UK Area Code information for Langholm

Langholm Area Code Allocation

Ofcom has allocated the 01387 area code to service Langholm and the surrounding area on at least 1 exchange.

Langholm Exchange Information

Langholm WSLAH

The Langholm exchange has 95 commercial and 1,309 domestic properties.
Adsl Max
Fixed Rate
Wbc Adsl 2+
Wbc Adsl 2+ Annex M
Some postcodes covered by this exange include;
DG13 0EA
DG13 0DU
DG13 0DT
DG13 0DX
DG13 0ET
DG13 0DZ
DG13 0ES
DG13 0DG
DG13 0DY
DG13 0EH
DG13 0DR
DG13 0DS
DG13 0DH
DG13 0DL
DG13 0EB
DG13 0DQ
DG13 0EN
DG13 0DJ
DG13 0DN
DG13 0DP
DG13 0JG
DG13 0LX
DG13 0ED
DG13 0EL
DG13 0EJ
DG13 0DW
DG13 0JF
DG13 0JQ
DG13 0JX
DG13 0JE
DG13 0AN
DG13 0JY
DG13 0BZ
DG13 0WX
DG13 0YE
DG13 0WW
DG13 0WU
DG13 0JD
DG13 0ER
DG13 0AA
DG13 0JW
DG13 0JL
DG13 0AB
DG13 0JA
DG13 0JH
DG13 0AD
DG13 0LA
DG13 0JS
DG13 0JJ
DG13 0AE

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.