The BGP IPv6 Instability Report

This report is updated daily. The current report
was generated on 17 December 2025 01:16 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	7552	339054	8.47%	3968	85.45	VIETEL-AS-AP Viettel Group, VN
2	202256	250470	6.26%	1059	236.52	LAWLIETNET, CN
3	39891	139206	3.48%	2058	67.64	ALJAWWALSTC-AS, SA
4	199340	102506	2.56%	4156	24.66	HONG-GUANWAN, HK
5	16509	94821	2.37%	5457	17.38	AMAZON-02, US
6	22616	90879	2.27%	39	2330.23	ZSCALER-SJC1, US
7	8386	88060	2.20%	20	4403.00	KOCNET, TR
8	216193	84577	2.11%	1	84577.00	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
9	40138	83570	2.09%	38	2199.21	MDNET, US
10	216141	71679	1.79%	1	71679.00	LEATYON-AS, IT
11	204508	55416	1.38%	18	3078.67	MLGT, IT
12	28126	44225	1.11%	23	1922.83	BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
13	12041	43455	1.09%	228	190.59	AS-AFILIAS1, US
14	21351	39207	0.98%	17	2306.29	CANALPLUSTELECOM, GP
15	42375	38382	0.96%	444	86.45	INET-AS, SC
16	28649	35394	0.88%	77	459.66	Desktop Sigmanet Comunicacao Multimidia SA, BR
17	43350	30500	0.76%	24	1270.83	NFORCE, NL
18	265634	27475	0.69%	29	947.41	JR INTERCOM S.R.L, AR
19	268431	27225	0.68%	7	3889.29	netX TI LTDA, BR
20	205651	27154	0.68%	1	27154.00	CATOFES, CN
21	214732	26886	0.67%	3	8962.00	RATATOSKR RATATOSKR, US
22	213092	25129	0.63%	12	2094.08	MARBLEIS, GB
23	272708	24826	0.62%	13	1909.69	MARTINS E SA LTDA, BR
24	139341	24608	0.61%	176	139.82	ACE-AS-AP ACE, SG
25	38266	22793	0.57%	1382	16.49	VIL-AS-AP Vodafone Idea Ltd, IN
26	17072	22705	0.57%	1414	16.06	TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
27	10103	22104	0.55%	12	1842.00	HKBN-AS-AP HK Broadband Network Ltd., HK
28	48635	20701	0.52%	21	985.76	CLDIN-NL Your Hosting B.V. part of Your.Online, NL
29	262448	19990	0.50%	20	999.50	DIALHOST INTERNET EIRELI, BR
30	48456	19547	0.49%	180	108.59	IPX-AS, AE
31	51202	19286	0.48%	12	1607.17	NUXOA, DE
32	28640	18962	0.47%	15	1264.13	VIPWay Telecomunicacoes Ltda, BR
33	12735	18946	0.47%	416	45.54	ASTURKNET, TR
34	36183	18864	0.47%	1644	11.47	AKAMAI-AS, US
35	28598	18583	0.46%	14	1327.36	DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
36	204210	18572	0.46%	4	4643.00	ZEUSPACKAGINGLTD, IE
37	30058	18256	0.46%	143	127.66	FDCSERVERS, US
38	11172	17386	0.43%	2154	8.07	Alestra, S. de R.L. de C.V., MX
39	209898	16638	0.42%	2	8319.00	UNGLEICH-UNGLEICH-UPSTREAM, CH
40	45271	16380	0.41%	1249	13.11	VIL-AS-AP Vodafone Idea Ltd, IN
41	203664	16226	0.41%	1	16226.00	LANXING-AS, CN
42	272053	15572	0.39%	1	15572.00	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
43	24173	15284	0.38%	262	58.34	NETNAM-AS-AP Netnam Company, VN
44	151810	14895	0.37%	4	3723.75	PHYLAXISINC-AS-AP Phylaxis Korea, KR
45	21664	14750	0.37%	39	378.21	AMZN-BYOASN, US
46	39686	14383	0.36%	14	1027.36	AS-EUROFIBER, NL
47	61573	14336	0.36%	13	1102.77	Ip Telecom, BR
48	2018	14289	0.36%	14	1020.64	TENET-1, ZA
49	13335	14114	0.35%	3009	4.69	CLOUDFLARENET, US
50	50529	13414	0.34%	126	106.46	FN-AS, AE
Total		2271680	56.76%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	216193	84577.0	2.11%	1	84577	AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
2	216141	71679.0	1.79%	1	71679	LEATYON-AS, IT
3	205651	27154.0	0.68%	1	27154	CATOFES, CN
4	203664	16226.0	0.41%	1	16226	LANXING-AS, CN
5	272053	15572.0	0.39%	1	15572	ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
6	210564	13365.0	0.33%	1	13365	SWANTZTER-AS, SE
