AS8681 — JT

Network type: residential

AS8681 announces 36 IPv4 prefixes covering 71,936 addresses and 2 IPv6 prefixes.

About this network

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 (Sure) sits one number away and covers the same archipelago from Guernsey — adjacent AS numbers for competing island carriers.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.35.160.0/21
• 31.129.125.0/24
• 31.186.112.0/21
• 37.156.38.0/23
• 46.28.15.0/24
• 46.31.240.0/21
• 46.149.108.0/24
• 78.41.0.0/21
• 78.138.3.0/24
• 82.112.128.0/19
• 83.229.94.0/24
• 86.106.16.0/24
• 87.237.128.0/21
• 87.244.64.0/18
• 91.229.188.0/24
• 92.43.208.0/21
• 93.187.0.0/21
• 93.189.160.0/21
• 103.30.210.0/24
• 109.68.192.0/22
• 155.46.182.0/23
• 185.3.52.0/22
• 185.37.76.0/22
• 185.87.8.0/23
• 185.92.239.0/24
• 185.104.200.0/22
• 185.113.12.0/22
• 185.158.120.0/22
• 185.206.12.0/22
• 193.181.38.0/23
• 194.34.106.0/23
• 195.226.128.0/19
• 199.34.116.0/22
• 199.66.128.0/22
• 209.251.252.0/23
• 212.9.0.0/19
• 2a02:c28::/29
• 2a04:6b40::/29

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS202 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS50304 Blix Solutions AS
• AS37721 Virtual Technologies & Solutions
• AS17639 Converge ICT Solutions Inc.
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS29169 GANDI SAS
• AS24482 SG.GS
• AS50300 CustodianDC Limited
• AS57463 NetIX Communications JSC
• AS3741 Dimension Data
• AS3216 PJSC "Vimpelcom"
• AS12552 GlobalConnect AB
• AS12779 IT.Gate S.p.A.
• AS37100 SEACOM Limited
• AS9002 RETN Limited
• AS213241 TECHIT.BE SRL
• AS13030 Init7 (Switzerland) Ltd.

Downstream networks

• AS58744 Mirror Tower
• AS34497 Logicalis Guernsey Ltd
• AS211875 Government of Jersey

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS202 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS58744 Mirror Tower
• AS34497 Logicalis Guernsey Ltd
• AS34549 meerfarbig GmbH & Co. KG
• AS211875 Government of Jersey
• AS50304 Blix Solutions AS
• AS17639 Converge ICT Solutions Inc.
• AS48362 Stadtwerke Feldkirch
• AS48185 team.blue NV
• AS29169 GANDI SAS
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS50300 CustodianDC Limited
• AS57463 NetIX Communications JSC
• AS3741 Dimension Data
• AS12552 GlobalConnect AB
• AS3216 PJSC "Vimpelcom"
• AS12779 IT.Gate S.p.A.
• AS37100 SEACOM Limited
• AS9002 RETN Limited
• AS213241 TECHIT.BE SRL
• AS13030 Init7 (Switzerland) Ltd.

Internet exchanges

• LINX LON1 — London, United Kingdom