01473 Area Code
The dialling code for Ipswich: what 01473 numbers are, who holds them, and what to do about a call you don't recognise.
What Is the 01473 Area Code?
Ipswich landline number. 01473 is the dialling code for Ipswich. Numbers starting 01473 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Ipswich.
Who was the range allocated to?
Ofcom has allocated 01473 numbers to 115 providers. The largest holders are BT, Virgin Media Limited and Gamma Telecom Holdings Limited.
Numbers can be moved (ported) between networks, so the network a caller uses today may not be the one Ofcom allocated the block to. The allocation does not identify the person or business using a number.
Had a call from a 01473 number you don't recognise?
We can't tell you who called: an area code only shows the type of number and the provider Ofcom allocated the range to.
- Don't call back in a hurry, even if a message says it's urgent. Never give bank details or security codes on a call you didn't expect.
- Block the number from your phone's recent calls list.
- Forward scam texts free to 7726. Report unwanted marketing calls to the ICO, and see Ofcom's advice on scam calls.
- Register your number with the Telephone Preference Service to opt out of sales calls.
About the 01473 Range
| Number type | Ipswich landline number |
|---|---|
| Area | Ipswich |
| Number format | 01473 XXXXXX |
| Allocated by Ofcom | 70% of the range, to 115 providers |
| First allocation on record | 15 July 1994 |
| Most recent allocation | 10 July 2026 |
Largest holders of 01473 numbers
| Provider (as allocated by Ofcom) | Share of range | First allocated |
|---|---|---|
| BT | 38% | 15 July 1994 |
| Virgin Media Limited | 5% | 15 July 1994 |
| Gamma Telecom Holdings Limited | 3% | 5 April 2004 |
| Vodafone Ltd (C&W) | 2% | 18 June 2013 |
| Sky UK Limited | 2% | 20 June 2013 |
| Verizon UK Limited | 1% | 24 November 2004 |
109 more providers hold smaller blocks.
Allocation data: Ofcom numbering data, as published 28 October 2026.
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Common Questions About 01473 Numbers
Where is the 01473 area code?
01473 is the dialling code for Ipswich. Numbers starting 01473 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Ipswich.
Is 01473 a mobile number?
No. 01473 is a landline (geographic) area code for Ipswich. UK mobile numbers start with 07.
Who does the 01473 range belong to?
Ofcom has allocated 01473 numbers to 115 providers. The largest holders are BT, Virgin Media Limited and Gamma Telecom Holdings Limited. Numbers can be moved (ported) between networks, so the network a caller uses today may not be the one Ofcom allocated the block to. The allocation does not identify the person or business using a number.
Who called me from a 01473 number?
We can't tell you who called. An area code only shows the type of number and which provider Ofcom allocated the range to. If you don't recognise a 01473 number, don't call back in a hurry, and never give out bank details or security codes on a call you didn't expect.
Block the number from your phone's recent calls list. Forward scam texts free to 7726, report unwanted marketing calls to the ICO, and see Ofcom's advice on scam calls.