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ISP & Telecom Directory · United Kingdom

United Kingdom Telecom & ISP Providers Starting With Z

Registered contact details for the 48 communications providers with an Ofcom RID code whose name begins with the letter Z, from the Ofcom register as of 10 September 2026. There is no designated agent for legal process in this data; address requests to the provider's registered office (verify against Companies House) or its published law-enforcement single point of contact. Verify against the live register before serving legal process.

Showing 1–48 of 48 entries

Z1 Telecom Ltd

Ofcom RID holder
Phone
08700508021
Address
Enterprise House, 20 'b' Dale Road, Marple, Stockport, Cheshire, SK6 6HA
Regulator reference
RID CDS (allocated 16/06/2005)

Zamir Telecom Limited

Ofcom RID holder

Also known as: Telecom London Ltd

Phone
02070961171
Address
Unit 3.31, Whitechapel, Technology Centre, 75 Whitechapel Road, London, E1 1DU
Regulator reference
RID CSM (allocated 22/10/2007)

Zen Internet Limited

Ofcom RID holder

Also known as: Zen Internet

Also registered as
Ofcom admin-charge payer 2026/27
Phone
08450589000
Address
Moss Bridge Road, Rochdale, Lancashire, OL16 5EA
Regulator reference
RID DAB (allocated 04/07/2006)

Zed One Technology Limited

Ofcom RID holder

Also known as: Zed One Technology

Phone
02033260200
Address
One Kingsmill Business Park, Kingston Upon Thames, Surrey, KT1 3GZ
Regulator reference
RID FCA (allocated 21/03/2011)

Zeaba Solutions Ltd

Ofcom RID holder
Phone
02079890250
Address
14 Nicholas Lane, London, EC4N 7BN
Regulator reference
RID FLM (allocated 21/05/2013)

Zest4 Group Limited

Ofcom RID holder

Also known as: Zest4

Phone
01612573595
Address
1 Ashley Road, Altrincham, Cheshire, WA14 2DT
Regulator reference
RID FWK (allocated 02/01/2013)

Zest IT Solutions Ltd

Ofcom RID holder

Also known as: Zest Solutions

Phone
08005668888
Address
Zestland 22, Ruxox Wing, Flitwick, MK45 1AH
Regulator reference
RID GZQ (allocated 30/07/2014)

Zenzero Solutions Limited

Ofcom RID holder
Phone
08449670706
Address
Innovation Centre, Warwick Technology Park, Gallows Hill, Warwick, CV34 6UW
Regulator reference
RID GZV (allocated 30/07/2014)

Zusi Limited

Ofcom RID holder
Phone
01782792163
Address
International House, Stubbs Gate, Newcastle, Staffordshire, ST5 1LU
Regulator reference
RID HAY (allocated 07/08/2014)

Z UK IT Limited

Ofcom RID holder

Also known as: Z-UK IT LIMITED

Phone
01246888504
Address
20 Shakespeare Crescent, Dronfield, Derbyshire, S18 1QQ
Regulator reference
RID HLM (allocated 16/10/2014)

Zone Business Solutions Ltd

Ofcom RID holder

Also known as: Zone Business Solutions

Phone
01142299132
Address
36 Church Street, Oughtibridge, Sheffield, S35 0FW
Regulator reference
RID IDU (allocated 05/12/2014)

Zentel Telcom LTD

Ofcom RID holder

Also known as: Zentel

Phone
07971674482
Address
12 Hill Street, Ashby de la Zouch, LE65 2LS
Regulator reference
RID IHC (allocated 22/12/2014)

Zen Systems Ltd

Ofcom RID holder

Also known as: Zen Systems

Phone
01473760021
Address
Paragon House, 35 Lower Brook Street, Ipswich, IP4 1AQ
Regulator reference
RID IJL (allocated 12/01/2015)

Ziron Limited

Ofcom RID holder

Also known as: Ziron (UK) Ltd

Phone
02034040000
Address
Greyfriars Court, Paradise Square, Oxford, OX1 1BE
Regulator reference
RID JWD (allocated 31/07/2015)

