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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 | 200000 | 209999 | G |
| Hemel Hempstead | 1442 | 310000 | 319999 | G |
| Hitchin | 1462 | 280000 | 289999 | G |
| Welwyn Garden City | 1707 | 200000 | 209999 | G |
| St Albans | 1727 | 200000 | 209999 | G |
| Watford | 1923 | 390000 | 399999 | G |
| Watford | 1923 | 564000 | 564999 | G |
| Watford | 1923 | 565000 | 565999 | G |
| Watford | 1923 | 567000 | 567999 | G |
| Lea Valley | 1992 | 258000 | 258999 | G |
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