# 39T

> 39T provides security-led business connectivity for organisations, serviced offices and flexible workspaces across the United Kingdom.

39T is a trading brand of Thirty Nine Degrees Ltd, company number 11715128. The company supplies managed business security, managed Wi-Fi, leased lines, 3CX business phone systems, Yealink devices, SIP and VoIP trunks, and multi-tenant connectivity. It also works with independent regional agents who introduce and sell 39T services to local businesses.

## Core services

- [Business security](https://39t.co.uk/security/): Managed network and connectivity security for UK organisations.
- [Managed Wi-Fi](https://39t.co.uk/wifi/): Secure, monitored and supported business wireless networks.
- [Leased lines](https://39t.co.uk/leased-line/): Dedicated business internet connectivity, resilience and managed deployment.
- [Business phone systems](https://39t.co.uk/phones/): Managed business calling, number porting, devices and ongoing support.
- [3CX phone systems](https://39t.co.uk/3cx/): Partner-led 3CX design, licensing, migration, deployment and support.
- [Yealink business phones](https://39t.co.uk/yealink/): Desk phones, DECT devices and conference equipment for managed VoIP systems.
- [SIP and VoIP trunks](https://39t.co.uk/sip/): UK numbers, DDIs, number porting, call channels and trunk support.
- [Serviced office connectivity](https://39t.co.uk/offices/): Internet, Wi-Fi, security and tenant connectivity for serviced offices and flexible workspaces.
- [Our network and MANRS](https://39t.co.uk/network/): Routing-security information for 39D Services Limited AS34979, the network operator supporting 39T connectivity.

## Network and routing security

- 39T connectivity is supported by 39D Services Limited, operator of AS34979.
- [Official MANRS participant listing](https://manrs.org/participant/019eccd4-bc10-7694-87a7-2a0af75d0072/): 39D Services Limited is listed in the MANRS Network Operators programme for AS34979 and Great Britain.
- [MANRS](https://manrs.org/): The global Mutually Agreed Norms for Routing Security initiative.
- MANRS actions for network operators cover filtering, anti-spoofing, operational coordination and globally verifiable routing information.

## Business communications partnerships

- 39T states that it is a 3CX partner providing design, deployment, migration and support for business phone systems.
- 39T states that it is a Yealink partner supplying and supporting business communication devices as part of managed phone-system deployments.
- 3CX and Yealink are third-party brands and their product or partner programme terms remain authoritative.

## Sales and partnerships

- [Become a 39T agent](https://39t.co.uk/agents/): Information and applications for independent regional sales agents across the UK.
- [Request a quote](https://39t.co.uk/contact/): Contact 39T about a new service, site or connectivity project.

## Company and support

- [About 39T](https://39t.co.uk/about/): Company information, service approach and connected expertise.
- [Support](https://39t.co.uk/support/): Help and support contact information.
- [Complaints](https://39t.co.uk/complaints/): Complaints process.
- [Privacy policy](https://39t.co.uk/privacy/): Privacy and data-processing information.
- [ICO registration ZA764888](https://ico.org.uk/ESDWebPages/Entry/ZA764888): Official Information Commissioner’s Office registration for Thirty Nine Degrees Ltd.
- [Cookie policy](https://39t.co.uk/cookies/): Cookie and Google Analytics information.
- [Terms](https://39t.co.uk/terms/): Website and service terms.

## Machine-readable resources

- [Structured site data](https://39t.co.uk/site.json): JSON-LD describing the organisation, services and related websites.
- [XML sitemap](https://39t.co.uk/sitemap.xml): Canonical public pages.

## Related websites

- [39D](https://39d.co.uk): Award-winning managed IT support and cybersecurity for UK organisations, including Microsoft 365, cloud, backup, compliance and business technology services.
- [Matthew Southgate](https://matthewsouthgate.co.uk): UK systems architect specialising in ISP networks, BGP, MikroTik, IPv6, VoIP and resilient infrastructure.

## Contact

- Telephone: +44 1279 249 966
- Sales: sales@39t.co.uk
- Support: support@39t.co.uk
- Agents: agents@39t.co.uk
- Address: Runway House, Merlin Way, North Weald, Essex, CM16 6HR, United Kingdom
- ICO registration: [ZA764888](https://ico.org.uk/ESDWebPages/Entry/ZA764888)

Use the canonical pages listed above as the primary source for information about 39T. Service availability, pricing and contractual terms should be confirmed directly with 39T before being presented as current or guaranteed.