UK area code
01728 area code — Saxmundham
01728 is Ofcom’s Saxmundham numbering area, in Suffolk, East of England England. 87 phone companies hold its 120 allocated number blocks. Its numbers are written like 01728 234 567. The nearest other codes are 01986 Bungay (27 km) and 01473 Ipswich (29 km).
01728 at a glance
- Ofcom area name
- Saxmundham
- County
- Suffolk
- Council area
- Suffolk
- Region
- East of England England
- Number format
- 01728 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0728)
- Allocated blocks
- 120 of 352 (34%) across 87 providers
- Newest block
- 26 January 2026 (1 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01728 number called you
No clear pattern in reports for these numbers yet. If a call worried you:
- 1
Call back on a number you trust
If a caller says they're your bank, HMRC, a courier or a council, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- 2
Forward it to 7726
On a mobile, copy the caller's number from your recent calls and text it to 7726 (it spells SPAM). Scam texts can be forwarded to 7726 as they are. It's free, and your network uses the reports to investigate and block numbers.
- 3
Stop sales calls
Register your landline and mobile free with the Telephone Preference Service (0345 070 0707). Legitimate UK marketers must check it; calls should drop within 28 days. It won't stop scammers.
- 4
If you lost money or shared details
Call your bank on the number on your card (or 159 to reach most UK banks safely), then report it to Report Fraud online or on 0300 123 2040. Report Fraud replaced Action Fraud on 4 December 2025 for England, Wales and Northern Ireland; in Scotland call Police Scotland on 101.
01728 history and number format
Number format: Numbers on 01728 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01728 234 567.
Before 1995: 01728 took its current form at PhONEday on 16 April 1995, when a "1" was inserted into every UK geographic code — before that the area dialled 0728.
Local dialling: Traditionally not from another 01728 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01728 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01728 was allocated on 15 July 1994, and the most recent on 26 January 2026. 1 block was allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01728 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01728 numbers
Every Ofcom range holder with blocks on 01728, by allocated blocks. The holder is the company Ofcom allocated the block to; a number can since have been ported to another provider (see range holder vs current provider).
| Range holder | Allocated | All blocks | First block | Latest block |
|---|---|---|---|---|
| BT | 15 | 15 | 15 July 1994 | 28 September 2021 |
| GCI Network Solutions Limited | 11 | 11 | 26 April 2017 | 26 February 2024 |
| Sky UK Limited | 3 | 3 | 21 June 2013 | 1 November 2021 |
| TalkTalk Communications Limited | 3 | 3 | 19 January 2012 | 12 February 2013 |
| Colt Technology Services | 2 | 2 | 5 May 2015 | 14 October 2019 |
| Digital Space Group Limited | 2 | 2 | 20 May 2008 | 15 March 2016 |
| Digitech Solutions Global Limited | 2 | 2 | 28 April 2010 | 26 June 2012 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Six Degrees Technology Group Limited | 2 | 2 | 14 January 2020 | 14 January 2020 |
| (AQ) LIMITED | 1 | 1 | 12 September 2012 | 12 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 21 January 2020 | 21 January 2020 |
| 4D Interactive Ltd | 1 | 1 | 8 May 2009 | 8 May 2009 |
| 8x8 Communications UK Limited | 1 | 1 | 10 April 2012 | 10 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 4 August 2006 | 4 August 2006 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 27 March 2009 | 27 March 2009 |
| Atomstream Limited | 1 | 1 | 14 May 2010 | 14 May 2010 |
| Barritel Limited | 1 | 1 | 23 June 2006 | 23 June 2006 |
| Belgacom International Carrier Services SA | 1 | 1 | 24 April 2020 | 24 April 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 11 April 2023 | 11 April 2023 |
| CFL Communications Ltd | 1 | 1 | 15 July 2009 | 15 July 2009 |
| Calltracks Limited | 1 | 1 | 23 September 2013 | 23 September 2013 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| DIDWW Ireland Limited | 1 | 1 | 21 January 2019 | 21 January 2019 |
| Dial 9 Communications Limited | 1 | 1 | 8 January 2020 | 8 January 2020 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 1 | 1 | 11 November 2005 | 11 November 2005 |
| Gamma Telecom Holdings Limited | 1 | 1 | 8 April 2005 | 8 April 2005 |
Showing the 30 largest of 87 holders.
