Ymchwil, ystadegau a data

Dolenni cyflym

Calendrau datganiadau ystadegol
Data agored
Mewnwelediadau economeg
Mewnwelediadau ymddygiadol

Statistical release calendar 2025

Cyhoeddwyd: 5 Rhagfyr 2024

Diweddarwyd diwethaf: 14 Hydref 2025

Ofcom's statistical release calendar lists the Official Statistics we are due to publish in 2025.

Experiences of using online services

Cyhoeddwyd: 16 Chwefror 2024

Diweddarwyd diwethaf: 14 Hydref 2025

The Online Experiences Tracker is a quantitative tracking survey that examines people's attitudes to, and experiences of using online services.

Statistical release calendar 2025: Pre-release access lists

Cyhoeddwyd: 5 Rhagfyr 2024

Diweddarwyd diwethaf: 10 Hydref 2025

In accordance with the conditions for pre-release access to Official Statistics set out in the DCMS statement of compliance, named officials can receive privileged early access to Official Statistics.

Download numbering data

Cyhoeddwyd: 13 Mawrth 2024

Diweddarwyd diwethaf: 8 Hydref 2025

Data on which UK telephone numbers are available for allocation or are allocated, and lists of codes for use in number porting and other administrative tasks.

Electromagnetic field measurements near mobile base stations

Cyhoeddwyd: 23 Chwefror 2024

Diweddarwyd diwethaf: 3 Hydref 2025

Yearly reports on Ofcom's measurements of electromagnetic fields (EMF) near mobile phone base stations. Here you can find a test report for each location we have visited.

Making sense of media: What works in delivering train the trainer interventions?

Cyhoeddwyd: 15 Medi 2025

Diweddarwyd diwethaf: 1 Hydref 2025

This report examines three media literacy train the trainer pilot programmes for professionals working with children and young people, supported by Ofcom.

User experiences of Generative Artificial Intelligence (GenAI) Search

Cyhoeddwyd: 26 Medi 2025

Ofcom has commissioned a qualitative research study to explore traditional online search experiences and GenAI search experiences.

Making Sense of Media Bulletin: September 2025

Cyhoeddwyd: 29 Ionawr 2024

Diweddarwyd diwethaf: 18 Medi 2025

Ofcom's Making Sense of Media bulletin summarises media literacy activities by a range of organisations in the UK and overseas.

Experiences of engaging with the manosphere

Cyhoeddwyd: 13 Mehefin 2025

Diweddarwyd diwethaf: 16 Medi 2025

This page provides the report and accompanying annex from our qualitative research exploring experiences of engaging with the manosphere, carried out in October and November 2024 by Revealing Reality.

Barriers to Household Connectivity

Cyhoeddwyd: 15 Medi 2025

This page refreshes those take up statistics for 2025 and additionally explores landline usage and TV ownership amongst these groups.

Identifying challenges and solutions for improving inclusivity and usability in the consumption of internet delivered television

Cyhoeddwyd: 15 Medi 2025

The report concludes by prompting a timely response by stakeholders to proactively address the potential for digital exclusion particularly among older users due to the issues identified by considering the solutions proposed.

Adolygiad Blynyddol o'r Farchnad ar gyfer Gwasanaethau y telir amdanynt drwy’r ffôn 2024–2025

Cyhoeddwyd: 4 Medi 2025

Mae’r adolygiad blynyddol hwn yn parhau â'r gyfres o adroddiadau mewnwelediad marchnad flynyddol a gyhoeddwyd yn flaenorol gan y PSA.

Adroddiad: Cwynion am wasanaethau band eang, llinell dir, symudol a theledu-drwy-dalu

Cyhoeddwyd: 25 Ionawr 2024

Diweddarwyd diwethaf: 7 Awst 2025

Fel rheoleiddiwr cyfathrebiadau’r DU, mae Ofcom yn cael cwynion gan gwsmeriaid am eu gwasanaethau llinell dir, band eang sefydlog, ffôn symudol talu’n fisol, a theledu drwy dalu.

