The ten BT Telephone Exchanges (and five former) in the Colwyn Bay (01492) telephone area
Aberconwy ATE

Colwyn Bay ATE

Conway/Conwy former ATE

The former Conwy Telephone Exchange is located in Berry Street, Conway LL32 8DG and served Conway and the surrounding area.
The building is now home to the Clwyd & Gwynedd Army Cadets.
When this exchange closed subscribers were transferred to the Aberconwy exchange.
Dolgarrog ATE

Glan Conwy former ATE
The former Glan Conway exchange is situated in Llewelyn Avenue, Llansanffraid Glen Conwy LL28 5LU.
It was equipped with a UAX13 when it opened on 15 February 1949.
When it closed subscribers were transferred to the Aberconwy exchange.
Its dialling code was 049 268.
Photo courtesy of Google Maps.
Llandudno ATE

Llandudno former ATE

The first automatic telephone exchange in Llandudno was installed on an upper floor of the then post office in Vaughan Street, Llandudno LL30 1AB.
Equipped by Siemens Brothers, it came into service in a linked numbering scheme with Colwyn Bay in July 1927.
ID: WNLDD. Photo (2017) courtesy of Gerald England.
Old Colwyn ATE

ID: WNOC. Photo courtesy of Simon Cowper-Smith.
Penmaenmawr ATE

Penmaenmawr former ATE
Penrhynside former ATE

The former Penrhynside ATE came into service on 14 July 1928 as a satellite exchange of Colwyn Bay and part of its linked numbering scheme.
It is believed to have closed in 1965, its lines becoming Llandudno 49*** numbers.
We don’t know its location.
Photo (1929) courtesy of BT Archives.
Rhos On Sea ATE

ID: WNROS. Photo courtesy of Ian Jolly.
Tynygroes ATE

Other former Colwyn Bay Exchanges
- Deganwy former ExchangeThe former Deganwy exchange stood in All Saints Avenue, Deganwy, Conwy LL31 9DZ. A non-director satellite, and part of the linked numbering scheme, of Colwyn Bay exchange, it opened in February 1940 to replace a manual exchange. Its lines were taken by Aberconwy exchange in November 1986, it was sold by BT in 1991 and has since been demolished.
- Llanddulas Former ExchangeLlanddulas exchange was a UAX13. It had the dialling code 049 266. Its location on the A55 has been lost under the North Wales Expressway.
- Llandudno Junction Former ExchangeThe former Llandudno Junction ATE was a satellite exchange of Colwyn Bay and part of its linked numbering scheme. It opened on 14 July 1928. Its name was dropped from directories in 1965 and lines became Deganwy numbers. It closed in November 1986, its lines transferring to Aberconwy. Its location is unknown.
- Maelgwyn former relief ExchangeThe former Maelgwyn exchange was a relief unit to Llandudno Junction exchange between 1983 and 1988