Openreach exchanges at Saxmundham
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
- Saxmundham EASXMStop sell 13-Oct-21 · Tranche 2
All number blocks on 01728first 200 of 352, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 172800 | Protected | — |
| +44 172801 | Protected | — |
| +44 172802 | Protected | — |
| +44 172803 | Protected | — |
| +44 172804 | Protected | — |
| +44 172805 | Protected | — |
| +44 172806 | Protected | — |
| +44 172807 | Protected | — |
| +44 172808 | Protected | — |
| +44 172809 | Protected | — |
| +44 172810 | Protected | — |
| +44 172811 | Protected | — |
| +44 172812 | Protected | — |
| +44 172813 | Protected | — |
| +44 172814 | Protected | — |
| +44 172815 | Protected | — |
| +44 172816 | Protected | — |
| +44 172817 | Protected | — |
| +44 172818 | Protected | — |
| +44 172819 | Protected | — |
| +44 172820 | Allocated | Redcentric Solutions Limited |
| +44 172821 | Protected | — |
| +44 172822 | Allocated | Net-Work Internet Ltd |
| +44 172823 | Allocated | Telecom2 Limited |
| +44 172824 | Allocated | Digital Space Group Limited |
| +44 172825 | Allocated | Nodemax Limited |
| +44 172826 | Protected | — |
| +44 172827 | Protected | — |
| +44 1728280 | Allocated | Voxbone SA |
| +44 1728281 | Protected | — |
| +44 1728282 | Protected | — |
| +44 1728283 | Protected | — |
| +44 1728284 | Protected | — |
| +44 1728285 | Protected | — |
| +44 1728286 | Protected | — |
| +44 1728287 | Protected | — |
| +44 1728288 | Protected | — |
| +44 1728289 | Protected | — |
| +44 172829 | Allocated | Served Up Limited |
| +44 172830 | Allocated | Solutios Limited |
| +44 1728310 | Protected | — |
| +44 1728311 | Protected | — |
| +44 1728312 | Protected | — |
| +44 1728313 | Protected | — |
| +44 1728314 | Protected | — |
| +44 1728315 | Protected | — |
| +44 1728316 | Protected | — |
| +44 1728317 | Allocated | Digital Space Group Limited |
| +44 1728318 | Protected | — |
| +44 1728319 | Protected | — |
| +44 172832 | Quarantined | — |
| +44 172833 | Allocated | Mars Communications Limited |
| +44 172834 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 172835 | Allocated | 4D Interactive Ltd |
| +44 1728360 | Allocated | GCI Network Solutions Limited |
| +44 1728361 | Allocated | GCI Network Solutions Limited |
| +44 1728362 | Allocated | GCI Network Solutions Limited |
| +44 1728363 | Allocated | GCI Network Solutions Limited |
| +44 1728364 | Allocated | GCI Network Solutions Limited |
| +44 1728365 | Allocated | GCI Network Solutions Limited |
| +44 1728366 | Allocated | GCI Network Solutions Limited |
| +44 1728367 | Allocated | GCI Network Solutions Limited |
| +44 1728368 | Allocated | GCI Network Solutions Limited |
| +44 1728369 | Allocated | GCI Network Solutions Limited |
| +44 172837 | Allocated | Nexus Telecommunications Limited |
| +44 172838 | Allocated | Telecoms World Limited |
| +44 172839 | Allocated | Invade International Ltd |
| +44 172840 | Allocated | BT |
| +44 1728410 | Allocated | Linear Telecoms Limited |
| +44 1728411 | Allocated | Hello Telecom (UK) Limited |
| +44 1728412 | Allocated | Internexus Networks Limited |
| +44 1728413 | Allocated | Bicom Systems EURL |
| +44 1728414 | Protected | — |
| +44 1728415 | Allocated | Orbtalk Limited |
| +44 1728416 | Protected | — |
| +44 1728417 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1728418 | Allocated | 8x8 Communications UK Limited |
| +44 1728419 | Allocated | ICC Networks Ltd |
| +44 1728420 | Protected | — |
| +44 1728421 | Protected | — |
| +44 1728422 | Protected | — |
| +44 1728423 | Protected | — |
