KY

Cayman Islands holds 91,136 IPv4 addresses from ARIN and RIPE NCC.

Short answer

Regional registries have allocated 91,136 IPv4 addresses in 37 blocks, 5 IPv6 blocks and 18 network numbers to organisations in Cayman Islands, the first on 13 Mar 1991. By DB-IP’s count the largest network here is WestTel Ltd. (AS36549).

RegistryARIN, RIPE NCC
IPv4 allocated (RIR)91,136
IPv4 blocks37
IPv6 blocks5 (4 /32s of space)
Network numbers (ASNs)18
First / latest allocation13 Mar 1991 / 4 Feb 2026
IPv4 placed here by DB-IP108,128
DB-IP ranges (IPv4 / IPv6)72 / 63

Registered here vs used here

The RIR count is what was allocated to organisations registered in Cayman Islands; DB-IP’s count is where it estimates addresses are used. DB-IP places 16,992 more IPv4 addresses in Cayman Islands than were allocated here, which happens when networks registered elsewhere (cloud providers, multinationals) operate in the country.

Largest networks by IPv4 space in Cayman Islands

NetworkASNIPv4 in KY
WestTel Ltd.AS3654925,344
Cable & Wireless (Cayman Islands) Ltd.AS663924,320
Cogent CommunicationsAS1746,400
Infinity Broadband LtdAS164375,632
Digicel Cayman LimitedAS137712,048
Butterfly ResearchAS34021,536
SALTAS3973431,024
Zero PositionAS53891768
Webair Internet Development Company Inc.AS27257608
Space Exploration Technologies CorporationAS14593512
Digicel JamaicaAS33576256
Digicel JamaicaAS40786256
Cable & Wireless (Barbados) LimitedAS10278256
FLOWAS30689256
Strong Technology, LLC.AS62651256

IP Geolocation by DB-IP (ASN Lite × Country Lite, CC BY 4.0).

Allocations per year

20132
20141
20152
20163
20171
20197
20202
20212
20222
20247
20253
20261

Delegation records per year (IPv4 blocks + IPv6 blocks + ASN records) still current in the RIR files. Last 12 years shown.

Download the ranges

Every IPv4 and IPv6 range DB-IP Country Lite places in Cayman Islands, as CSV. The file carries DB-IP’s attribution, which you must keep if you republish it.

Cayman Islands ranges (CSV)

Sources

  1. NRO RIR delegated-extended statistics · checked 5 Nov 2026
  2. DB-IP IP to Country Lite (CC BY 4.0) · checked 3 Nov 2026