Zead

Ofcom RID holder
Phone
01302858365
Address
The Grange, Grange Lane, Balby, Doncaster, DN4 9BB
Regulator reference
RID KUP (allocated 25/04/2016)

Zenos Tech Ltd

Ofcom RID holder

Also known as: Zenos

Phone
08448005350
Address
Collingwood Buildings, 38 Collingwood Street, Newcastle upon Tyne, NE1 1JF
Regulator reference
RID LMU (allocated 20/02/2017)

Zone Telecommunications Ltd

Ofcom RID holder

Also known as: Zone Broadband

Phone
03301359663
Address
Communications House, Lintonville Terrace, Ashington, NE63 9UN
Regulator reference
RID LNM (allocated 01/03/2017)

Zapappi Ltd

Ofcom RID holder

Also known as: Zapappi

Phone
03303203333
Address
39 Nottingham Rd, Nottingham, NG9 8AD
Regulator reference
RID LVU (allocated 12/07/2017)

Zarr Limited

Ofcom RID holder

Also known as: Zarr Ltd

Phone
01788820900
Address
13a Davy Court, Central Park, Rugby, CV23 0UZ
Regulator reference
RID LZI (allocated 04/09/2017)

ZED SOLUTIONS FOR BUSINESS LIMITED

Ofcom RID holder

Also known as: Zed Telecom

Phone
07914070705
Address
50 wakering road, Barking, Essex, IG11 8GN
Regulator reference
RID NDJ (allocated 12/02/2019)

ZEPLER SYSTEMS LIMITED

Ofcom RID holder
Phone
08445675640
Address
Zepler Systems Limited, 3rd Floor, 82 King Street, Manchester, M2 4WQ
Regulator reference
RID NGL (allocated 04/04/2019)

ZETTA CONNECT LIMITED

Ofcom RID holder

Also known as: Zetta Connect

Phone
02039476590
Address
3 Fabian Road, London, England, London, SW6 7TY
Regulator reference
RID NTL (allocated 10/12/2019)

ZAGONIA LIMITED

Ofcom RID holder

Also known as: Vybecom

Phone
03335779558
Address
8th Floor, 20, Farringdon Street, London, EC4A 4AB
Regulator reference
RID PAW (allocated 26/05/2020)

ZETEL LIMITED

Ofcom RID holder

Also known as: Zetel

Phone
07510730944
Address
Unit 6/A, Monteagle Court,Wakering Road, Barking, IG11 8PL
Regulator reference
RID PNT (allocated 25/02/2021)

ZIEGAL LTD

Ofcom RID holder
Phone
08002118289
Address
International House, Mosley Street, Manchester, M2 3HZ
Regulator reference
RID PXJ (allocated 23/08/2021)

ZEST CTO GROUP LTD

Ofcom RID holder

Also known as: Zest

Phone
01158573790
Address
Falcon Lodge, Upper Hexgreave, Nottingham, Ng22 8LS
Regulator reference
RID PYI (allocated 20/09/2021)

ZETTATECH LTD

Ofcom RID holder

Also known as: ZettaTech

Phone
07753817705
Address
2 Kipling Drive, Larkfield, ME20 6UJ
Regulator reference
RID PZT (allocated 22/10/2021)

ZIM CONNECTIONS LTD

Ofcom RID holder

Also known as: ZIM Connections

Phone
07429789915
Address
40e Queens Gardens, London, W2 3AA
Regulator reference
RID QAI (allocated 19/11/2021)

ZAMARSOFT LIMITED

Ofcom RID holder
Phone
07375465238
Address
5 South Charlotte Street, Edinburgh, EH2 4AN
Regulator reference
RID QDG (allocated 23/02/2022)

ZAPPIE NETWORK SERVICES LTD

Ofcom RID holder
Phone
03331888200
Address
25 Deridene Court, Southampton, SO40 8WS
Regulator reference
RID QPN (allocated 22/11/2022)

Zzoomm plc

Ofcom RID holder

Also known as: Zzoomm

Also registered as
Code powers operator; Ofcom admin-charge payer 2026/27
Phone
03333119933
Address
Aldgate Tower, 2 Leman Street, London, E1 8QN
Regulator reference
RID QVR (allocated 24/03/2023)

