Dialling code
01388
Area
Bishop Auckland
Number type
Geographic landline (01/02)
Local format
01388 XXXXXX
From abroad
+44 1388 XXXXXX
Ofcom number blocks
604
Blocks in service
213
Range holders
95

Where is the 01388 area code?

The 01388 dialling code is the UK geographic area code for Bishop Auckland. Because 01388 is a geographic (01/02) code, a number using it is tied to the Bishop Auckland dialling-code area — though with modern hosted telephony (VoIP) a business can keep a 01388 number after moving premises, so the code reflects the number’s designated area rather than a guaranteed physical location today.

Ofcom currently lists 604 number blocks under 01388, of which 213 are allocated to 95 communications providers.

Bishop Auckland phone number format

A Bishop Auckland number is made up of a 5-digit area code followed by a 5 or 6-digit local number. Written in full it looks like 01388 XXXXXX (the Xs stand for the local digits). Ofcom has not reserved a fictitious drama range for 01388; for on-screen examples it recommends the unused 01632 96000001632 960999 range.

Who holds 01388 number ranges?

Ofcom allocates 01388 numbers to providers in blocks. These providers hold the largest allocations under 01388:

Range holder (allocated by Ofcom)Number blocksExample range
GCI Network Solutions Limited2301388 220XXX
BT2101388 335XXX
Sky UK Limited1101388 227XXX
Gamma Telecom Holdings Limited901388 217XXX
TalkTalk Communications Limited801388 205XXX
Magrathea Telecommunications Limited701388 540XXX
Digital Space Group Limited401388 208XXX
IOVOX Limited401388 236XXX

…and 87 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.

01388 number ranges

Browse the allocated 01388 ranges by their first local digit — each guide lists the providers holding that slice of Bishop Auckland’s numbers:

Call charges for 01388 numbers

Calls to 01388 geographic numbers are charged at your phone provider’s standard UK landline rate and are normally included in inclusive call minutes. UK-wide 03 numbers are guaranteed by Ofcom to cost the same as 01/02 calls, while 084, 087 and 09 numbers cost considerably more — always check the prefix before you dial.

Spotting spoofed 01388 scam calls

Fraudsters frequently spoof local dialling codes, faking the caller ID so a scam call appears to come from a Bishop Auckland (01388) number you might trust. Remember:

  • A familiar 01388 area code is not proof the caller is local or genuine — caller ID can be faked.
  • Banks, HMRC and the police will never ask you to move money or share passwords or one-time codes over the phone.
  • If a call feels off, hang up, wait a moment, and call the organisation back on a number from their official website or your statement.
  • Report nuisance calls to the ICO and forward scam texts to 7726 (free).

Other dialling codes in this range

Numerically adjacent UK dialling codes:

Browse all UK area-code guides ›

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