Range holder · Isle of Man

Sure (Isle of Man) Limited in Isle of Man

01624 numbering ranges allocated by Ofcom

About Sure (Isle of Man) Limited’s Isle of Man allocation

When Sure (Isle of Man) Limited is the range holder for +44 1624 it means Ofcom recorded Sure (Isle of Man) Limited as the provider entitled to issue numbers from these blocks when they were first allocated under the UK National Telephone Numbering Plan. 8 Isle of Man-facing blocks sit against Sure (Isle of Man) Limited in the current Ofcom snapshot, each of which can carry up to ten thousand individual digits available for assignment to end customers.

Isle of Man’s Isle of Man telecoms estate is shaped by Isle of Man's residential and business catchment: a dense urban exchange typically hosts allocations from several national operators in parallel, which is why you see Sure (Isle of Man) Limited’s blocks alongside other range holders on the same 01624 code. Local switching capacity, historic Openreach exchange footprints, and Sure (Isle of Man) Limited’s wholesale routing arrangements all influence which blocks land in Isle of Man rather than elsewhere on the national plan.

Treat this allocation as a starting point, not a verdict on any specific caller. UK numbers are portable, so the current carrier on a given 01624 digit string may differ from the range holder shown — read Range Holder vs current provider for the distinction, and How Ofcom allocates UK phone numbers for the wider context behind the table below.

Sure (Isle of Man) Limited on 01624: by the numbers

Isle of Man blocks: 8
In active service: 100%
Share of 01624: 1%
Holders on code: 4

Of the 8 blocks Sure (Isle of Man) Limited runs on the 01624 code, 8 (100%) are marked as actively allocated in the current Ofcom snapshot.

By number family these blocks are 100% geographic (01 / 02) — a profile that tells you what kind of caller a Isle of Man Sure (Isle of Man) Limited number is likely to be before you even dial it back.

Sure (Isle of Man) Limited runs 8 of the 1,227 allocated blocks on the 01624 dialling code — roughly 1% of Isle of Man’s mapped allocation, shared with 3 other range holders. Most are listed as "Allocated", which means the block is currently in active service with a communications provider.

Allocated ranges

Sure (Isle of Man) Limited blocks on the 01624 (Isle of Man) dialling code.

Prefix	Status
+44 1624770	Allocated
+44 1624770	Allocated
+44 1624777	Allocated
+44 1624777	Allocated
+44 1624778	Allocated
+44 1624778	Allocated
+44 1624779	Allocated
+44 1624779	Allocated

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FAQs about Sure (Isle of Man) Limited on 01624

Why does Sure (Isle of Man) Limited appear on Isle of Man (01624) numbers?

Sure (Isle of Man) Limited is listed in Ofcom's UK Numbering Data feed as the originally-allocated range holder for 8 number blocks on the 01624 dialling code, which covers Isle of Man. That allocation pre-dates any individual customer — it simply means Ofcom recognised Sure (Isle of Man) Limited as the wholesale operator entitled to issue those digits when the block was first allocated.

Are calls from a Isle of Man Sure (Isle of Man) Limited-allocated number safe?

An Ofcom allocation only tells you which provider the block was issued to; it is not a safety verdict. UK numbers can be ported between networks, and any UK area code can be spoofed by an overseas caller. Paste the specific 01624 number into the lookup above to combine the Sure (Isle of Man) Limited range data with a live AI internet check for forum reports, scam databases, and business listings.

Has Sure (Isle of Man) Limited's 01624 block been updated recently?

Yes — the table above is sourced from Ofcom's public UK Numbering Data feed, which we re-ingest every week (typically Wednesday). Any block that has been re-assigned, withdrawn or marked free will appear with its new status on the next refresh. Numbers within an allocated block can still be ported to another carrier in between Ofcom updates; see our range-holder-vs-current-provider guide for the distinction.