The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 3 December 2025 01:17 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	202256	501906	12.84%	1176	426.79	LAWLIETNET, CN
2	199340	130357	3.34%	4100	31.79	HONG-GUANWAN, HK
3	22616	129576	3.32%	37	3502.05	ZSCALER-SJC1, US
4	32098	108530	2.78%	1660	65.38	TRANSTELCO-INC, US
5	16509	106106	2.71%	5489	19.33	AMAZON-02, US
6	7552	105563	2.70%	3967	26.61	VIETEL-AS-AP Viettel Group, VN
7	40138	80155	2.05%	41	1955.00	MDNET, US
8	42375	64852	1.66%	261	248.48	INET-AS, SC
9	211894	60858	1.56%	8	7607.25	UNGLEICH-PLACE18, CH
10	9829	44165	1.13%	841	52.51	BSNL-NIB National Internet Backbone, IN
11	48456	39593	1.01%	180	219.96	IPX-AS, AE
12	214732	37800	0.97%	3	12600.00	RATATOSKR RATATOSKR, US
13	39891	36987	0.95%	2010	18.40	ALJAWWALSTC-AS, SA
14	9287	36761	0.94%	8	4595.12	TIDCC-AS-AP True Internet Data Center Company Limited, TH
15	21351	33608	0.86%	17	1976.94	CANALPLUSTELECOM, GP
16	267963	32296	0.83%	7	4613.71	HAYAN TELECOM, BR
17	50529	29576	0.76%	126	234.73	FN-AS, AE
18	28126	28022	0.72%	14	2001.57	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
19	38266	27652	0.71%	1393	19.85	VIL-AS-AP Vodafone Idea Ltd, IN
20	28598	26810	0.69%	14	1915.00	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
21	12041	26761	0.68%	228	117.37	AS-AFILIAS1, US
22	199553	26501	0.68%	6	4416.83	UNGLEICH-PLACE5, CH
23	262448	22462	0.57%	20	1123.10	DIALHOST INTERNET EIRELI, BR
24	28548	20807	0.53%	193	107.81	Cablevision, S.A. de C.V., MX
25	213092	20768	0.53%	12	1730.67	MARBLEIS, GB
26	272708	20246	0.52%	5	4049.20	MARTINS E SA LTDA, BR
27	203664	20238	0.52%	1	20238.00	LANXING-AS, CN
28	17072	20203	0.52%	1405	14.38	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
29	34567	19933	0.51%	95	209.82	NEXT-AS, HK
30	204210	19929	0.51%	4	4982.25	ZEUSPACKAGINGLTD, IE
31	51202	19336	0.49%	12	1611.33	NUXOA, DE
32	268431	19183	0.49%	7	2740.43	netX TI LTDA, BR
33	10103	18473	0.47%	12	1539.42	HKBN-AS-AP HK Broadband Network Ltd., HK
34	61573	18099	0.46%	13	1392.23	Ip Telecom, BR
35	205651	17162	0.44%	1	17162.00	CATOFES, CN
36	21664	16435	0.42%	39	421.41	AMZN-BYOASN, US
37	39572	16224	0.42%	33	491.64	ADVANCEDHOSTERS-AS, NL
38	272053	16061	0.41%	1	16061.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
39	204508	15890	0.41%	18	882.78	MLGT, IT
40	56167	15732	0.40%	648	24.28	PTML-PK Plot No 181-186 Street, PK
41	151810	15200	0.39%	4	3800.00	PHYLAXISINC-AS-AP Phylaxis Korea, KR
42	92	14823	0.38%	1	14823.00	CLARKSON-AS, US
43	29066	14656	0.37%	8	1832.00	VELIANET-AS velia.net Internetdienste GmbH, DE
44	209898	14332	0.37%	2	7166.00	UNGLEICH-UNGLEICH-UPSTREAM, CH
45	13335	13774	0.35%	2926	4.71	CLOUDFLARENET, US
46	61164	13373	0.34%	57	234.61	LIR-AS, AE
47	267943	12605	0.32%	16	787.81	SOL PROVEDOR DE INTERNETE LTDA - ME, BR
48	401538	12506	0.32%	2400	5.21	NOVA86, US
49	215280	12134	0.31%	3	4044.67	OCEAN-CA OCEAN NETWORKS, US
50	64289	12081	0.31%	12	1006.75	MACARNE, US
Total		2187100	55.97%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	203664	20238.0	0.52%	1	20238	LANXING-AS, CN
2	205651	17162.0	0.44%	1	17162	CATOFES, CN
3	272053	16061.0	0.41%	1	16061	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
4	92	14823.0	0.38%	1	14823	CLARKSON-AS, US
5	214732	12600.0	0.97%	3	37800	RATATOSKR RATATOSKR, US
6	210564	11505.0	0.29%	1	11505	SWANTZTER-AS, SE
7	44297	9461.0	0.24%	1	9461	ICODIA ICODIA NETWORK INTEGRITY, FR
8	328631	9342.0	0.24%	1	9342	BallitoISP, ZA