7	44297	11751.0	0.29%	1	11751	ICODIA ICODIA NETWORK INTEGRITY, FR
8	204210	9286.0	0.46%	4	18572	ZEUSPACKAGINGLTD, IE
9	328631	9190.0	0.23%	1	9190	BallitoISP, ZA
10	214732	8962.0	0.67%	3	26886	RATATOSKR RATATOSKR, US
11	209898	8319.0	0.42%	2	16638	UNGLEICH-UNGLEICH-UPSTREAM, CH
12	22616	8261.7	2.27%	39	90879	ZSCALER-SJC1, US
13	210305	7673.0	0.19%	1	7673	FRR-TESTLAB, US
14	271944	6965.0	0.17%	1	6965	AUDIBEL TELECOMUNICACIONES S.A., AR
15	141145	6756.0	0.17%	1	6756	GIGANET-AS-ID PT Giga Digital Nusantara, ID
16	214450	6513.0	0.33%	2	13026	OGL-AS, DE
17	264525	6363.5	0.32%	5	12727	Coelho Tecnologia, BR
18	23420	5507.0	0.14%	1	5507	AS-DAVENPRO, US
19	52191	5289.0	0.13%	1	5289	LOCALKA-NET-AS , UA
20	34600	4936.0	0.12%	1	4936	AS6GNET, PL
21	20915	4863.0	0.12%	1	4863	HUNDRED-PERCENT-IT, GB
22	30083	4780.0	0.12%	3	4780	AS-30083-US-VELIA-NET, DE
23	268487	4774.0	0.12%	5	4774	PRISMA TELECOMUNICACOES LTDA. EPP, BR
24	30362	4587.0	0.11%	1	4587	HPT-ASN, US
25	92	4498.0	0.11%	1	4498	CLARKSON-AS, US
26	8386	4403.0	2.20%	20	88060	KOCNET, TR
27	26445	4346.0	0.11%	1	4346	OWL, US
28	21570	4215.0	0.11%	5	4215	ACI-1, CA
29	265314	4196.0	0.10%	1	4196	Toolsoft Tecnologia Ltda, BR
30	21351	3920.7	0.98%	17	39207	CANALPLUSTELECOM, GP
31	268431	3889.3	0.68%	7	27225	netX TI LTDA, BR
32	399916	3881.0	0.10%	1	3881	PACKETSTREAM-NAM, US
33	198090	3879.0	0.10%	1	3879	ASLIBRA, IT
34	24474	3768.0	0.19%	2	7536	ASNPANYCAST Nepal Internet Exchange NP Anycast, NP
35	151810	3723.8	0.37%	4	14895	PHYLAXISINC-AS-AP Phylaxis Korea, KR
36	138535	3676.3	0.28%	3	11029	FURDEVS-AS-AP Wu Qi, CN
37	211645	3271.0	0.08%	1	3271	SPG, DE
38	204508	3078.7	1.38%	18	55416	MLGT, IT
39	60742	2952.0	0.07%	1	2952	DAWOX, AT
40	266136	2901.3	0.22%	3	8704	R.A INTERNET, BR
41	52382	2848.0	0.07%	1	2848	Faculte Des Sciences, Universite dEtat dHaiti, HT
42	199235	2808.0	0.07%	1	2808	MIKROHALO-HU-AS, HU
43	262901	2793.5	0.14%	2	5587	Vcnet Provedora de Internet Ltda., BR
44	208824	2688.7	0.20%	3	8066	POLOPRO, ES
45	212173	2673.0	0.07%	1	2673	XP, SA
46	208948	2618.0	0.20%	3	7854	RECYCLED-CLOUD-AS, CH
47	394106	2613.3	0.20%	3	7840	BEIDEAL, US
48	214160	2597.0	0.06%	2	2597	SHREE, GB
49	203309	2496.5	0.12%	2	4993	CHOCO-AS, CN
50	9287	2452.0	0.31%
Total		440536.3	20.61%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	2a03:eec0:3212::/48	90823	2.12%	22616 -- ZSCALER-SJC1, US
2	2a13:1c47:c0d0::/44	84577	1.98%	216193 -- AS-HYPERION-CLOUD HYPERION CLOUD SAS, FR
3	2a11:f2c0:ffc7::/48	71679	1.68%	216141 -- LEATYON-AS, IT
4	2a02:1391:5100::/40	39199	0.92%	21351 -- CANALPLUSTELECOM, GP
5	2a0d:2904::/44	27154	0.63%	205651 -- CATOFES, CN
6	2a14:7c0:5300::/48	26878	0.63%	214732 -- RATATOSKR RATATOSKR, US
7	240d:c010:165::/48	19037	0.44%	139341 -- ACE-AS-AP ACE, SG
8	2a0c:b641:302::/47	18571	0.43%	204210 -- ZEUSPACKAGINGLTD, IE
9	2804:248:100::/40	18540	0.43%	28598 -- DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
10	2a0a:e5c0:76::/48	16632	0.39%	209898 -- UNGLEICH-UNGLEICH-UPSTREAM, CH
11	2a0e:aa07:e044::/48	16227	0.38%	203664 -- LANXING-AS, CN
12	2803:5d10::/32	15572	0.36%	272053 -- ANTUNES FLORES SERGIO OMAR NUEVA NET, AR
13	2804:511c::/33	13709	0.32%	268431 -- netX TI LTDA, BR
14	2804:511c:8000::/33	13461	0.31%	268431 -- netX TI LTDA, BR
15	2001:67c:20fc::/48	13365	0.31%	210564 -- SWANTZTER-AS, SE
16	2804:20fc:2000::/36	12723	0.30%	264525 -- Coelho Tecnologia, BR
17	2001:930:124::/48	12105	0.28%	8386 -- KOCNET, TR