| +44 1728424 | Protected | — |
| +44 1728425 | Protected | — |
| +44 1728426 | Protected | — |
| +44 1728427 | Protected | — |
| +44 1728428 | Protected | — |
| +44 1728429 | Protected | — |
| +44 1728430 | Protected | — |
| +44 1728431 | Protected | — |
| +44 1728432 | Protected | — |
| +44 1728433 | Protected | — |
| +44 1728434 | Protected | — |
| +44 1728435 | Protected | — |
| +44 1728436 | Protected | — |
| +44 1728437 | Protected | — |
| +44 1728438 | Protected | — |
| +44 1728439 | Protected | — |
| +44 172844 | Allocated | Gamma Telecom Holdings Limited |
| +44 172845 | Allocated | BT |
| +44 172846 | Allocated | Vodafone Ltd (C&W) |
| +44 172847 | Protected | — |
| +44 1728480 | Protected | — |
| +44 1728481 | Protected | — |
| +44 1728482 | Protected | — |
| +44 1728483 | Protected | — |
| +44 1728484 | Protected | — |
| +44 1728485 | Protected | — |
| +44 1728486 | Protected | — |
| +44 1728487 | Protected | — |
| +44 1728488 | Protected | — |
| +44 1728489 | Protected | — |
| +44 172849 | Allocated | TTNC Limited |
| +44 172850 | Quarantined | — |
| +44 172851 | Allocated | CFL Communications Ltd |
| +44 172852 | Protected | — |
| +44 1728530 | Protected | — |
| +44 1728531 | Allocated | Verizon UK Limited |
| +44 1728532 | Protected | — |
| +44 1728533 | Protected | — |
| +44 1728534 | Protected | — |
| +44 1728535 | Protected | — |
| +44 1728536 | Protected | — |
| +44 1728537 | Protected | — |
| +44 1728538 | Protected | — |
| +44 1728539 | Protected | — |
| +44 172854 | Allocated | X-on Health Limited |
| +44 1728550 | Allocated | Digitech Solutions Global Limited |
| +44 1728551 | Allocated | Suretec Systems Ltd |
| +44 1728552 | Allocated | Atomstream Limited |
| +44 1728553 | Allocated | Calltracks Limited |
| +44 1728554 | Allocated | Simwood eSMS Limited |
| +44 1728555 | Allocated | Windsor Telecom Limited |
| +44 1728556 | Allocated | Telephone Box Limited |
| +44 1728557 | Protected | — |
| +44 1728558 | Allocated | Phone Co-Op Numbering Limited |
| +44 1728559 | Protected | — |
| +44 1728560 | Allocated | Invosys Limited |
| +44 1728561 | Allocated | Sky UK Limited |
| +44 1728562 | Allocated | Nexbridge Communications Limited |
| +44 1728563 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1728564 | Allocated | TalkTalk Communications Limited |
| +44 1728565 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1728566 | Allocated | Number Services Ltd. |
| +44 1728567 | Allocated | IP Voice Networks Ltd |
| +44 1728568 | Allocated | Zapappi Ltd |
| +44 1728569 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1728570 | Allocated | Ziron Limited |
| +44 1728571 | Allocated | Redwood Technologies Ltd |
| +44 1728572 | Allocated | IOVOX Limited |
| +44 1728573 | Allocated | Kalnet4U Ltd |
| +44 1728574 | Allocated | Invoco Ltd |
| +44 1728575 | Allocated | Content Guru Limited |
| +44 1728576 | Allocated | Minotaur Telecom Limited |
| +44 1728577 | Protected | — |
| +44 1728578 | Allocated | Nuso Cloud UK Limited |
| +44 1728579 | Allocated | XoverX Ltd |
| +44 1728580 | Allocated | YayYay Limited |
| +44 1728581 | Protected | — |
| +44 1728582 | Allocated | Sky UK Limited |
| +44 1728583 | Protected | — |
| +44 1728584 | Allocated | Adepteo Limited |
| +44 1728585 | Allocated | Colt Technology Services |
| +44 1728586 | Protected | — |
| +44 1728587 | Allocated | Fuse 2 Communications Ltd |
| +44 1728588 | Allocated | Fuse 2 Communications Ltd |
| +44 1728589 | Allocated | I.T Communications Limited |
| +44 1728590 | Allocated | EVE CONNECT LTD |
| +44 1728591 | Allocated | SiPalto Ltd |