9	211894	7607.2	1.56%	8	60858	UNGLEICH-PLACE18, CH
10	209898	7166.0	0.37%	2	14332	UNGLEICH-UNGLEICH-UPSTREAM, CH
11	271944	6858.0	0.18%	1	6858	AUDIBEL TELECOMUNICACIONES S.A., AR
12	199678	6645.0	0.17%	1	6645	AS-6RW-, RU
13	41701	5940.0	0.15%	1	5940	CAP-FIN-AS, FI
14	141145	5892.0	0.15%	1	5892	GIGANET-AS-ID PT Giga Digital Nusantara, ID
15	43247	5852.0	0.15%	1	5852	YOOMONEY-AS, RU
16	52191	5454.0	0.14%	1	5454	LOCALKA-NET-AS , UA
17	204210	4982.2	0.51%	4	19929	ZEUSPACKAGINGLTD, IE
18	30362	4906.0	0.13%	1	4906	HPT-ASN, US
19	20915	4742.0	0.12%	1	4742	HUNDRED-PERCENT-IT, GB
20	267963	4613.7	0.83%	7	32296	HAYAN TELECOM, BR
21	9287	4595.1	0.94%	8	36761	TIDCC-AS-AP True Internet Data Center Company Limited, TH
22	199553	4416.8	0.68%	6	26501	UNGLEICH-PLACE5, CH
23	268088	4210.0	0.11%	1	4210	PAULO ROBERTO SOARES DE CARVALHO, BR
24	211645	4093.0	0.10%	1	4093	SPG, DE
25	272708	4049.2	0.52%	5	20246	MARTINS E SA LTDA, BR
26	215280	4044.7	0.31%	3	12134	OCEAN-CA OCEAN NETWORKS, US
27	262901	3903.0	0.20%	2	7806	Vcnet Provedora de Internet Ltda., BR
28	198090	3896.0	0.10%	1	3896	ASLIBRA, IT
29	151810	3800.0	0.39%	4	15200	PHYLAXISINC-AS-AP Phylaxis Korea, KR
30	24474	3543.5	0.18%	2	7087	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
31	22616	3502.1	3.32%	37	129576	ZSCALER-SJC1, US
32	398852	3413.0	0.09%	1	3413	NEXTOR-TELECOM, US
33	269864	3372.0	0.09%	1	3372	COMUNICACIONES METROPOLITANAS, INC, PA
34	210796	3369.5	0.17%	2	6739	BJOERN-SCHLEYER Bjoern Schleyer, DE
35	138535	3124.3	0.24%	3	9373	FURDEVS-AS-AP Wu Qi, CN
36	199327	2891.0	0.30%	4	11564	OBEONE, FR
37	266136	2794.0	0.21%	3	8382	R.A INTERNET, BR
38	399916	2782.0	0.07%	1	2782	PACKETSTREAM-NAM, US
39	11761	2760.0	0.07%	1	2760	KKCLOUD, US
40	268431	2740.4	0.49%	7	19183	netX TI LTDA, BR
41	212173	2733.0	0.07%	1	2733	XP, SA
42	26445	2731.0	0.07%	1	2731	OWL, US
43	269441	2679.3	0.21%	3	8038	MUNDO FIBRA, BR
44	199235	2632.0	0.07%	1	2632	MIKROHALO-HU-AS, HU
45	272407	2575.0	0.20%	3	7725	JAIME GONZALEZ GALVAN, MX
46	272345	2498.0	0.06%	1	2498	Isimac Internet S.A. de C.V., MX
47	270162	2495.0	0.13%	2	4990	CESAR FLORES BARBOSA, MX
48	273265	2493.0	0.06%	1	2493	ISGA COMUNICACIONES, MX
49	265575	2483.0	0.06%	1	2483	Tecnologias Avanzadas S. de R.L. de C.V., MX
50	273258	2482.0	0.06%
Total		278951	17.52%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a03:eec0:3212::/48	129344	3.08%	22616 -- ZSCALER-SJC1, US
2	2a14:7c0:5300::/48	37798	0.90%	214732 -- RATATOSKR RATATOSKR, US
3	2a02:1391:5100::/40	33572	0.80%	21351 -- CANALPLUSTELECOM, GP
4	2804:248:100::/40	26795	0.64%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
5	2a0e:aa07:e044::/48	20238	0.48%	203664 -- LANXING-AS, CN
6	2a0c:b641:302::/47	19925	0.47%	204210 -- ZEUSPACKAGINGLTD, IE
7	2a0d:2904::/44	17162	0.41%	205651 -- CATOFES, CN
8	2803:5d10::/32	16061	0.38%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
9	2605:6480::/32	14823	0.35%	92 -- CLARKSON-AS, US
10	2604:bc80:8000::/33	14634	0.35%	29066 -- VELIANET-AS velia.net Internetdienste GmbH, DE
11	2a0a:e5c0:76::/48	14327	0.34%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
12	2a14:3f87:9800::/38	11513	0.27%	64289 -- MACARNE, US
13	2001:67c:20fc::/48	11505	0.27%	210564 -- SWANTZTER-AS, SE
14	2a02:b48:83f1::/48	9838	0.23%	39572 -- ADVANCEDHOSTERS-AS, NL
15	2804:511c:8000::/33	9570	0.23%	268431 -- netX TI LTDA, BR
16	2804:511c::/33	9503	0.23%	268431 -- netX TI LTDA, BR
17	2a0b:f8c0::/29	9461	0.23%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
