UK Area Code information for Chesterfield

Chesterfield Area Code Allocation

Ofcom has allocated the 01246 area code to service Chesterfield and the surrounding area on at least 4 exchanges.

The Residential Area of Chesterfield

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Chesterfield comprises postcodes covering roughly 34,669km2 containing 2,837 commercial properties and 52,405 domestic properties.

Chesterfield Exchange Information

Holymoorside SLHLY

The Holymoorside exchange has 123 commercial and 2,819 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;
S40 3JY
S40 3JW
S40 3NR
S40 3JZ
S40 3NS
S40 3LQ
S40 3PY
S40 3LB
S40 3GY
S40 3NU
S40 3LA
S40 3GW
S40 3NT
S40 3LG
S40 3LF
S40 3LD
S40 3JX
S40 3YX
S40 3YZ
S40 3YN
S40 3SR
S40 3NX
S40 3JU
S40 3FD
S40 3FL
S40 3PZ
S40 3JT
S40 3SG
S40 3PA
S40 3RA
S40 3JS
S40 3NP
S40 3HN
S40 3NW
S40 3AX
S40 3FG
S40 3LE
S40 3FB
S40 3RS
S40 3PB
S40 3AY
S40 3QA
S40 3PD
S40 3AU
S40 3RU
S40 3PP
S40 3PE
S40 3QD
S40 3PF
S40 3AS

Staveley SLSY

The Staveley exchange has 269 commercial and 7,267 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;
S43 3PA
S43 3NU
S43 3QA
S43 3PB
S43 3JF
S43 3PG
S43 3UY
S43 3UP
S43 3UJ
S43 3UX
S43 3JP
S43 3UZ
S43 3XR
S43 3PD
S43 3JQ
S43 3PF
S43 3PE
S43 3XA
S43 3TL
S43 3UN
S43 3UT
S43 3UR
S43 3UU
S43 3UL
S43 3TS
S43 3PH
S43 3JL
S43 3JN
S43 3PQ
S43 3PJ
S43 3TN
S43 3XS
S43 3JW
S43 3TR
S43 3PT
S43 3JH
S43 3JJ
S43 3PR
S43 3JR
S43 3PS
S43 3PP
S43 3XB
S43 3TP
S43 3PW
S43 3YW
S43 3FH
S43 3ZX
S43 3ZZ
S43 3ZY
S43 3ZJ

Old Whittington SLOLD

The Old Whittington exchange has 662 commercial and 6,233 domestic properties.
Some postcodes covered by this exange include;
S41 9HD
S41 9DE
S41 9JL
S41 9HJ
S41 9HA
S41 9DG
S41 9DF
S41 9YA
S41 9YB
S41 9YF
S41 9YZ
S41 9GH
S41 9GX
S41 9DD
S41 9JH
S41 9EZ
S41 9JJ
S41 9HL
S41 9DQ
S41 9HE
S41 9DB
S41 9NG
S41 9HN
S41 9ND
S41 9JN
S41 9DH
S41 9JS
S41 9NE
S41 9JQ
S41 9ER
S41 9DA
S41 9JG
S41 9JT
S41 9HT
S41 9DJ
S41 9NN
S41 9NF
S41 9EE
S41 9NW
S41 9HB
S41 9AG
S41 9ES
S41 9JY
S41 9HG
S41 9DN
S41 9DL
S41 9EU
S41 9NP
S41 9HP
S41 9HW

Chesterfield SLCD

The Chesterfield exchange has 1,783 commercial and 36,086 domestic properties.
Adsl Max
Fixed Rate
Wbc Fixed Rate
Wbc Adsl 2+
Wbc Adsl 2+ Annex M
Some postcodes covered by this exange include;
S40 1UH
S40 1UL
S40 1TX
S40 1UJ
S40 1UX
S40 1UN
S40 1RF
S40 1UF
S40 1UD
S40 1UR
S40 1UA
S40 1JU
S40 1UB
S40 1UW
S40 1UP
S40 1RW
S40 1JP
S40 1JS
S40 1LR
S40 1QF
S40 1TE
S40 1LT
S40 1JW
S40 1TT
S40 1TP
S40 1TQ
S40 1RL
S41 7PD
S40 1RE
S40 1PP
S40 1PW
S40 1QA
S40 1JR
S40 1PS
S40 1RP
S40 1JT
S40 1JX
S40 1JZ
S40 1RN
S41 7SF
S40 1TN
S40 1JY
S40 1UT
S40 1RQ
S40 1TW
S40 4SA
S40 4SB
S40 1TL
S40 1UZ
S40 2DL

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.