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AS13335 CLOUDFLARENET - Cloudflare, Inc.

Everything the routing table and the registries say about AS13335: who holds it, which registry issued it, and which address blocks it advertises.

Content deliveryAS13335

2564 IPv4 and 3086 IPv6 prefixes announced.

Registry facts

Refreshed daily
AS number
AS13335
Holder
CLOUDFLARENET - Cloudflare, Inc.
Country
US
Regional registry
ARIN — American Registry for Internet Numbers
Registry block
Not published
Announced today
Yes
IPv4 prefixes
2564
IPv6 prefixes
3086
Observed at
2026-11-01T08:00:00

Data: RIPEstat. Prefix and holder data comes from the RIPEstat Data API and is cached for 24 hours. The regional registry is derived from the IANA AS number allocation table. Authoritative registry records are served by ARIN RDAP.

Announced prefixes

2564 IPv4 · 3086 IPv6
  • 100 IPv4 shown
  • 100 IPv6 shown
  • 1.0.0.0/24
  • 1.1.1.0/24
  • 5.10.214.0/24
  • 5.10.215.0/24
  • 5.83.149.0/24
  • 5.172.33.0/24
  • 5.226.183.0/24
  • 5.252.81.0/24
  • 8.6.112.0/24
  • 8.20.125.0/24
  • 8.21.10.0/24
  • 8.24.87.0/24
  • 8.27.64.0/24
  • 8.27.66.0/24
  • 8.27.67.0/24
  • 8.29.109.0/24
  • 8.29.228.0/24
  • 8.29.230.0/24
  • 8.29.231.0/24
  • 8.31.160.0/24
  • 8.31.161.0/24
  • 8.34.70.0/24
  • 8.34.146.0/24
  • 8.35.211.0/24
  • 8.39.125.0/24
  • 8.39.204.0/24
  • 8.39.214.0/24
  • 8.44.0.0/24
  • 8.44.1.0/24
  • 8.44.2.0/24
  • 8.44.61.0/24
  • 8.44.62.0/24
  • 8.47.69.0/24
  • 16.5.144.0/20
  • 23.131.204.0/24
  • 23.145.136.0/24
  • 23.145.152.0/24
  • 23.145.232.0/24
  • 23.145.248.0/24
  • 23.179.248.0/24
  • 23.180.136.0/24
  • 23.227.37.0/24
  • 23.227.38.0/23
  • 23.227.42.0/23
  • 23.227.48.0/23
  • 23.227.60.0/24
  • 31.185.108.0/24
  • 37.72.109.0/24
  • 37.153.170.0/24
  • 37.153.171.0/24
  • 38.96.28.0/23
  • 42.61.47.0/24
  • 43.229.39.0/24
  • 43.230.144.0/24
  • 45.6.45.0/24
  • 45.6.47.0/24
  • 45.8.200.0/24
  • 45.12.44.0/24
  • 45.12.45.0/24
  • 45.43.147.0/24
  • 45.43.158.0/24
  • 45.45.255.0/24
  • 45.128.76.0/24
  • 45.130.106.0/24
  • 45.130.125.0/24
  • 45.134.227.0/24
  • 45.146.130.0/24
  • 45.148.100.0/24
  • 45.152.208.0/24
  • 45.157.17.0/24
  • 45.192.223.0/24
  • 45.192.224.0/24
  • 45.195.153.0/24
  • 45.196.29.0/24
  • 45.196.168.0/24
  • 45.198.114.0/24
  • 45.198.116.0/24
  • 45.198.139.0/24
  • 45.199.183.0/24
  • 45.199.188.0/24
  • 46.38.152.0/24
  • 49.238.236.0/22
  • 49.238.236.0/24
  • 49.238.237.0/24
  • 49.238.238.0/24
  • 49.238.239.0/24
  • 51.194.144.0/22
  • 51.241.128.0/23
  • 57.250.49.0/24
  • 57.250.50.0/24
  • 57.250.51.0/24
  • 57.250.58.0/24
  • 61.8.33.0/24
  • 61.32.240.0/24
  • 61.245.108.0/24
  • 62.144.59.0/24
  • 62.146.255.0/24
  • 64.8.255.0/24
  • 64.40.138.0/24
  • 64.40.140.0/24
  • 2001:500:210::/48
  • 2001:501:210::/48
  • 2001:678:19c::/48
  • 2400:cb00:100::/48
  • 2400:cb00:1000::/48
  • 2400:cb00:1001::/48
  • 2400:cb00:1002::/48
  • 2400:cb00:1005::/48
  • 2400:cb00:1006::/48
  • 2400:cb00:1007::/48
  • 2400:cb00:1008::/48
