Telephone Dialing Codes

Dialling Code Exchange
01994 St Clears
01982 Builth Wells
01978 Wrexham
01970 Aberystwyth
01938 Welshpool
01874 Brecon
01873 Abergavenny
01834 Narberth
01824 Ruthin
01792 Swansea
01766 Porthmadog
01758 Pwllheli
01745 Rhyl
01691 Oswestry (England)
01690 Betws-y-Coed
01686 Llanidloes & Newtown
01685 Merthyr Tydfil
01678 Bala
01656 Bridgend
01654 Machynlleth
01650 Cemmaes Road
01646 Milford Haven
01639 Neath
01633 Newport
01600 Monmouth
01597 Llandrindod Wells
01591 Llanwrtyd Wells
01570 Lampeter
01559 Llandysul
01558 Llandeilo
01554 Llanelli
01550 Llandovery
01547 Knighton
01545 Llanarth
01497 Hay on Wye
01495 Pontypool
01492 Colwyn Bay
01490 Corwen
01446 Barry
01443 Pontypridd
01437 Clynderwen & Haverfordwest
01407 Holyhead
01352 Mold
01348 Fishguard
01291 Chepstow
01286 Caernarfon
01269 Ammanford
01267 Carmarthen
01248 Bangor
01244 Chester (England)
01239 Cardigan
029 Cardiff*

*It is a common misconception that the code for Cardiff is 02920, whereas in fact it is 029. This is due to Cardiff previously having a 5 digit code (01222) and to the fact that most numbers there begin with 20. This problem is also widespread in cities with 02x codes such as Coventry, London, Portsmouth and Southampton, and in the province of Northern Ireland. Some new Cardiff numbers are now starting with 029 22