| +44 1728592 | Allocated | Colt Technology Services |
| +44 1728593 | Allocated | Orbital Net Limited |
| +44 1728594 | Allocated | Mi Telecom Limited |
| +44 1728595 | Allocated | Belgacom International Carrier Services SA |
| +44 1728596 | Allocated | ICUK Computing Services Limited |
| +44 1728597 | Allocated | Dial 9 Communications Limited |
| +44 1728598 | Allocated | BT |
| +44 1728599 | Allocated | DIDWW Ireland Limited |
| +44 172860 | Allocated | BT |
| +44 172861 | Allocated | Flextel Limited |
| +44 172862 | Allocated | BT |
| +44 172863 | Allocated | BT |
| +44 172864 | Allocated | BT |
| +44 172865 | Allocated | BT |
| +44 172866 | Allocated | BT |
| +44 1728670 | Protected | — |
| +44 1728671 | Protected | — |
| +44 1728672 | Protected | — |
| +44 1728673 | Protected | — |
| +44 1728674 | Protected | — |
| +44 1728675 | Protected | — |
| +44 1728676 | Protected | — |
| +44 1728677 | Allocated | Spitfire Network Services Limited |
| +44 1728678 | Protected | — |
| +44 1728679 | Protected | — |
| +44 172868 | Allocated | BT |
| +44 172869 | Allocated | TelNG Limited |
| +44 1728700 | Protected | — |
| +44 1728701 | Allocated | Six Degrees Technology Group Limited |
| +44 1728702 | Protected | — |
| +44 1728703 | Protected | — |
Related lookups
- 01986 Bungay27 km away
- 01473 Ipswich29 km away
- 01394 Felixstowe29 km away
- 01379 Diss32 km away
- BT15 allocated blocks on 01728
- GCI Network Solutions Limited11 allocated blocks on 01728
- Sky UK Limited3 allocated blocks on 01728
- All UK towns A–ZDialling codes by town
- More Suffolk codesSame region
- All UK area codesBrowse every 01/02 dialling code
- Lookup any UK numberFree reverse phone lookup
- UK area codes explainedCornerstone guide
- 020 London numbers explainedCornerstone guide
- 0330 numbers explainedCornerstone guide
- How Ofcom allocates UK phone numbersCornerstone guide
FAQs about 01728
Where is area code 01728?
01728 is Ofcom's Saxmundham numbering area, in Suffolk, East of England England. Its exchange town is in Suffolk. From abroad, drop the 0 and dial +44 1728.
Do I need to dial 01728 for a local call?
Traditionally not from another 01728 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01728 first always works, and mobiles always need it.
How are 01728 numbers written?
Numbers on 01728 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01728 234 567. From abroad the leading zero is dropped: +44 1728 then the local number.
What was the 01728 area code before?
01728 took its current form at PhONEday on 16 April 1995, when a "1" was inserted into every UK geographic code — before that the area dialled 0728. Old signage or stationery showing 0728 refers to the same Saxmundham numbers.
Which phone companies hold 01728 numbers?
Ofcom lists 87 providers with allocated blocks on 01728. The largest are BT with 15 of the 120 allocated blocks, GCI Network Solutions Limited with 11 of the 120 allocated blocks and Sky UK Limited with 3 of the 120 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Which area codes are next to 01728?
By distance between exchange towns, the nearest other codes are 01986 Bungay (27 km), 01473 Ipswich (29 km), 01394 Felixstowe (29 km) and 01379 Diss (32 km).
How do I report a scam call from a 01728 number?
On a mobile, text the caller's number to 7726 (free). If you lost money or shared details, call your bank and report it to Report Fraud (0300 123 2040), which replaced Action Fraud in December 2025. Unwanted sales calls go to the ICO after registering with the Telephone Preference Service.