18	2406:840:e620::/48	9365	0.22%	138535 -- FURDEVS-AS-AP Wu Qi, CN
19	2c0f:e8a8::/32	9342	0.22%	328631 -- BallitoISP, ZA
20	2a0a:5480:1::/48	8425	0.20%	211894 -- UNGLEICH-PLACE18, CH
21	2a0a:5480:4::/48	8425	0.20%	211894 -- UNGLEICH-PLACE18, CH
22	2a0a:5480::/48	8424	0.20%	211894 -- UNGLEICH-PLACE18, CH
23	2a0a:5480:3::/48	8415	0.20%	211894 -- UNGLEICH-PLACE18, CH
24	2a0a:5480:1ac::/48	8404	0.20%	211894 -- UNGLEICH-PLACE18, CH
25	2a0a:5480:5::/48	8403	0.20%	211894 -- UNGLEICH-PLACE18, CH
26	2a0a:5480:2::/48	8400	0.20%	211894 -- UNGLEICH-PLACE18, CH
27	2a0a:e5c1:517::/48	8368	0.20%	199553 -- UNGLEICH-PLACE5, CH
28	2a0a:e5c0:45::/48	8351	0.20%	199553 -- UNGLEICH-PLACE5, CH
29	2a0a:e5c0:16::/48	8350	0.20%	199553 -- UNGLEICH-PLACE5, CH
30	2a13:aac4:1000::/36	7505	0.18%	204508 -- MLGT, IT
31	2001:fb0:1001::/48	7369	0.18%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
32	2404:3280:a::/48	7363	0.18%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
33	2001:fb0:1002::/48	7359	0.18%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
34	2001:fb0:1000::/48	7337	0.17%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
35	2404:3280::/32	7330	0.17%	9287 -- TIDCC-AS-AP True Internet Data Center Company Limited, TH
36	240d:c010:165::/48	6954	0.17%	139341 -- ACE-AS-AP ACE, SG
37	2402:e580:74b8::/48	6940	0.17%	40138 -- MDNET, US
38	2803:6610::/32	6858	0.16%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
39	2605:de00:bb::/48	6818	0.16%	30083 -- AS-30083-US-VELIA-NET, DE
40	2400:58a0:1003::/48	6674	0.16%	149500 -- SR-AS-AP Shane Renshaw, HK
41	2001:67c:12d4::/48	6645	0.16%	199678 -- AS-6RW-, RU
42	2a02:b48:83f3::/48	6279	0.15%	39572 -- ADVANCEDHOSTERS-AS, NL
43	2605:9cc0:c06::/48	6186	0.15%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
44	2800:540:2000::/44	6054	0.14%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
45	2001:67c:21d8::/48	5940	0.14%	41701 -- CAP-FIN-AS, FI
46	2407:5440::/48	5892	0.14%	141145 -- GIGANET-AS-ID PT Giga Digital Nusantara, ID
47	2a02:5180::/32	5852	0.14%	43247 -- YOOMONEY-AS, RU
48	2a14:7581:b20::/46	5833	0.14%	214575 -- CUTECH Curious Universe Technology, CN
49	2804:876c:c000::/34	5829	0.14%	272708 -- MARTINS E SA LTDA, BR
50	2800:540:2010::/44	5826	0.14%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
Total		647584	15.42%

14 Day BGP Update Statistics Profile: 18-November-2025 00:00 - 2-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	23608397
Number of Prefix Changes:	27922568
Number of Prefix Updates:	23608397
Number of Prefix Withdrawals:	4314171
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	19.52
Average Prefix Updates per second:	23.08
Peak BGP Update Message Rate per second:	99935	(12:09:00 Fri, 21-Nov-2025)
Peak Prefix Update Rate per second:	99935	(12:09:00 Fri, 21-Nov-2025)
Peak Prefix Withdraw Rate per second:	3301	(21:30:29 Tue, 25-Nov-2025, )
Number of RIB Prefix Updates:	3908591	(0.17 of recv'd updates)
Number of RIB Prefix Withdrawals:	296249	(0.07 of recv'd withdrawals)
Peak RIB Update Rate per second:	53773	(12:09:00 Fri, 21-Nov-2025)
Peak RIB Withdrawal Rate per second:	436	(21:30:29 Tue, 25-Nov-2025)
Seen Prefix Count:	251694
Updated Prefix Count:	245342
Stable Prefix Count:	6352
Seen Origin AS Count:	35966
Updated Origin AS Count:	35790
Stable Origin AS Count:	176
Seen Unique Path Count:	210099
Updated Path Count:	188992
Stable Path Count:	21107

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