UK BBC and commercial radio stations containing I in the name:
3FM (Isle of Man) [3FM]
45 Radio [45R]
60 North Radio [60N]
Absolute Classic Rock [ACR]
Absolute Radio [ABS]
Absolute Radio 70s [A70]
Absolute Radio 90s [A90]
Absolute Radio 00s [A00]
Absolute Radio 10s [A10]
Absolute Radio 20s (CEASED) [A20]
Absolute Radio Country [ACN]
Actual Radio [ATL]
Adventist Radio London [ADV]
All 80s Radio [AL8]
All Gold Radio (Northern Ireland) (CEASED) [AGN]
All Hit Radio [ALH]
Allstar Youth Radio (CEASED) [ASY]
AltZone Radio [ALZ]
Ambition Radio [ABT]
Angel Radio (Chichester, Portsmouth & Havant) [AGH]
Asian Air Radio [ASA]
Aspen Waite Radio [APW]
Athavan Radio [ATV]
Atlantic 252 [ATC]
Atmosphere.Radio [ATM]
Atomix Radio [ATX]
Backstage Radio [BSG]
Bailiwick Radio (formerly Bailiwick Radio Hits) [BWK]
Barts Radio [BRT]
Bayside [BYS]
BBC Asian Network [BAN]
BBC Radio 1 [BR1]
BBC Radio 1 Anthems [B1A]
BBC Radio 1 Dance [B1D]
BBC Radio 1Xtra [B1X]
BBC Radio 2 [BR2]
BBC Radio 3 [BR3]
BBC Radio 3 Unwind [B3U]
BBC Radio 4 [BR4]
BBC Radio 4 Extra [B4X]
BBC Radio 5 Live [B5L]
BBC Radio 5 Sports Extra [B5S]
BBC Radio 6 Music [B6M]
BBC Radio Berkshire [BBK]
BBC Radio Bristol [BBR]
BBC Radio Cambridgeshire [BCG]
BBC Radio Cornwall [BCN]
BBC Radio Cumbria [BCM]
BBC Radio Cymru [BCY]
BBC Radio Cymru 2 [BC2]
BBC Radio Derby [BDB]
BBC Radio Devon [BDV]
BBC Radio Foyle [BFY]
BBC Radio Gloucestershire [BGT]
BBC Radio Guernsey [BGS]
BBC Radio Humberside [BHM]
BBC Radio Jersey [BJS]
BBC Radio Kent [BKT]
BBC Radio Lancashire [BLA]
BBC Radio Leeds [BLD]
BBC Radio Leicester [BLS]
BBC Radio Lincolnshire [BLC]
BBC Radio London [BLN]
BBC Radio Manchester [BMC]
BBC Radio Merseyside [BMS]
BBC Radio nan Gàidheal [BNG]
BBC Radio Newcastle [BNC]
BBC Radio Norfolk [BNF]
BBC Radio Northampton [BNH]
BBC Radio Nottingham [BNT]
BBC Radio Orkney [BOK]
BBC Radio Oxford [BOX]
BBC Radio Scotland (Network FM) [BSL]
BBC Radio Scotland (MW) [BSA]
BBC Radio Sheffield [BSE]
BBC Radio Shetland [BSN]
BBC Radio Shropshire [BSH]
BBC Radio Solent (South Hampshire, Isle of Wight & East Dorset) [BSC]
BBC Radio Solent (West Dorset) [BSD]
BBC Radio Somerset [BSS]
BBC Radio Stoke [BST]
BBC Radio Suffolk [BSF]
BBC Radio Surrey [BSY]
BBC Radio Sussex [BSX]
BBC Radio Tees [BTS]
BBC Radio Ulster [BUL]
BBC Radio Wales (Network FM) [BWL]
BBC Radio Wales (MW) [BWA]
BBC Radio Wiltshire [BWT]
BBC Radio WM [BWM]
BBC Radio York [BYK]
BBC Three Counties Radio [B3C]
BBC World Service [BWS]
BCR, Blackpool Community Radio [BPL]
Best City Radio [BTC]
Beware! The Radio [BWR]
BFBS Best of British [BFH]
BFBS Gurkha Radio [BFG]
BFBS Rewind [BFR]
Bloomberg Radio [BLM]
Blue Sky Radio [BSK]
Boom Light [BML]
Boom Radio [BOM]
Boomerang Radio [BMG]
BRIDGEfm (Dundee) [BRD]
Bridge FM Radio (Bridgend) [BDG]
BritAsia Radio [BTA]
Brooklands Radio [BRK]
Bucks Radio [BUX]
Burnley College Radio [BUC]
Canny Radio [CNY]
Capital (Birmingham) [CBH]
Capital (Brighton) [CBN]
Capital (East Midlands) (Derbyshire) [CDB]
Capital (East Midlands) (Leicestershire) [CLS]
Capital (East Midlands) (Nottinghamshire) [CNT]
Capital (Lancashire) (Burnley & Pendle) [CBP]
Capital (Lancashire) (Preston & Blackburn) [CPB]
Capital (Liverpool) [CLV]
Capital (London) [CLN]
Capital (Manchester) [CMC]
Capital (Mid Counties) (Coventry) [CCV]
Capital (Mid Counties) (North Oxfordshire) [CBB]
Capital (Mid Counties) (Rugby) [CRG]
Capital (Mid Counties) (South East Staffordshire) [CBL]
Capital (Mid Counties) (Stratford-upon-Avon) [CSF]
Capital (Mid Counties) (Warwick) [CWK]
Capital (North East) (Teesside) [CTS]
Capital (North East) (Tyne & Wear) [CTW]
Capital (North Wales) (Anglesey & Gwynedd) [CAG]
Capital (North Wales) (North Wales Coast) [CNW]
Capital (North West & North Wales) (The Wirral) [CWR]
