Ofcom Telecoms Ioi Numbers
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UK Numbering Plan from Ofcom's website - UK Numbering Policy section of Ofcom's website - UK National Telephone Numbering Plan (in PDF format) |
Ofcom Telecoms Ioi Numbers Web Site |
| Ofcom Telecoms Ioi Numbers - Exchange Code - England Phones |
Ofcom Telecoms Ioi Numbers - Exchange Code - England Phones |
| Ofcom Telecoms Ioi Numbers England |