UK Area Code information for Sudbury

Sudbury Area Code Allocation

Ofcom has allocated the 01787 area code to service Sudbury and the surrounding area on at least 1 exchange.

The Residential Area of Sudbury

More about Sudbury?

Sudbury comprises postcodes covering roughly 6,227km2 containing 807 commercial properties and 13,008 domestic properties.

Sudbury Exchange Information

Sudbury EASUD

The Sudbury exchange has 807 commercial and 13,008 domestic properties.
Some postcodes covered by this exange include;
CO10 2RL
CO10 2RQ
CO10 2XJ
CO10 2RT
CO10 6RQ
CO10 6PP
CO10 6PR
CO10 2RG
CO10 2PR
CO10 6RT
CO10 6XJ
CO10 2PP
CO10 6RU
CO10 2FD
CO10 2RH
CO10 2RJ
CO10 2XF
CO10 2XN
CO10 2RU
CO10 2WR
CO10 6QL
CO10 2PW
CO10 2TX
CO10 2HH
CO10 2QL
CO10 6RG
CO10 6RH
CO10 2WS
CO10 2XA
CO10 6TX
CO10 6TY
CO10 6XB
CO10 2RD
CO10 2TY
CO10 2PT
CO10 2RN
CO10 6PN
CO10 2TZ
CO10 2EB
CO10 2EG
CO10 2ED
CO10 1UT
CO10 2UU
CO10 6SY
CO10 6EH
CO10 6PU
CO10 6SZ
CO10 2TJ
CO10 2RF
CO10 2EE

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.