- Prefix
01689 4- Area
- Orpington
- Number type
- Geographic landline (01/02)
- Format
01689 4XXXXX- From abroad
+44 1689 4XXXXX- Ofcom blocks in range
- 73
- Blocks in service
- 59
- Range holders
- 44
What are 01689 4XXXXX numbers?
Any UK number matching 01689 4XXXXX sits in the
01689 dialling code for Orpington.
Ofcom hands these numbers to communications providers in blocks; this range
contains 73 blocks, of which
59 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Orpington area — or
organisations elsewhere that keep a local 01689 presence using
VoIP.
Who holds 01689 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GCI Network Solutions Limited | 12 | 01689 410XXX |
| BT | 3 | 01689 490XXX |
| Sky UK Limited | 3 | 01689 482XXX |
| AQL Wholesale Ltd | 1 | 01689 42XXXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01689 462XXX |
| Atomstream Limited | 1 | 01689 472XXX |
| Buzz Networks Limited | 1 | 01689 471XXX |
| CFL Communications Ltd | 1 | 01689 464XXX |
| Calltracks Limited | 1 | 01689 473XXX |
| Colt Technology Services | 1 | 01689 487XXX |
| Content Guru Limited | 1 | 01689 481XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01689 498XXX |
…and 32 more providers hold smaller allocations in this range.
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 73 blocks Ofcom lists, 14 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 01689 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01689 caller IDs so their calls look like they come from Orpington (‘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 01689 4XXXXX 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 01689 number ranges
Full 01689 Orpington area-code guide › · All UK area codes ›