ZOOC LTD

Ofcom RID holder
Phone
01626785910
Address
22 Kingskerswell Road, Newton Abbot, TQ12 1DG
Regulator reference
RID QYQ (allocated 02/06/2023)

ZENO & CO LIMITED

Ofcom RID holder

Also known as: ZENO

Phone
01224392424
Address
Goose Croft House, 5 Forest Road, Kintore, AB51 0XG
Regulator reference
RID RAK (allocated 20/07/2023)

ZIAAS LTD

Ofcom RID holder

Also known as: ZiAAS

Phone
02030263720
Address
1st Floor, 21 Worship Street, London, EC2A 2DW
Regulator reference
RID RAW (allocated 31/07/2023)

Zycomm Electronics Limited

Ofcom RID holder

Also known as: ZYCOMM

Phone
01773570123
Address
51 Nottingham Road, Ripley, DE5 3AS
Regulator reference
RID RBH (allocated 10/08/2023)

ZENTECH IT LTD

Ofcom RID holder

Also known as: Zentech IT

Phone
01252412377
Address
Quatro House, Lyon Way, Frimley Road, Camberley, GU16 7ER
Regulator reference
RID RCZ (allocated 19/09/2023)

ZINQ IT LIMITED

Ofcom RID holder

Also known as: Zinq IT

Phone
03456590109
Address
Stage 2 Business Centre, Dundas Lane, Portsmouth, PO3 5ND
Regulator reference
RID RER (allocated 03/11/2023)

ZENITH SYSTEMS LTD

Ofcom RID holder

Also known as: Zenith Systems

Phone
01912494416
Address
7 West Wynd, Killingworth, NE12 6FP
Regulator reference
RID RPE (allocated 20/06/2024)

ZOIKO TELECOM LTD

Ofcom RID holder
Phone
02071646399
Address
35 Berkeley Square, Mayfair, London, W1J 5BF
Regulator reference
RID RRD (allocated 29/07/2024)

ZEUS CONNEX LIMITED

Ofcom RID holder
Phone
01789335801
Address
Unit 4, Mansley Business Centre, Timothy's Bridge Road, Stratford upon Avon, CV37 9NQ
Regulator reference
RID RRJ (allocated 02/08/2024)

ZYOOM LTD

Ofcom RID holder

Also known as: Zyoom

Phone
07745751202
Address
8 Stocks Lane, Corby, NN17 1AU
Regulator reference
RID SEZ (allocated 18/07/2025)

ZANANET LIMITED

Ofcom RID holder

Also known as: ZanaNET

Phone
01329800132
Address
Segensworth, Fareham, PO15 5TX
Regulator reference
RID SFQ (allocated 31/07/2025)

ZANSYS LTD

Ofcom RID holder
Phone
01516531920
Address
2 - 4 Euston Grove, Prenton, Birkenhead, CH43 4TY
Regulator reference
RID SFU (allocated 31/07/2025)

ZENTIVE CABLE LIMITED

Ofcom RID holder

Also known as: Zentive

Phone
01489853550
Address
3700 Parkway, Solent Business Park, Fareham, PO15 7AW
Regulator reference
RID SMX (allocated 16/03/2026)

ZURI IT LTD

Ofcom RID holder

Also known as: ZURI IT

Phone
02045702770
Address
167-169 Great Portland STREET, 5th Floor, London, W1W 5PF
Regulator reference
RID SRM (allocated 26/06/2026)

ZORVATEL COMMUNICATIONS LIMITED

Ofcom RID holder

Also known as: Zoravtel Communications Limited

Phone
02080586909
Address
14 Harrow Place, London, E1 7DB
Regulator reference
RID SSX (allocated 10/08/2026)

Independent reference compiled from Ofcom numbering data: Reseller Identification (RID) code allocations (RID.csv), cross-referenced with Ofcom's Register of persons with powers under the Electronic Communications Code and the 2026/27 administrative-charges list for study and investigative use. Ministry of Cyber Affairs is not a government body and does not represent any listed provider. See the United Kingdom directory overview and the directory hub for other countries.