18	2001:930:127::/48	12099	0.28%	8386 -- KOCNET, TR
19	2001:930:126::/48	12099	0.28%	8386 -- KOCNET, TR
20	2001:930:108::/48	12098	0.28%	8386 -- KOCNET, TR
21	2001:930:114::/48	12096	0.28%	8386 -- KOCNET, TR
22	2001:930:154::/48	12094	0.28%	8386 -- KOCNET, TR
23	2a05:4140:380::/42	12016	0.28%	204508 -- MLGT, IT
24	2a05:4140:316::/48	11984	0.28%	204508 -- MLGT, IT
25	2a05:4140:304::/48	11917	0.28%	204508 -- MLGT, IT
26	2a05:4140:333::/48	11767	0.28%	204508 -- MLGT, IT
27	2a0b:f8c0::/29	11752	0.27%	44297 -- ICODIA ICODIA NETWORK INTEGRITY, FR
28	2406:840:e620::/48	10991	0.26%	138535 -- FURDEVS-AS-AP Wu Qi, CN
29	2a02:b48:83f1::/48	9975	0.23%	39572 -- ADVANCEDHOSTERS-AS, NL
30	2a0a:5480:1ac::/48	9265	0.22%	211894 -- UNGLEICH-PLACE18, CH
31	2c0f:e8a8::/32	9190	0.21%	328631 -- BallitoISP, ZA
32	2400:7400:43::/48	8226	0.19%	23736 -- TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD., MY
33	2a0d:d9c3::/32	7840	0.18%	208948 -- RECYCLED-CLOUD-AS, CH
34	2a13:aac4:1000::/36	7717	0.18%	204508 -- MLGT, IT
35	2a07:e480:110::/48	7673	0.18%	210305 -- FRR-TESTLAB, US
36	2803:6610::/32	6965	0.16%	271944 -- AUDIBEL TELECOMUNICACIONES S.A., AR
37	2600:6c7f:9370::/44	6889	0.16%	19115 -- CHARTER-19115-DC, US
38	2402:e580:74b8::/48	6757	0.16%	40138 -- MDNET, US
39	2407:5440::/48	6756	0.16%	141145 -- GIGANET-AS-ID PT Giga Digital Nusantara, ID
40	2605:9cc0:c0e::/48	6672	0.16%	21664 -- AMZN-BYOASN, US 8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
41	2001:678:658::/48	6521	0.15%	214450 -- OGL-AS, DE
42	2a0e:b107:19cb::/48	6505	0.15%	214450 -- OGL-AS, DE
43	2800:540:2000::/44	6427	0.15%	27995 -- CLARO CHILE S.A., CL 6535 -- Telmex Servicios Empresariales S.A., CL
44	2605:9cc0:c1a::/48	5983	0.14%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
45	2804:29b8:5241::/48	5826	0.14%	28126 -- BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
46	2804:29b8:5243::/48	5802	0.14%	28126 -- BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
47	2804:29b8:5242::/48	5802	0.14%	28126 -- BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
48	2804:29b8:5244::/48	5799	0.14%	28126 -- BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
49	2804:29b8:5245::/48	5791	0.14%	28126 -- BRISANET SERVICOS DE TELECOMUNICACOES S.A, BR
50	2605:9cc0:c0b::/48	5715	0.13%	16509 -- AMAZON-02, US 21664 -- AMZN-BYOASN, US
Total		795261	18.57%

14 Day BGP Update Statistics Profile: 2-December-2025 00:00 - 16-December-2025 23:59 (UTC+1000)

Number of BGP Update Messages:	20333897
Number of Prefix Changes:	23971155
Number of Prefix Updates:	20333897
Number of Prefix Withdrawals:	3637258
Average Prefixes per BGP Update:	1.18
Average BGP Update Messages per second:	16.81
Average Prefix Updates per second:	19.82
Peak BGP Update Message Rate per second:	18847	(00:00:22 Wed, 3-Dec-2025)
Peak Prefix Update Rate per second:	18847	(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:	4001332	(0.20 of recv'd updates)
Number of RIB Prefix Withdrawals:	276938	(0.08 of recv'd withdrawals)
Peak RIB Update Rate per second:	18795	(00:00:22 Wed, 3-Dec-2025)
Peak RIB Withdrawal Rate per second:	341	(07:56:24 Thu, 4-Dec-2025)
Seen Prefix Count:	248764
Updated Prefix Count:	169775
Stable Prefix Count:	78989
Seen Origin AS Count:	35941
Updated Origin AS Count:	30714
Stable Origin AS Count:	5227
Seen Unique Path Count:	161743
Updated Path Count:	145117
Stable Path Count:	16626

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