The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 21 November 2025 01:18 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	214028	640743	11.90%	1	640743.00	MAHDI-UMRAN, ID
2	202256	461994	8.58%	1174	393.52	LAWLIETNET, CN
3	7552	325741	6.05%	3958	82.30	VIETEL-AS-AP Viettel Group, VN
4	199340	138294	2.57%	4181	33.08	HONG-GUANWAN, HK
5	39891	130654	2.43%	2058	63.49	ALJAWWALSTC-AS, SA
6	22616	127350	2.37%	37	3441.89	ZSCALER-SJC1, US
7	42375	124940	2.32%	260	480.54	INET-AS, SC
8	16509	107558	2.00%	5513	19.51	AMAZON-02, US
9	48456	88084	1.64%	180	489.36	IPX-AS, AE
10	40138	73767	1.37%	41	1799.20	MDNET, US
11	50529	61898	1.15%	126	491.25	FN-AS, AE
12	38266	61712	1.15%	1391	44.37	VIL-AS-AP Vodafone Idea Ltd, IN
13	211894	60980	1.13%	8	7622.50	UNGLEICH-PLACE18, CH
14	34567	55161	1.02%	114	483.87	NEXT-AS, HK
15	10103	50745	0.94%	12	4228.75	HKBN-AS-AP HK Broadband Network Ltd., HK
16	23736	47639	0.88%	47	1013.60	TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
17	36351	44854	0.83%	71	631.75	SOFTLAYER, US
18	204508	43859	0.81%	18	2436.61	MLGT, IT
19	267963	42167	0.78%	7	6023.86	HAYAN TELECOM, BR
20	12041	41903	0.78%	228	183.79	AS-AFILIAS1, US
21	21351	32022	0.59%	17	1883.65	CANALPLUSTELECOM, GP
22	263262	30343	0.56%	21	1444.90	MOV TELECOM LTDA, BR
23	267943	28465	0.53%	16	1779.06	SOL PROVEDOR DE INTERNETE LTDA - ME, BR
24	32098	28437	0.53%	1633	17.41	TRANSTELCO-INC, US
25	265500	28114	0.52%	10	2811.40	ALMEIRIM TELECOM LTDA - ME, BR
26	61164	27798	0.52%	57	487.68	LIR-AS, AE
27	213092	26529	0.49%	12	2210.75	MARBLEIS, GB
28	17072	26503	0.49%	1404	18.88	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
29	199553	25655	0.48%	6	4275.83	UNGLEICH-PLACE5, CH
30	28598	25502	0.47%	14	1821.57	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
31	139341	23330	0.43%	171	136.43	ACE-AS-AP ACE, SG
32	13780	23270	0.43%	10	2327.00	MILEHIGHWALRUS-NETWORK, US
33	30083	22952	0.43%	3	7650.67	AS-30083-US-VELIA-NET, DE
34	56167	22860	0.42%	648	35.28	PTML-PK Plot No 181-186 Street, PK
35	262448	22390	0.42%	20	1119.50	DIALHOST INTERNET EIRELI, BR
36	271149	20517	0.38%	3	6839.00	K. R. VIOTO, BR
37	28126	19945	0.37%	9	2216.11	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
38	64289	19855	0.37%	12	1654.58	MACARNE, US
39	13335	19334	0.36%	2989	6.47	CLOUDFLARENET, US
40	43350	19225	0.36%	24	801.04	NFORCE, NL
41	14593	19168	0.36%	713	26.88	SPACEX-STARLINK, US
42	136873	18269	0.34%	9	2029.89	MEGADATA-AS-ID MEGADATA-ISP, ID
43	36183	18211	0.34%	1640	11.10	AKAMAI-AS, US
44	39572	18188	0.34%	33	551.15	ADVANCEDHOSTERS-AS, NL
45	28458	17976	0.33%	2	8988.00	IENTC S DE RL DE CV, MX
46	55960	16457	0.31%	34	484.03	BJ-GUANGHUAN-AP Beijing Guanghuan Xinwang Digital, CN
47	92	15742	0.29%	1	15742.00	CLARKSON-AS, US
48	21664	15661	0.29%	37	423.27	AMZN-BYOASN, US
49	272053	15399	0.29%	1	15399.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
50	149500	15339	0.28%	4	3834.75	SR-AS-AP Shane Renshaw, HK
Total		3393499	63.02%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	214028	640743.0	11.90%	1	640743	MAHDI-UMRAN, ID
2	92	15742.0	0.29%	1	15742	CLARKSON-AS, US
3	272053	15399.0	0.29%	1	15399	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
4	210564	11340.0	0.21%	1	11340	SWANTZTER-AS, SE
5	203664	10829.0	0.20%	1	10829	LANXING-AS, CN
6	28458	8988.0	0.33%	2	17976	IENTC S DE RL DE CV, MX
7	328631	8890.0	0.17%	1	8890	BallitoISP, ZA
8	30083	7650.7	0.43%	3	22952	AS-30083-US-VELIA-NET, DE
