AS8681 JT

JT (JT) — formerly Jersey Telecom, the States-of-Jersey-owned incumbent

operator for Jersey and Guernsey, and the ISP behind the jtglobal.com and

jtibs.net address space.

What it's used for

• Retail fixed broadband and mobile in the Channel Islands. The rDNS is explicitly eyeball: dynamic pools under IP-ADDR.dyn.jtglobal.com and residential customer names of the form userNNN.resNN.jtibs.net, alongside generic reverse-octet IP-ADDR.jtglobal.com names for the static assignments.
• Business and public-sector connectivity on the islands sits in the same inventory, along with infrastructure from operators JT absorbed — newtelsolutions.net (Newtel) and guernsey.net names still resolve inside the announced space.

Notable

• About 71,000 IPv4 addresses across roughly 58 prefixes, with a peering count (dozens of neighbours) that is high for an island of ~100,000 people. JT sells wholesale and international services well beyond its home market.
• Part of the inventory is ARIN and APNIC space rather than RIPE, reflecting JT's global IoT/roaming-SIM business rather than any brokered address holding: every block resolves into JT's own domains.
• Jersey was one of the first places in the world with island-wide fibre-to-the- premises, JT having completed the rollout to essentially every home.

Interesting

• Sister-island incumbent [AS8680](https://asn.ipinfo.app/AS8680) (Sure) sits one number away and covers the same archipelago from Guernsey — adjacent AS numbers for competing island carriers.