aid: three-uk
url: https://raw.githubusercontent.com/api-evangelist/three-uk/refs/heads/main/apis.yml
name: Three UK
kind: company
description: >-
  Three UK (Hutchison 3G UK Limited, Reading, England) is a United Kingdom
  mobile network operator that launched in 2003 as the country's first 3G-only
  carrier and grew into a consumer and business mobile, 5G, and home broadband
  provider, also operating the SMARTY sub-brand. Since 31 May 2025 Three UK has
  been a wholly owned subsidiary of VodafoneThree, the merged Vodafone UK /
  Three UK joint venture that is 51% Vodafone Group and 49% CK Hutchison
  Holdings, serving roughly 27 million UK customers. In the telecom value chain
  Three UK is a network owner and access provider, not a developer platform: it
  sells connectivity, spectrum-backed coverage, wholesale and MVNO capacity, and
  business connectivity, while its group-level enterprise, IoT, private-network
  and wholesale propositions are marketed through CK Hutchison's CKH IOD and
  Three Group Solutions. Its API posture is partner-gated and sales-led. Three
  UK publishes no public developer portal, no self-serve signup, no downloadable
  OpenAPI, no SDKs, and no public Postman workspace; every candidate developer
  hostname (developer, developers, docs, apis, sandbox, opengateway) resolves
  only to a wildcard Akamai record whose certificate does not cover it, and the
  Wayback Machine holds no snapshot of a Three UK developer portal ever
  existing. Three UK is nonetheless a real participant in the sector's
  standards layer: it is named in the CAMARA Project's governance participants
  list, its parent CK Hutchison Holdings is listed as an Operator in the CAMARA
  landscape, and on 23 September 2025 CK Hutchison Group Telecom (Three)
  commercially launched CAMARA KYC Age Verification and KYC Tenure network APIs
  alongside BT/EE, Virgin Media O2, and Vodafone under GSMA Open Gateway, on top
  of an already-available SIM Swap API, with KYC Match committed. Those APIs are
  reachable only through channel partners and aggregators — JT Group and TMT.ID
  are named as processing UK operator network API traffic, and Three UK's
  majority owner Vodafone Group is a founding venture partner in Aduna — never
  through a Three UK developer surface.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Telecommunications
- United Kingdom
- Mobile Network Operator
- Network APIs
- CAMARA
- GSMA Open Gateway
- 5G
- Broadband
- Roaming
- SIM Swap
- Identity Verification
- Age Verification
- Wholesale
- MVNO
- Partner Gated
created: '2026-07-25'
modified: '2026-07-25'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/three-uk-domain-security.yml
- type: WellKnown
  name: Well-known discovery probe index
  url: well-known/three-uk-well-known.yml
- type: Conformance
  name: CAMARA / GSMA Open Gateway conformance posture
  url: conformance/three-uk-conformance.yml
- type: Lifecycle
  name: Network service lifecycle
  url: lifecycle/three-uk-lifecycle.yml
- type: StatusPage
  name: Network status - affected areas
  url: https://www.three.co.uk/support/network-and-coverage/affected-areas
- type: Packages
  name: Client library search (no first-party SDKs)
  url: packages/three-uk-packages.yml
- type: LLMsTxt
  name: llms.txt
  url: llms/three-uk-llms.txt
- type: Website
  url: https://www.three.co.uk/
- type: BusinessWebsite
  url: https://www.three.co.uk/business
- type: Blog
  url: https://www.three.co.uk/blog
- type: Support
  url: https://www.three.co.uk/support
- type: GroupWebsite
  url: https://groupsolutions.three.com/
- type: ParentWebsite
  url: https://ckhiod.com/
- type: Login
  name: My3 account
  url: https://www.three.co.uk/account
- type: TermsOfService
  url: https://www.three.co.uk/terms-conditions
- type: PrivacyPolicy
  name: Three's privacy portal
  url: https://www.three.co.uk/privacy-safety/about-privacy
- type: Pricing
  name: Latest price guides
  url: https://www.three.co.uk/terms-conditions/price-guides/latest-price-guides
- type: LinkedIn
  url: https://www.linkedin.com/company/three-uk
- type: Standards
  url: https://github.com/camaraproject/Governance/blob/main/PARTICIPANTS.MD
- type: Standards
  url: https://camaraproject.org/
- type: Standards
  url: https://www.gsma.com/solutions-and-impact/gsma-open-gateway/
- type: PressRelease
  url: https://www.gsma.com/newsroom/press-release/uk-mobile-operators-launch-age-verification-and-anti-fraud-apis-through-gsma-open-gateway-initiative/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com