US
46	9671	3081.5	0.09%	2	6163	TRADEVAN-AS-AP Trade-Van Informaiton Services Co., TW
47	141145	3070.0	0.04%	1	3070	GIGANET-AS-ID PT Giga Digital Nusantara, ID
48	134094	2984.8	0.26%	6	17909	SERVERFIELD-AS Serverfield Co., Ltd., TW
49	205157	2973.4	0.22%	5	14867	CIDNOC, US
50	53147	2941.5	0.09%
Total		600848	54.81%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:7c40::/29	237896	3.34%	34600 -- AS6GNET, PL
2	2a02:1391:5100::/40	45013	0.63%	21351 -- CANALPLUSTELECOM, GP
3	2a13:1c47:c0d0::/44	37847	0.53%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
4	2806:202::/32	36288	0.51%	28458 -- IENTC S DE RL DE CV, MX
5	2a0d:2904::/44	27389	0.38%	205651 -- CATOFES, CN
6	2a11:f2c0:ffc7::/48	27075	0.38%	216141 -- LEATYON-AS, IT
7	2804:248:100::/40	26937	0.38%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
8	2a0e:aa07:e044::/48	19414	0.27%	203664 -- LANXING-AS, CN
9	240d:c010:165::/48	18521	0.26%	139341 -- ACE-AS-AP ACE, SG
10	2a0c:b641:302::/47	18203	0.26%	204210 -- ZEUSPACKAGINGLTD, IE
11	2a0a:e5c0:76::/48	16447	0.23%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2001:67c:20fc::/48	14258	0.20%	210564 -- SWANTZTER-AS, SE
13	2a14:7c0:5300::/48	12880	0.18%	214732 -- RATATOSKR RATATOSKR, US
14	2606:7040::/32	12765	0.18%	400006 -- DIGITAL-MONKS-01, US
15	2406:840:e620::/48	11533	0.16%	138535 -- FURDEVS-AS-AP Wu Qi, CN
16	2a05:4140:316::/48	10631	0.15%	204508 -- MLGT, IT
17	2a05:4140:304::/48	10453	0.15%	204508 -- MLGT, IT
18	2001:930:127::/48	10436	0.15%	8386 -- KOCNET, TR
19	2001:930:114::/48	10429	0.15%	8386 -- KOCNET, TR
20	2001:930:124::/48	10427	0.15%	8386 -- KOCNET, TR
21	2001:930:108::/48	10427	0.15%	8386 -- KOCNET, TR
22	2001:930:126::/48	10426	0.15%	8386 -- KOCNET, TR
23	2001:930:154::/48	10425	0.15%	8386 -- KOCNET, TR
24	2a05:4140:380::/42	10415	0.15%	204508 -- MLGT, IT
25	2a05:4140:333::/48	10262	0.14%	204508 -- MLGT, IT
26	2a14:3f87:9800::/38	9593	0.13%	64289 -- MACARNE, US
27	2a0a:5480::/48	9350	0.13%	211894 -- UNGLEICH-PLACE18, CH
28	2a0a:5480:4::/48	9349	0.13%	211894 -- UNGLEICH-PLACE18, CH
29	2a0a:5480:1::/48	9346	0.13%	211894 -- UNGLEICH-PLACE18, CH
30	2a0a:5480:3::/48	9336	0.13%	211894 -- UNGLEICH-PLACE18, CH
31	2a0a:5480:1ac::/48	9312	0.13%	211894 -- UNGLEICH-PLACE18, CH
32	2a0a:5480:5::/48	9311	0.13%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:2::/48	9311	0.13%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:e5c1:517::/48	9242	0.13%	199553 -- UNGLEICH-PLACE5, CH
35	2a0a:e5c0:45::/48	9216	0.13%	199553 -- UNGLEICH-PLACE5, CH
36	2a0a:e5c0:16::/48	9214	0.13%	199553 -- UNGLEICH-PLACE5, CH
37	2001:678:658::/48	8971	0.13%	214450 -- OGL-AS, DE
38	2a0e:b107:19cb::/48	8819	0.12%	214450 -- OGL-AS, DE
39	2803:5d10::/32	8681	0.12%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
40	2c0f:e8a8::/32	8319	0.12%	328631 -- BallitoISP, ZA
41	2a13:aac4:1000::/36	7718	0.11%	204508 -- MLGT, IT
42	2a0d:2a00:1::/48	7432	0.10%	205157 -- CIDNOC, US
43	2a0d:2a00:2::/48	7429	0.10%	205157 -- CIDNOC, US
44	2600:6c7f:9370::/44	7367	0.10%	19115 -- CHARTER-19115-DC, US
45	2401:2260::/32	7177	0.10%	151650 -- SWITCHFIBER-AS-AP Switch Fiber, PH
46	2a02:16c8::/35	7077	0.10%	6871 -- PLUSNET UK Internet Service Provider, GB
47	2803:6610::/32	6964	0.10%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
48	2001:4541:9000::/36	6595	0.09%	9924 -- TFN-TW Taiwan Fixed Network, Telco and Network Service Provider., TW
49	2605:9cc0:c0e::/48	6583	0.09%	21664 -- AMZN-BYOASN, US 8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
50	2402:e580:74b8::/48	6502	0.09%	40138 -- MDNET, US
Total		875011	12.28%

14 Day BGP Update Statistics Profile: 11-December-2025 00:00 - 25-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	23698131
Number of Prefix Changes:	26865779
Number of Prefix Updates:	23698131
Number of Prefix Withdrawals:	3167648
Average Prefixes per BGP Update:	1.13
Average BGP Update Messages per second:	19.59
Average Prefix Updates per second:	22.21
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:	994	(21:09:50 Mon, 15-Dec-2025, )
Number of RIB Prefix Updates:	6856307	(0.29 of recv'd updates)
Number of RIB Prefix Withdrawals:	270846	(0.09 of recv'd withdrawals)
Peak RIB Update Rate per second:	17469	(14:51:10 Sun, 14-Dec-2025)
Peak RIB Withdrawal Rate per second:	501	(18:03:24 Thu, 18-Dec-2025)
Seen Prefix Count:	247876
Updated Prefix Count:	177313
Stable Prefix Count:	70563
Seen Origin AS Count:	35967
Updated Origin AS Count:	30232
Stable Origin AS Count:	5735
Seen Unique Path Count:	165636
Updated Path Count:	145540
Stable Path Count:	20096

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