UK Area Code information for 01223

Cambridge Area Code Allocation

Ofcom has allocated the 01223 area code to service Cambridge and the surrounding area on at least 8 exchanges.

The Residential Area of Cambridge

More about Cambridge?

Cambridge comprises postcodes covering roughly 42,149km2 containing 3,428 commercial properties and 59,469 domestic properties.

Cambridge Exchange Information

Cambridge EACAM

The Cambridge exchange has 2,022 commercial and 24,161 domestic properties.

Histon EAHIS

The Histon exchange has 118 commercial and 3,817 domestic properties.

Teversham EATEV

The Teversham exchange has 49 commercial and 2,242 domestic properties.
Adsl Max
Fixed Rate

Fulbourn EAFUL

The Fulbourn exchange has 93 commercial and 1,776 domestic properties.

Science Park EASCI

The Science Park exchange has 315 commercial and 4,082 domestic properties.
Adsl Max
Fttp On Demand
Fixed Rate

Girton EAGIR

The Girton exchange has 52 commercial and 1,736 domestic properties.
Adsl Max
Fixed Rate
Fttc Range A (Clean)
Fttc Range B (Impacted)

Cherry Hinton EACRH

The Cherry Hinton exchange has 612 commercial and 16,977 domestic properties.
Adsl Max
Fixed Rate
Wbc Fixed Rate
Wbc Adsl 2+
Wbc Adsl 2+ Annex M

Trumpington EATRU

The Trumpington exchange has 167 commercial and 4,678 domestic properties.

Companies Operating 01223 Numbers

The following list of companies have been licensed by Ofcom to operate geogrpahic numbers in Cambridge. It is worth noting that most, although not all, providers other than BT (or possibly Virgin, Kingston Telecom, et al) are are likely not operating fixed line services to this locale and, as such, should not be seen as providing a legitimate fixed line geogrpahic service to Cambridge;

3C Ltd
Affiniti Integrated Solutions Ltd
Andrews & Arnold (Numbers) Ltd
Aql Wholesale Ltd
Aql Wholesale Ltd
BT
Barritec Ltd
Barritel Ltd
Callagenix Ltd
Colloquium Ltd
Colt Technology Services
Connect Telecom Uk Ltd
Content Guru Ltd
Daisy Communications Ltd
Digital Mail Ltd
Digital Select Ltd
E164 Ltd
Easynet Enterprise Services Ltd
Edge Telecom Ltd
Flextel Ltd
Gamma Telecom Holdings Ltd
Hello Telecom (Uk) Plc
Hemshore Ltd
I-Net Communications Group Plc
I.T Communications Ltd
Icc Networks Ltd
Ihub 2 Ltd
Inclarity Communications Ltd
Inet Telecoms Ltd (Voipfone)
Invade International Ltd
Invoco Ltd
Invomo Ltd
Iovox Ltd
Kalnet4U Ltd
Known Communications Ltd
Level 3 Communications Uk Ltd
Linear Telecoms Ltd
Liquid 11 Ltd
Localphone Ltd
Magnetic North Software Ltd
Magrathea Telecommunications Ltd
Media Hawk Ltd
Minotaur Telecom Ltd
Nationwide Telephone Assistance Ltd
Net Solutions Europe Ltd
Net-Work Internet Ltd
Nexbridge Communications Ltd
Nodemax Ltd
Numbergroup Network Ltd
Numbers Plus Ltd
Orange Business Holdings Uk Ltd
Radius Communications Ltd
Reality Network Services Ltd
Redcentric Solutions Ltd
Resilient Plc
Served Up Ltd.
Simwood Esms Ltd
Six Degrees Unified Comms Ltd
Sky Uk Ltd
Spitfire Network Services Ltd
Synety Ltd
Syntec Ltd
Talktalk Communications Ltd
Telecom2 Ltd
Telecoms Cloud Networks Ltd
Teledesign Ltd
Telng Ltd
Telxl Ltd
Tgl Services (Uk) Ltd
Timico Ltd
Tipicall Ltd
Ttnc Ltd
Verizon Uk Ltd
Virgin Media Ltd
Vodafone Ltd
Voiceflex Ltd
Voicehost Ltd
Voip-Un Ltd
Vonage Ltd
Voxbone Sa
Wavecrest (Uk) Ltd
We Love Communications Ltd
Wightfibre Ltd
Windsor Telecom Plc
Yayyay Ltd
Ziron (Uk) Ltd


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.

ADSL Max

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.

WBC ADSL 2+

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.