9	211894	7622.5	1.13%	8	60980	UNGLEICH-PLACE18, CH
10	61625	7143.0	0.13%	1	7143
11	271149	6839.0	0.38%	3	20517	K. R. VIOTO, BR
12	209898	6803.5	0.25%	2	13607	UNGLEICH-UNGLEICH-UPSTREAM, CH
13	199678	6518.0	0.12%	1	6518	AS-6RW-, RU
14	267963	6023.9	0.78%	7	42167	HAYAN TELECOM, BR
15	141145	5938.0	0.11%	1	5938	GIGANET-AS-ID PT Giga Digital Nusantara, ID
16	41701	5680.0	0.11%	1	5680	CAP-FIN-AS, FI
17	271944	5564.0	0.10%	1	5564	AUDIBEL TELECOMUNICACIONES S.A., AR
18	266919	4789.0	0.09%	1	4789	MDS INTERNET E SERVICO DE INFORMATICA LTDA. ME, BR
19	61845	4744.7	0.26%	3	14234	GRD TELECOMUNICACOES LTDA, BR
20	30362	4625.0	0.09%	1	4625	HPT-ASN, US
21	199553	4275.8	0.48%	6	25655	UNGLEICH-PLACE5, CH
22	211645	4242.0	0.08%	1	4242	SPG, DE
23	10103	4228.8	0.94%	12	50745	HKBN-AS-AP HK Broadband Network Ltd., HK
24	20915	4193.0	0.08%	1	4193	HUNDRED-PERCENT-IT, GB
25	265314	4104.0	0.08%	1	4104	Toolsoft Tecnologia Ltda, BR
26	268088	4039.0	0.08%	1	4039	PAULO ROBERTO SOARES DE CARVALHO, BR
27	149500	3834.8	0.28%	4	15339	SR-AS-AP Shane Renshaw, HK
28	11761	3680.0	0.07%	1	3680	KKCLOUD, US
29	24474	3617.0	0.13%	2	7234	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
30	22616	3441.9	2.37%	37	127350	ZSCALER-SJC1, US
31	262901	3288.5	0.12%	2	6577	Vcnet Provedora de Internet Ltda., BR
32	138535	2878.3	0.16%	3	8635	FURDEVS-AS-AP Wu Qi, CN
33	214498	2863.0	0.05%	1	2863	MCLARENAPPLIED, GB
34	265500	2811.4	0.52%	10	28114	ALMEIRIM TELECOM LTDA - ME, BR
35	199235	2675.0	0.05%	1	2675	MIKROHALO-HU-AS, HU
36	199689	2626.0	0.05%	1	2626	JOSHA-PRIOR Netralex BYOIP, NL
37	214366	2587.0	0.05%	1	2587	PRIVACYFIRST, AE
38	204508	2436.6	0.81%	18	43859	MLGT, IT
39	266136	2391.0	0.13%	3	7173	R.A INTERNET, BR
40	13780	2327.0	0.43%	10	23270	MILEHIGHWALRUS-NETWORK, US
41	28126	2216.1	0.37%	9	19945	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
42	200915	2212.3	0.12%	3	6637	MRFK, NO
43	213092	2210.8	0.49%	12	26529	MARBLEIS, GB
44	269441	2161.0	0.12%	3	6483	MUNDO FIBRA, BR
45	271457	2080.5	0.08%	2	4161	VOLTSNET PROVEDOR COMERCIO E SERVICO LTDA ME ME, BR
46	136873	2029.9	0.34%	9	18269	MEGADATA-AS-ID MEGADATA-ISP, ID
47	272685	2019.0	0.04%	1	2019	R A PROVEDOR DE INTERNET E COMERCIO LTDA, BR
48	213525	1990.0	0.04%	1	1990	MCLARENAPPLIED, GB
49	21351	1883.6	0.59%	17	32022	CANALPLUSTELECOM, GP
50	28598	1821.6	0.47%
Total		879037.2	26.99%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a0f:85c1:8b9::/48	640743	11.29%	214028 -- MAHDI-UMRAN, ID
2	2a03:eec0:3212::/48	127229	2.24%	22616 -- ZSCALER-SJC1, US
3	2a02:1391:5100::/40	31998	0.56%	21351 -- CANALPLUSTELECOM, GP
4	2804:248:100::/40	25416	0.45%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
5	2605:de00:bb::/48	22950	0.40%	30083 -- AS-30083-US-VELIA-NET, DE
6	240d:c010:165::/48	20826	0.37%	139341 -- ACE-AS-AP ACE, SG
7	2806:202::/32	17974	0.32%	28458 -- IENTC S DE RL DE CV, MX
8	2a14:3f87:9800::/38	17430	0.31%	64289 -- MACARNE, US
9	2605:6480::/32	15742	0.28%	92 -- CLARKSON-AS, US
10	2803:5d10::/32	15399	0.27%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
11	2a0a:e5c0:76::/48	13605	0.24%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2a02:b48:83f3::/48	11645	0.21%	39572 -- ADVANCEDHOSTERS-AS, NL
13	2001:67c:20fc::/48	11340	0.20%	210564 -- SWANTZTER-AS, SE
14	2804:7704:8000::/33	11237	0.20%	271149 -- K. R. VIOTO, BR
15	2a0e:aa07:e044::/48	10829	0.19%	203664 -- LANXING-AS, CN
16	2610:a1:1028::/48	10265	0.18%	19905 -- SECURITYSERVICES, US
