This page contains information about which telephone companies the various 01210 numbers are allocated to.
| First Digits | Status | Communications Provider | Number Length | Change |
|---|---|---|---|---|
| 0121 000 | Allocated | FleXtel Limited | (0)+10 | 22/03/2005 |
| 0121 001 | Allocated | Oxygen8 Communications UK Limited | (0)+10 | 13/01/2006 |
| 0121 002 | Allocated | IPV6 Limited | (0)+10 | 22/01/2009 |
| 0121 003 | Allocated | Virgin Media Limited | (0)+10 | 15/06/2000 |
| 0121 004 | Allocated | IDT Global Ltd | (0)+10 | 20/09/2002 |
| 0121 005 | Allocated | NewVoiceMedia Limited | (0)+10 | 09/10/2012 |
| 01210 06 | Free for National Dialling Only | - | (0)+10 | - |
| 0121 007 | Allocated | Syntec Limited | (0)+10 | 20/11/2013 |
| 01210 08 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 09 | Free for National Dialling Only | - | (0)+10 | - |
| 0121 010 | Allocated | TalkTalk Communications Limited | (0)+10 | 09/10/2003 |
| 01210 11 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 12 | Free for National Dialling Only | - | (0)+10 | - |
| 0121 013 | Allocated | Virgin Media Wholesale Limited | (0)+10 | 28/10/2009 |
| 0121 014 | Allocated | Virgin Media Wholesale Limited | (0)+10 | 28/10/2009 |
| 01210 15 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 16 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 17 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 18 | Free for National Dialling Only | - | (0)+10 | - |
| 0121 019 | Allocated | Affiniti Integrated Solutions Ltd | (0)+10 | 14/08/2012 |
| 01210 20 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 21 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 22 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 23 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 24 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 25 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 26 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 27 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 28 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 29 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 30 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 31 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 32 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 33 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 34 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 35 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 36 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 37 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 38 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 39 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 40 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 41 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 42 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 43 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 44 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 45 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 46 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 47 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 48 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 49 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 50 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 51 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 52 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 53 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 54 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 55 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 56 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 57 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 58 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 59 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 60 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 61 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 62 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 63 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 64 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 65 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 66 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 67 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 68 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 69 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 70 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 71 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 72 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 73 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 74 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 75 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 76 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 77 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 78 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 79 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 80 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 81 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 82 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 83 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 84 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 85 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 86 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 87 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 88 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 89 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 90 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 91 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 92 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 93 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 94 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 95 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 96 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 97 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 98 | Free for National Dialling Only | - | (0)+10 | - |
| 01210 99 | Free for National Dialling Only | - | (0)+10 | - |