UK Area Code information for Merthyr Tydfil

Merthyr Tydfil Area Code Allocation

Ofcom has allocated the 01685 area code to service Merthyr Tydfil and the surrounding area on at least 2 exchanges.

The Residential Area of Merthyr Tydfil

More about Merthyr Tydfil?

Merthyr Tydfil comprises postcodes covering roughly 11,599km2 containing 794 commercial properties and 21,294 domestic properties.

Merthyr Tydfil Exchange Information

Ynysowen SWYYN

The Ynysowen exchange has 111 commercial and 3,985 domestic properties.
Adsl Max
Fixed Rate
Fttc Range A (Clean)
Fttp On Demand
Fttc Range B (Impacted)
Wbc Fixed Rate
Wbc Adsl 2+
Wbc Adsl 2+ Annex M
Some postcodes covered by this exange include;
CF48 4HX
CF48 4HY
CF48 4DS
CF48 4HT
CF48 4HZ
CF48 4HW
CF48 4JB
CF48 4JA
CF48 4JD
CF48 4HS
CF48 4JE
CF48 4HU
CF48 4JF
CF48 4JG
CF48 4JQ
CF48 4JH
CF48 4JL
CF48 4JN
CF48 4JW
CF48 4AN
CF48 4JR
CF48 4JS
CF48 4JJ
CF48 4JT
CF48 4JP
CF48 4JU
CF48 4NH
CF48 4NQ
CF48 4JX
CF48 4NG
CF48 4TW
CF48 4DU
CF48 4DX
CF48 4TP
CF48 4DT
CF48 4HH
CF48 4DZ
CF48 4EA
CF48 4JY
CF48 4JZ
CF48 4HJ
CF48 4EF
CF48 4DY
CF48 4LD
CF48 4LA
CF48 4ND
CF48 4NF
CF48 4TR
CF48 4HQ
CF48 4EG

Merthyr Tydfil SWMT_EX

The Merthyr Tydfil exchange has 683 commercial and 17,309 domestic properties.
Adsl Max
Fixed Rate
Wbc Fixed Rate
Wbc Adsl 2+
Wbc Adsl 2+ Annex M
Some postcodes covered by this exange include;
CF47 8JD
CF47 8JE
CF47 8UP
CF47 8UD
CF47 8UJ
CF47 8UX
CF47 8UG
CF47 8UF
CF47 8LA
CF47 8UE
CF47 0EH
CF47 8BF
CF47 8SJ
CF47 8SX
CF47 8TX
CF47 8AA
CF47 8HY
CF47 8LB
CF47 8HU
CF47 8XL
CF47 0BG
CF47 8AH
CF47 8UH
CF47 8DD
CF47 8LR
CF47 8PY
CF47 8TJ
CF47 8BH
CF47 8BU
CF47 8BG
CF47 8AF
CF47 0BH
CF47 8BE
CF47 8RG
CF47 8JA
CF47 8JB
CF47 8UR
CF47 8UB
CF47 8LT
CF47 8JG
CF47 8AP
CF47 0BE
CF47 8UT
CF47 8UY
CF47 8UL
CF47 8LP
CF47 8AT
CF47 8YE
CF47 8LU
CF47 8AU

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.