Telephone Code Index - 01842
| 765634 | AFS Animal Care Ltd - Thetford |
| 890231 | Alfred Heading & Sons Ltd. - Thetford |
| 861669 | Brian Palmer - Brandon |
| 753551 | Chambers Farming Group Ltd. - Thetford |
| 890419 | David Stennett Ltd. - Bury St Edmunds |
| 860302 | E Harrison & Sons - Brandon |
| 828215 | E W Porter & Son - Thetford |
| 890223 | Elveden Farms Ltd. - Thetford |
| 763752 | Fotolec Technologies Ltd - Thetford |
| 815500 | Frederick Hiam Foods - Brandon |
| 752100 | Goucher G R - Thetford |
| 754061 | J A & P E Wright - Thetford |
| 828222 | J S Young Farms - Thetford |
| 827641 | J.Peacock & Sons Ltd - Thetford |
| 753271 | Kemps Herbs - Thetford |
| 828004 | Niagri Engineering Ltd - Thetford |
| 810268 | Paul Childerhouse - Brandon |
| 860325 | R E Smith - Brandon |
| 810317 | R N Parrott - Brandon |
| 861833 | Rooke F W M - Brandon |
| 861148 | Roughts Poultry Ltd. - Brandon |
| 878922 | The Iceni Brewery-Munford - Thetford |
| 828888 | Trevor C Cobbold (Agricultural) Ltd. - Thetford |