Range holder
Subtopia Limited
Subtopia Limited is listed by Ofcom as the originally-allocated provider for 9 UK number ranges, mostly landline (01/02). Numbers within these blocks may have since been ported to a different carrier.
Subtopia Limited at a glance
- Number ranges
- 9
- Number types
- Landline (01/02) 4
- Premium rate (09) 3
- Freephone (080) 1
- UK-wide (03) 1
- First allocation
- 28 July 2015
- Latest allocation
- 8 April 2021
Source: Ofcom numbering data, re-imported weekly. Each range is counted once.
Allocated ranges by year
The year Ofcom allocated each range Subtopia Limited still holds; the busiest year was 2015 (4).
If a number from Subtopia Limited's ranges 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.
All Subtopia Limited ranges9, by prefix
| Prefix | Status |
|---|---|
| +44 121638 | Allocated |
| +44 1283750 | Allocated |
| +44 1384738 | Allocated |
| +44 208160 | Allocated |
| +44 300118 | Allocated |
| +44 8000580 | Allocated |
| +44 984782 | Allocated |
| +44 984783 | Allocated |
| +44 984784 | Allocated |
Related lookups
- Subtopia Limited scam & spam reportsCommunity-reported numbers on this holder's ranges
- 0121 Birmingham1 Subtopia Limited range
- 01283 Burton-upon-Trent1 Subtopia Limited range
- 01384 Dudley1 Subtopia Limited range
- 020 London1 Subtopia Limited range
- (AQ) LIMITEDSibling range holder
- 001 International TelecomSibling range holder
- 08 Numbers LtdSibling range holder
- All range holdersBrowse every Ofcom-listed provider
- All UK area codesEvery 01/02 dialling code
- Top reported UK numbersCross-holder leaderboard
- Lookup any UK numberFree reverse phone lookup
- How Ofcom numbering worksThe UK numbering plan explained
- Range Holder vs current providerCornerstone guide
- Ofcom range holder lookupCornerstone guide
- UK phone number portability explainedCornerstone guide
- VoIP numbers UK — 056 vs 020Cornerstone guide
Frequently asked questions
What does it mean that Subtopia Limited is the range holder?
Ofcom allocated the blocks listed on this page to Subtopia Limited. A number keeps its digits when its user switches provider, so a number in these blocks may now be on another network; Ofcom doesn't publish who a number is on today.
What kinds of numbers does Subtopia Limited hold?
Of its 9 allocated ranges: 4 landline (01/02), 3 premium rate (09), 1 freephone (080), 1 uk-wide (03). The oldest dates from 28 July 2015 and the newest from 8 April 2021.
Which area codes does Subtopia Limited have most numbers in?
By allocated blocks: 0121 Birmingham (1), 01283 Burton-upon-Trent (1), 01384 Dudley (1), 020 London (1).
How often is the Subtopia Limited list updated?
Ofcom publishes its numbering data every Wednesday and this page is rebuilt from it weekly, so new Subtopia Limited blocks appear within about a week.