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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 | 393000 | 393999 | G |
| Bishops Stortford | 1279 | 394000 | 394999 | G |
| Stevenage | 1438 | 440000 | 449999 | G |
| Hemel Hempstead | 1442 | 510000 | 510999 | G |
| Hemel Hempstead | 1442 | 511000 | 511999 | G |
| Hemel Hempstead | 1442 | 554000 | 554999 | G |
| Hemel Hempstead | 1442 | 555000 | 555999 | G |
| Hitchin | 1462 | 240000 | 249999 | G |
| Welwyn Garden City | 1707 | 782000 | 782999 | G |
| Welwyn Garden City | 1707 | 783000 | 783999 | G |
| St Albans | 1727 | 330000 | 339999 | G |
| Royston | 1763 | 590000 | 599999 | G |
| Ware | 1920 | 600000 | 609999 | G |
| Watford | 1923 | 522000 | 522999 | G |
| Lea Valley | 1992 | 433000 | 433999 | G |
| Lea Valley | 1992 | 434000 | 434999 | G |
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