17	2607:74c0:100::/44	10255	0.18%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
18	2607:74c0:120::/44	10230	0.18%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
19	2607:74c0:140::/44	10218	0.18%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
20	2607:74c0:110::/44	10090	0.18%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
21	2607:74c0:130::/44	9938	0.18%	10103 -- HKBN-AS-AP HK Broadband Network Ltd., HK
22	2804:7704::/33	9222	0.16%	271149 -- K. R. VIOTO, BR
23	2a05:4140:333::/48	9119	0.16%	204508 -- MLGT, IT
24	2a05:4140:316::/48	9110	0.16%	204508 -- MLGT, IT
25	2a05:4140:304::/48	9089	0.16%	204508 -- MLGT, IT
26	2a05:4140:380::/42	9043	0.16%	204508 -- MLGT, IT
27	2c0f:e8a8::/32	8890	0.16%	328631 -- BallitoISP, ZA
28	2406:840:e620::/48	8632	0.15%	138535 -- FURDEVS-AS-AP Wu Qi, CN
29	2a0a:e5c1:517::/48	8351	0.15%	199553 -- UNGLEICH-PLACE5, CH
30	2a0a:e5c0:45::/48	8339	0.15%	199553 -- UNGLEICH-PLACE5, CH
31	2a0a:e5c0:16::/48	8339	0.15%	199553 -- UNGLEICH-PLACE5, CH
32	2a0a:5480:1::/48	8321	0.15%	211894 -- UNGLEICH-PLACE18, CH
33	2a0a:5480:4::/48	8321	0.15%	211894 -- UNGLEICH-PLACE18, CH
34	2a0a:5480::/48	8320	0.15%	211894 -- UNGLEICH-PLACE18, CH
35	2a0a:5480:3::/48	8318	0.15%	211894 -- UNGLEICH-PLACE18, CH
36	2a0a:5480:1ac::/48	8317	0.15%	211894 -- UNGLEICH-PLACE18, CH
37	2a0a:5480:5::/48	8314	0.15%	211894 -- UNGLEICH-PLACE18, CH
38	2a0a:5480:2::/48	8313	0.15%	211894 -- UNGLEICH-PLACE18, CH
39	2a03:90c0:7a0::/44	8203	0.14%	59437 -- NORTHERNDATA, DE
40	2400:58a0:1003::/48	7817	0.14%	149500 -- SR-AS-AP Shane Renshaw, HK
41	2804:1a34:8000::/33	7796	0.14%	61845 -- GRD TELECOMUNICACOES LTDA, BR
42	2600:6c7f:9370::/44	7626	0.13%	19115 -- CHARTER-19115-DC, US
43	2a01:fb05:4000::/36	7610	0.13%	216096 -- SECUREPEAK, AD
44	2a07:54c1:2202::/48	7521	0.13%	216056 -- XAVEN-NETWORK, CN
45	2a13:aac4:1000::/36	7479	0.13%	204508 -- MLGT, IT
46	2804:9524::/32	7143	0.13%	61625 --
47	2001:67c:12d4::/48	6518	0.11%	199678 -- AS-6RW-, RU
48	2605:9cc0:c06::/48	6456	0.11%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
49	2605:9cc0:c0e::/48	6380	0.11%	21664 -- AMZN-BYOASN, US 8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
50	2804:1a34::/33	6371	0.11%	61845 -- GRD TELECOMUNICACOES LTDA, BR
Total		1288637	22.73%

14 Day BGP Update Statistics Profile: 6-November-2025 00:00 - 20-November-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	26381758
Number of Prefix Changes:	30878077
Number of Prefix Updates:	26381758
Number of Prefix Withdrawals:	4496319
Average Prefixes per BGP Update:	1.17
Average BGP Update Messages per second:	21.81
Average Prefix Updates per second:	25.53
Peak BGP Update Message Rate per second:	63022	(23:03:53 Mon, 17-Nov-2025)
Peak Prefix Update Rate per second:	63022	(23:03:53 Mon, 17-Nov-2025)
Peak Prefix Withdraw Rate per second:	2051	(13:50:23 Wed, 12-Nov-2025, )
Number of RIB Prefix Updates:	5383137	(0.20 of recv'd updates)
Number of RIB Prefix Withdrawals:	290369	(0.06 of recv'd withdrawals)
Peak RIB Update Rate per second:	37472	(23:03:53 Mon, 17-Nov-2025)
Peak RIB Withdrawal Rate per second:	797	(13:49:29 Wed, 12-Nov-2025)
Seen Prefix Count:	249517
Updated Prefix Count:	241635
Stable Prefix Count:	7882
Seen Origin AS Count:	35914
Updated Origin AS Count:	35713
Stable Origin AS Count:	201
Seen Unique Path Count:	182760
Updated Path Count:	152099
Stable Path Count:	30661

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