Cyfryngau’r Genedl 2025

Cyhoeddwyd: 30 Gorffennaf 2025

Ofcom’s annual Media Nations report is for industry, policymakers, academics and consumers. Our main objectives are to capture evolving consumer behaviours and key trends in the media sector, and to set out how audiences are served in the UK.

Made outside London TV programming

Cyhoeddwyd: 8 Tachwedd 2023

Diweddarwyd diwethaf: 30 Gorffennaf 2025

A list of the programmes produced by the PSBs outside the M25, and criteria against which each programme qualifies as made outside London.

ADR schemes' performance

Cyhoeddwyd: 26 Ionawr 2024

Diweddarwyd diwethaf: 25 Gorffennaf 2025

Every quarter we publish key performance results for the two main ADR schemes, CISAS and Communications Ombudsman.

Telecommunications Market Data Update

Cyhoeddwyd: 22 Hydref 2020

Diweddarwyd diwethaf: 24 Gorffennaf 2025

In the following section we highlight some of the key trends emerging this quarter from the data we collect on the UK telecommunications sector.

Open data

Cyhoeddwyd: 27 Tachwedd 2023

Diweddarwyd diwethaf: 24 Gorffennaf 2025

Ofcom’s open data is a mix of data from or about the companies we regulate in the communications sector, and the citizens and consumers who use them.

Cael gafael ar newyddion yn y DU

Cyhoeddwyd: 20 Gorffennaf 2023

Diweddarwyd diwethaf: 21 Gorffennaf 2025

This report provides key findings from Ofcom’s 2019 research into news consumption across television, radio, print and online.

Materion symudol

Cyhoeddwyd: 20 Gorffennaf 2023

Diweddarwyd diwethaf: 18 Gorffennaf 2025

Er mwyn deall yn well profiadau pobl o ddefnyddio gwasanaethau symudol, mae Ofcom wedi dadansoddi data torfol a gasglwyd rhwng mis Hydref 2022 a mis Mawrth 2023 o ddyfeisiau symudol ar draws y DU.

Mobile Matters Interactive report 2025

Cyhoeddwyd: 17 Gorffennaf 2025

In this report we look at a number of factors that affect network performance in coverage areas including mobile network operator, UK nation and whether the user is an urban or rural area.

The Communications Market 2025

Cyhoeddwyd: 17 Gorffennaf 2025

Communications Market Report 2025: Interactive data

Cyhoeddwyd: 17 Gorffennaf 2025

Data collected from industry by Ofcom, data from Ofcom’s consumer research, and headline figures from selected third parties.

Behavioural Audit of Online Services

Cyhoeddwyd: 26 Mehefin 2025

Diweddarwyd diwethaf: 17 Gorffennaf 2025

In this research project, we partnered with the Behavioural Insights Team (BIT) to conduct a comprehensive behavioural audit of popular social media and video-sharing platforms (VSPs). This audit, carried out between December 2024 and January 2025, systematically mapped online design practices and assessed their impact on user behaviour and outcomes, focusing on four core areas of interest: 1) sign-up process, 2) features and functionalities affecting time spent online, 3) negative sentiment tools, and 4) reporting.

Harnessing the power of serious games to protect people against romance fraud

Cyhoeddwyd: 16 Gorffennaf 2025

Romance fraud is more than just heartbreak – it's a serious crime that can leave victims emotionally devasted and financially exploited. But what if we could play our way to protecting ourselves online?

Profiadau menywod mewn gwleidyddiaeth o gasineb a chamdriniaeth ar-lein

Cyhoeddwyd: 14 Gorffennaf 2025

Mae'r adroddiad hwn yn archwilio profiadau menywod mewn gwleidyddiaeth o gasineb a chamdriniaeth ar-lein yn y DU. Yn seiliedig ar arolwg a chyfweliadau manwl gydag ASau benywaidd presennol a chyn-ASau, mae'n manylu ar eu profiadau personol o dderbyn casineb a cham-drin ar-lein yn eu bywydau bob dydd.

Communications Affordability Tracker

Cyhoeddwyd: 27 Chwefror 2024

Diweddarwyd diwethaf: 14 Gorffennaf 2025

Our latest research into the affordability of home broadband, mobile phone, landline and pay TV services.