Range holder · Alton
Calltracks Limited in Alton
01420 numbering ranges allocated by Ofcom
About Calltracks Limited’s Alton allocation
When Calltracks Limited is the range holder for +44 1420 it means Ofcom recorded Calltracks Limited as the provider entitled to issue numbers from these blocks when they were first allocated under the UK National Telephone Numbering Plan. 2 Alton-facing blocks sit against Calltracks Limited in the current Ofcom snapshot, each of which can carry up to ten thousand individual digits available for assignment to end customers.
Alton’s Hampshire telecoms estate is shaped by Alton's residential and business catchment: a dense urban exchange typically hosts allocations from several national operators in parallel, which is why you see Calltracks Limited’s blocks alongside other range holders on the same 01420 code. Local switching capacity, historic Openreach exchange footprints, and Calltracks Limited’s wholesale routing arrangements all influence which blocks land in Alton 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 01420 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.
Calltracks Limited on 01420: by the numbers
- Alton blocks
- 2
- In active service
- 100%
- Share of 01420
- 0%
- Holders on code
- 96
Of the 2 blocks Calltracks Limited runs on the 01420 code, 2 (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 Alton Calltracks Limited number is likely to be before you even dial it back.
Calltracks Limited runs 2 of the 794 allocated blocks on the 01420 dialling code — roughly 0% of Alton’s mapped allocation, shared with 95 other range holders. Most are listed as "Allocated", which means the block is currently in active service with a communications provider.
Allocated ranges
Calltracks Limited blocks on the 01420 (Alton) dialling code.
| Prefix | Status |
|---|---|
| +44 1420381 | Allocated |
| +44 1420381 | Allocated |
Quick links
- Calltracks LimitedAll Calltracks Limited ranges
- 01420 AltonAll numbers on 01420
- AltonMore on Alton
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- Calltracks Limited in AbergavennyCalltracks Limited ranges in Abergavenny
- Calltracks Limited in AboyneCalltracks Limited ranges in Aboyne
- Calltracks Limited in AlnwickCalltracks Limited ranges in Alnwick
- All range holdersEvery Ofcom-listed provider
- Lookup any UK numberFree reverse phone lookup
FAQs about Calltracks Limited on 01420
Why does Calltracks Limited appear on Alton (01420) numbers?
Calltracks Limited is listed in Ofcom's UK Numbering Data feed as the originally-allocated range holder for 2 number blocks on the 01420 dialling code, which covers Alton. That allocation pre-dates any individual customer — it simply means Ofcom recognised Calltracks Limited as the wholesale operator entitled to issue those digits when the block was first allocated.
Are calls from a Alton Calltracks 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 01420 number into the lookup above to combine the Calltracks Limited range data with a live AI internet check for forum reports, scam databases, and business listings.
Has Calltracks Limited's 01420 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.