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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 |
|---|---|---|---|---|
| Watford | 1923 | 403000 | 403999 | G |
| Watford | 1923 | 404000 | 404999 | G |
| Watford | 1923 | 405000 | 405999 | G |
| Watford | 1923 | 406000 | 406999 | G |
| Watford | 1923 | 440000 | 449999 | G |
| Watford | 1923 | 460000 | 469999 | G |
| Watford | 1923 | 490000 | 499999 | G |
| Lea Valley | 1992 | 300000 | 309999 | G |
| Lea Valley | 1992 | 310000 | 310999 | G |
| Lea Valley | 1992 | 311000 | 311999 | G |
| Lea Valley | 1992 | 312000 | 312999 | G |
| Lea Valley | 1992 | 313000 | 313999 | G |
| Lea Valley | 1992 | 314000 | 314999 | G |
| Lea Valley | 1992 | 316000 | 316999 | G |
| Lea Valley | 1992 | 400000 | 400999 | G |
| Lea Valley | 1992 | 401000 | 401999 | G |
| Lea Valley | 1992 | 402000 | 402999 | G |
| Lea Valley | 1992 | 403000 | 403999 | G |
| Lea Valley | 1992 | 404000 | 404999 | G |
| Lea Valley | 1992 | 410000 | 419999 | G |
| Lea Valley | 1992 | 420000 | 429999 | G |
| Lea Valley | 1992 | 610000 | 619999 | G |
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