- Prefix
01638 2- Area
- Newmarket
- Number type
- Geographic landline (01/02)
- Format
01638 2XXXXX- From abroad
+44 1638 2XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 6
- Range holders
- 6
What are 01638 2XXXXX numbers?
Any UK number matching 01638 2XXXXX sits in the
01638 dialling code for Newmarket.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
6 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Newmarket area — or
organisations elsewhere that keep a local 01638 presence using
VoIP.
Who holds 01638 2… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Barritel Limited | 1 | 01638 25XXXX |
| Redcentric Solutions Limited | 1 | 01638 24XXXX |
| Spitfire Network Services Limited | 1 | 01638 277XXX |
| TTNC Limited | 1 | 01638 28XXXX |
| TelNG Limited | 1 | 01638 21XXXX |
| Voiceflex Limited | 1 | 01638 26XXXX |
Ofcom’s data shows the provider each number range was originally allocated to — not who holds an individual number today. Numbers are frequently moved (ported) between providers, and no public database reveals the person or business behind a specific number, so treat any service that claims to with suspicion.
Not every block in this range is in service: of the 37 blocks Ofcom lists, 31 are protected (reserved by Ofcom and not in use). A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01638 2… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01638 caller IDs so their calls look like they come from Newmarket (‘neighbour spoofing’). If an unexpected caller asks for personal, banking or one-time-code details, hang up and ring the organisation back on a number you find independently. To put a name to a caller, see who called me?; to report one, see how to report a scam number.
Check a specific 01638 2XXXXX number
Paste any full number into the checker above (or on the main phone number checker) to see its exact range holder and allocation status from this week’s Ofcom data.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01638 number ranges
Full 01638 Newmarket area-code guide › · All UK area codes ›