  • 2400:cb00:1009::/48
  • 2400:cb00:1012::/48
  • 2400:cb00:1014::/48
  • 2400:cb00:1016::/48
  • 2400:cb00:1017::/48
  • 2400:cb00:1019::/48
  • 2400:cb00:102::/48
  • 2400:cb00:1021::/48
  • 2400:cb00:1022::/48
  • 2400:cb00:1023::/48
  • 2400:cb00:1024::/48
  • 2400:cb00:1025::/48
  • 2400:cb00:1026::/48
  • 2400:cb00:103::/48
  • 2400:cb00:1030::/48
  • 2400:cb00:1031::/48
  • 2400:cb00:1032::/48
  • 2400:cb00:1034::/48
  • 2400:cb00:1035::/48
  • 2400:cb00:1036::/48
  • 2400:cb00:1037::/48
  • 2400:cb00:1038::/48
  • 2400:cb00:1039::/48
  • 2400:cb00:1040::/48
  • 2400:cb00:1041::/48
  • 2400:cb00:1042::/48
  • 2400:cb00:1043::/48
  • 2400:cb00:1046::/48
  • 2400:cb00:1047::/48
  • 2400:cb00:1048::/48
  • 2400:cb00:1049::/48
  • 2400:cb00:1050::/48
  • 2400:cb00:1053::/48
  • 2400:cb00:1054::/48
  • 2400:cb00:1055::/48
  • 2400:cb00:1056::/48
  • 2400:cb00:1058::/48
  • 2400:cb00:106::/48
  • 2400:cb00:1061::/48
  • 2400:cb00:107::/48
  • 2400:cb00:109::/48
  • 2400:cb00:11::/48
  • 2400:cb00:112::/48
  • 2400:cb00:113::/48
  • 2400:cb00:1130::/48
  • 2400:cb00:1131::/48
  • 2400:cb00:114::/48
  • 2400:cb00:115::/48
  • 2400:cb00:116::/48
  • 2400:cb00:1164::/48
  • 2400:cb00:1165::/48
  • 2400:cb00:1166::/48
  • 2400:cb00:1167::/48
  • 2400:cb00:1173::/48
  • 2400:cb00:1174::/48
  • 2400:cb00:1176::/48
  • 2400:cb00:1177::/48
  • 2400:cb00:1178::/48
  • 2400:cb00:1179::/48
  • 2400:cb00:1180::/48
  • 2400:cb00:1183::/48
  • 2400:cb00:1184::/48
  • 2400:cb00:1186::/48
  • 2400:cb00:1187::/48
  • 2400:cb00:119::/48
  • 2400:cb00:12::/48
  • 2400:cb00:120::/48
  • 2400:cb00:121::/48
  • 2400:cb00:1220::/48
  • 2400:cb00:1221::/48
  • 2400:cb00:1223::/48
  • 2400:cb00:1229::/48
  • 2400:cb00:123::/48
  • 2400:cb00:1230::/48
  • 2400:cb00:1231::/48
  • 2400:cb00:1232::/48
  • 2400:cb00:1233::/48
  • 2400:cb00:1234::/48
  • 2400:cb00:1235::/48
  • 2400:cb00:1238::/48
  • 2400:cb00:124::/48
  • 2400:cb00:1243::/48
  • 2400:cb00:1244::/48
  • 2400:cb00:125::/48
  • 2400:cb00:1255::/48
  • 2400:cb00:1256::/48
  • 2400:cb00:126::/48
  • 2400:cb00:1264::/48
  • 2400:cb00:1272::/48

A prefix here is a block this AS was seen originating in BGP, not a block it is guaranteed to own. Announcement and allocation are different facts, and they disagree more often than people expect.

Registry record

arin
FieldValue
ASNumber13335
ASNameCLOUDFLARENET
ASHandle13335
RegDate2010-07-14
CommentAll Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Refhttps://rdap.arin.net/registry/autnum/13335
sourceARIN
OrgAbuseHandleABUSE2916-ARIN
OrgAbuseNameAbuse
OrgAbusePhone+1-650-319-8930
OrgAbuseEmailabuse@cloudflare.com
OrgAbuseRefhttps://rdap.arin.net/registry/entity/ABUSE2916-ARIN
sourceARIN
OrgNOCHandleCLOUD146-ARIN
OrgNOCNameCloudflare-NOC
OrgNOCPhone+1-650-319-8930
OrgNOCEmailnoc@cloudflare.com
OrgNOCRefhttps://rdap.arin.net/registry/entity/CLOUD146-ARIN
sourceARIN
OrgNameCloudflare, Inc.
OrgIdCLOUD14
Address101 Townsend Street
CitySan Francisco
StateProvCA

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