UK Area Code information for Porthmadog

Porthmadog Area Code Allocation

Ofcom has allocated the 01766 area code to service Porthmadog and the surrounding area on at least 1 exchange.

The Residential Area of Porthmadog

More about Porthmadog?

Porthmadog comprises postcodes covering roughly 1,280km2 containing 316 commercial properties and 2,450 domestic properties.

Porthmadog Exchange Information

Porthmadog WNPOR

The Porthmadog exchange has 316 commercial and 2,450 domestic properties.
Adsl Max
Fixed Rate
Fttc Range A (Clean)
Fttc Range B (Impacted)
Wbc Adsl 2+
Wbc Adsl 2+ Annex M
Some postcodes covered by this exange include;
LL49 9HE
LL49 9EH
LL49 9EJ
LL49 9EL
LL49 9HN
LL49 9LF
LL49 9HH
LL49 9HL
LL49 9HP
LL49 9DY
LL49 9HW
LL49 9EN
LL49 9EG
LL49 9HD
LL49 9EQ
LL49 9EF
LL49 9EA
LL49 9EW
LL49 9NU
LL49 9HB
LL49 9ED
LL49 9EE
LL49 9HT
LL49 9HX
LL49 9NS
LL49 9NP
LL49 9LA
LL49 9LS
LL49 9PH
LL49 9HS
LL49 9NT
LL49 9EB
LL49 9DN
LL49 9HU
LL49 9PN
LL49 9DU
LL49 9HA
LL49 9DS
LL49 9PE
LL49 9AX
LL49 9DJ
LL49 9EY
LL49 9DW
LL49 9NW
LL49 9DH
LL49 9DP
LL49 9DL
LL49 9HY
LL49 9NY
LL49 9DR

Broadband Connectivity Type Definitions

Different telephone exchanges have different broadband connectivity depending on their geographic location, the consumers they serve (demand and composition of those consumers) and the competative landscape in that locale. As a result there is a mix of services and related performance which BT classify as follows;

Fixed Rate

There for three fixed rate lines; 512Kbps, 1Mbps and 2Mbps. As with IPStream 500, 1000 and 2000, these have an upstream capped at 288Kbps. Note that all of the other WBC products apart from these are strictly rate adaptive (like ADSL Max).

WBC Fixed Rate

Wholesale Broadband Connect (WBC) offers high-speed, high-performance broadband services.


BT's original ADSL2+ wholesale product with an option of an upstream cap at 448Kbps or no cap at all. ADSL2+ can achieve up to 1Mbps upstream.


ADSL2+ (also known as 21CN (21st Century Network) and WBC (Wholesale Broadband Connect) is a high speed broadband service which offers download speeds of up to 24Mbs and upload speeds of up to 1Mbs.

WBC ADSL 2+ Annex M

ADSL2+ Annex M offers up to 2.5Mbps upstream in the UK. This product is used by many businesses who could previously only find this level of upstream bandwidth with SDSL. Note that there is no option for a capped upstream with this product.

FTTC Range A (Clean)

FTTC Range A is a range where the circuits are deemed to be free of any copper line faults, and any local wiring issues (in a customer's premises). This range is often very wide for both upload and download, and does beg the question of why a copper line fault may exist without being fixed.

FTTC Range B (Impacted)

FTTC Range B is a range where circuits may have copper faults and/or internal wiring issues at a customer's site. The term impacted could be useful, as sometimes crosstalk is mentioned as something that impacts on line speeds, but there is no official word from BT on whether either Range A or Range B take into account the effects of crosstalk.

FTTP On Demand

Fiber to the home (FTTH), also called "fiber to the premises" (FTTP), is the installation and use of optical fiber from a central point directly to individual buildings such as residences, apartment buildings and businesses to provide unprecedented high-speed Internet access. FTTH dramatically increases the connection speeds available to computer users compared with technologies now used in most places.