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Region Carrier Name:Hertfordshire
This is the United Kingdom Region Carrier Name:Hertfordshire Area Code Database page list. You can click the title to browse the detail information.
| City | National Destination Code | Sn from | Sn to | Number Type |
|---|---|---|---|---|
| Bishops Stortford | 1279 | 540000 | 549999 | G |
| Bishops Stortford | 1279 | 910000 | 910999 | G |
| Stevenage | 1438 | 930000 | 939999 | G |
| Hemel Hempstead | 1442 | 660000 | 669999 | G |
| Hitchin | 1462 | 460000 | 469999 | G |
| Welwyn Garden City | 1707 | 540000 | 549999 | G |
| St Albans | 1727 | 440000 | 449999 | G |
| St Albans | 1727 | 539000 | 539999 | G |
| Royston | 1763 | 350000 | 359999 | G |
| Ware | 1920 | 300000 | 309999 | G |
| Watford | 1923 | 373000 | 373999 | G |
| Lea Valley | 1992 | 790000 | 799999 | G |
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