If you’re an iD Mobile user wondering what it costs to call an 0300 number, the answer is simpler than ever, and good news for most customers.
Below, we break down what you’ll pay in 2025, what Ofcom’s rules say, and why using an 0300 number makes sense for businesses and callers alike.
1. What exactly are the current rules?
- 03 numbers (including 0300, 0330, and 0345) are non-geographic numbers that must be charged the same as standard UK landlines (those starting 01 or 02).
- Inclusive minutes apply – if your iD Mobile plan includes minutes to UK landlines, those also cover 0300 calls.
- No revenue sharing – organisations using 03 numbers can’t profit from calls.
- Regulation in 2025: Ofcom now directly oversees all premium and non-geographic numbering (a role formerly shared with the Phone-paid Services Authority).
- Because of this, pricing for 03 numbers is now fully standardised across UK networks – you’ll never pay more than a landline rate.
2. iD Mobile 2025 pricing overview
Here’s a breakdown of what you’ll pay depending on your plan:
| Type of Plan | Are 0300 Calls Included? | Cost if Minutes Used Up | Notes |
| Pay Monthly (SIM-Only / Contract) | Yes — counted in inclusive minutes | 40–55p/min (same as 01/02 calls) | Charged at standard UK landline rate outside your allowance |
| Pay As You Go (PAYG) | Not included | 40–55p/min | Billed per minute, rounded up to the next whole minute |
| Unlimited Minute Plans | Yes | £0 | No charge, unlimited 01/02/03 calls |
| Older Legacy Tariffs | Usually included | Check plan | Some older iD Mobile bundles may vary — confirm via app or MyAccount |
Example:
A 5-minute 0300 call when you’ve used up your minutes would cost roughly £2.00–£2.75 depending on your per-minute rate.
3. How iD Mobile explains it
According to iD Mobile’s own help pages and community updates:
- Calls to 03 numbers are included in inclusive minutes.
- Once minutes are used up, they are billed at standard UK landline rates – not at the higher ‘non-geographic’ rate that applies to 08/09/118 numbers.
- The published “access charge” of 45p + 45p/min for non-geographic numbers does not apply to 03 numbers.
4. Why 03 numbers benefit businesses
- Transparent pricing: Customers know it won’t cost more than a normal call.
- Nationwide presence: You’re not tied to a specific geographic area code.
- Regulatory compliance: Fully aligned with Ofcom’s 2025 numbering regulations.
- Better caller engagement: People are more likely to dial a number they know isn’t expensive.
Need more info?
Call us on 0330 332 0400 or email support@numbersupermarket.co.uk.
