This page contains information about which telephone companies the various 03701 numbers are allocated to.
| First Digits | Status | Communications Provider | Change |
|---|---|---|---|
| 0370 100 | Protected | - | - |
| 0370 101 | Allocated | Premium O Limited | 10/2012 |
| 0370 102 | Allocated | Premium O Limited | 10/2012 |
| 0370 103 | Allocated | Premium O Limited | 10/2012 |
| 0370 104 | Allocated | Premium O Limited | 10/2012 |
| 0370 105 | Allocated | Premium O Limited | 10/2012 |
| 0370 106 | Allocated | Premium O Limited | 10/2012 |
| 0370 107 | Allocated | Premium O Limited | 10/2012 |
| 0370 108 | Allocated | Premium O Limited | 10/2012 |
| 0370 109 | Allocated | Premium O Limited | 10/2012 |
| 0370 110 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 111 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0370 112 | Allocated | TalkTalk Communications Limited | 07/2008 |
| 0370 113 | Protected | - | - |
| 0370 114 | Allocated | Vodafone Ltd (C&W) | 05/2009 |
| 0370 115 | Protected | - | - |
| 0370 116 | Allocated | Vodafone Ltd (Thus) | 01/2012 |
| 0370 117 | Protected | - | - |
| 0370 118 | Protected | - | - |
| 0370 119 | Protected | - | - |
| 0370 120 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 121 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 122 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 123 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 124 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 125 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 126 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 127 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 128 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 129 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 130 | Allocated | COLT Technology Services | 04/2007 |
| 0370 131 | Allocated | COLT Technology Services | 04/2007 |
| 0370 132 | Allocated | COLT Technology Services | 04/2007 |
| 0370 133 | Allocated | COLT Technology Services | 04/2007 |
| 0370 134 | Allocated | COLT Technology Services | 04/2007 |
| 0370 135 | Allocated | COLT Technology Services | 04/2007 |
| 0370 136 | Allocated | COLT Technology Services | 04/2007 |
| 0370 137 | Allocated | COLT Technology Services | 04/2007 |
| 0370 138 | Allocated | COLT Technology Services | 04/2007 |
| 0370 139 | Allocated | COLT Technology Services | 04/2007 |
| 0370 140 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 141 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 142 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 143 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 144 | Protected | - | - |
| 0370 145 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 146 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 147 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 148 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 149 | Allocated | Affiniti Integrated Solutions Ltd | 05/2007 |
| 0370 150 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 151 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 152 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 153 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 154 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 155 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 156 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 157 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 158 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 159 | Allocated | Vodafone Ltd (C&W) | 03/2010 |
| 0370 160 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 161 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 162 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 163 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 164 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 165 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 166 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 167 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 168 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 169 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 170 | Allocated | Vodafone Ltd (Thus) | 06/2007 |
| 0370 171 | Protected | - | - |
| 0370 172 | Protected | - | - |
| 0370 173 | Protected | - | - |
| 0370 174 | Protected | - | - |
| 0370 175 | Allocated | Telecom2 Ltd | 10/2009 |
| 0370 176 | Protected | - | - |
| 0370 177 | Protected | - | - |
| 0370 178 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 179 | Allocated | TalkTalk Communications Limited | 04/2014 |
| 0370 180 | Protected | - | - |
| 0370 181 | Protected | - | - |
| 0370 182 | Allocated | Magrathea Telecommunications Limited | 02/2014 |
| 0370 183 | Allocated | Gamma Telecom Holdings Ltd | 07/2013 |
| 0370 184 | Protected | - | - |
| 0370 185 | Protected | - | - |
| 0370 186 | Allocated | Core Telecom Limited | 02/2014 |
| 0370 187 | Protected | - | - |
| 0370 188 | Allocated | Oxygen8 Communications UK Limited | 01/2008 |
| 0370 189 | Protected | - | - |
| 0370 190 | Allocated | Vodafone Ltd (Energis) | 04/2007 |
| 0370 191 | Allocated | BT | 04/2007 |
| 0370 192 | Allocated | BT | 04/2007 |
| 0370 193 | Allocated | BT | 04/2007 |
| 0370 194 | Allocated | BT | 04/2007 |
| 0370 195 | Allocated | BT | 04/2007 |
| 0370 196 | Allocated | Virgin Media Limited | 07/2008 |
| 0370 197 | Allocated | BT | 04/2007 |
| 0370 198 | Protected | - | - |
| 0370 199 | Allocated | Vodafone Ltd (C&W) | 04/2007 |