Capital (North West & North Wales) (Wrexham & Cheshire) [CWC]
Capital (Scotland) (East) [CED]
Capital (Scotland) (West) [CGL]
Capital (South Coast) [CSC]
Capital (South Wales) [CCN]
Capital (UK) [CAP]
Capital (Yorkshire) (East) [CHM]
Capital (Yorkshire) (South & West) [CYS]
Capital Anthems [CAN]
Capital Chill [CCL]
Capital Dance [CDN]
Capital XTRA (London) [CXL]
Capital XTRA (UK) [CXT]
Capital XTRA Reloaded [CXR]
CDNX, Camden Xperience (CEASED) [CDX]
Central Radio (Lancashire) [CNL]
Centreforce Radio [CTF]
Classic FM [CLA]
Classic FM Calm [CCM]
Classic FM Christmas [CXM]
Classic FM Movies [CMV]
Club Asia [CBA]
Clyde 1 (Ayrshire) [C1A]
Coast and County Radio (Hull & East Yorkshire) (formerly Great Yorkshire Radio) [CAH]
Coast and County Radio (North Yorkshire) [CAC]
Coast and County Radio Extra (CEASED) [CCX]
Coast FM (Northern Ireland) (CEASED) [CSN]
Coastal Radio DAB [CSL]
Colourful Radio [CLF]
Congregation Room 22 [C22]
Cosoro Radio [CSR]
CountryLine [CTL]
Culture City Radio [CTC]
Cyndicut Radio [CYN]
Dance Revolution [DNR]
Darbar Sahib Radio [DSB]
Dee Radio [DEE]
Delite Radio [DEL]
Devoncast Radio [DVC]
Devote Radio (CEASED) [DVT]
Digital City Radio Beats [DCB]
Digital Soul Radio [DSL]
Divine Radio London [DVN]
Downtown Radio [DTR]
Dragon Radio (North) [DGN]
Dragon Radio (South) [DRG]
Dune Radio [DUN]
Durham OnAir [DUR]
East London Radio [ELR]
Eirewave [EWV]
Energy FM (Isle of Man) [ERG]
Energy Radio (London) [ENL]
Eruption Radio [ERP]
Essentials [ESN]
Essex Estuary Radio [EES]
FG CHIC London [FGC]
Fix Radio [FIX]
Fosse 107 (Hinckley & Nuneaton) [FOH]
FreshSoundz Radio [FSZ]
Frisk Radio (Lancashire) [FSL]
Frisk Radio (North East) [FSK]
Fun Kids [FUN]
Fun Kids Junior [FNJ]
Fun Kids Junior Non-Stop [FJN]
Fun Kids Naps [FNN]
Fun Kids Non-Stop [FKN]
Fun Kids Party [FKP]
Fun Kids Pop Hits (CEASED) [FNP]
Fun Kids Soundtracks [FNS]
Funky Corner Radio [FKC]
Gaydio (Birmingham) [GYB]
Gaydio (London) [GDL]
Gaydio (Scotland) [GYS]
Gaydio (UK) [GDO]
GB Music Radio [GBM]
GenX Radio Suffolk [GNX]
Geronimo [GER]
Get Radio [GET]
Giant Radio [GNT]
GlitterBeam [GLT]
Glow Radio (Basingstoke) [GLB]
GO Radio [GOS]
Gold Radio [GLD]
Greatest Hits Radio (Berkshire & North Hampshire) [GBH]
Greatest Hits Radio (Birmingham & the West Midlands) [GWM]
Greatest Hits Radio (Black Country & Shropshire) [GBS]
Greatest Hits Radio (Bristol, Bath & the West) [GBB]
Greatest Hits Radio (Bucks, Beds & Herts) [GHB]
Greatest Hits Radio (Cambridgeshire) [GCG]
Greatest Hits Radio (Cornwall) [GCN]
Greatest Hits Radio (Coventry & Warwickshire) [GCW]
Greatest Hits Radio (Cumbria & South West Scotland) [GCM]
Greatest Hits Radio (Devon) [GDV]
Greatest Hits Radio (Dorset) (Bournemouth & Poole) [GBP]
Greatest Hits Radio (Dorset) (North & West Dorset) [GDS]
Greatest Hits Radio (East Midlands) [GEM]
Greatest Hits Radio (East Yorkshire & Northern Lincolnshire) [GHM]
Greatest Hits Radio (Essex) [GES]
Greatest Hits Radio (Gloucestershire) [GGT]
Greatest Hits Radio (Harrogate & the Yorkshire Dales) [GHD]
Greatest Hits Radio (Herefordshire & Worcestershire) [GHW]
Greatest Hits Radio (Ipswich & Suffolk) [GSF]
Greatest Hits Radio (Kent) [GKT]
Greatest Hits Radio (Lancashire) [GLA]
Greatest Hits Radio (Lincolnshire) [GLC]
Greatest Hits Radio (Liverpool & the North West) [GMS]
Greatest Hits Radio (London) [GLN]
Greatest Hits Radio (Manchester & the North West) [GMC]
Greatest Hits Radio (Norfolk & North Suffolk) [GNF]
Greatest Hits Radio (North East) (Teesside) [GTS]
Greatest Hits Radio (North East) (Tyne & Wear) [GTW]
Greatest Hits Radio (North Wales) [GNW]
Greatest Hits Radio (Northamptonshire) [GNH]
Greatest Hits Radio (Northern Ireland) [GNI]
Greatest Hits Radio (Oxfordshire) [GOX]
Greatest Hits Radio (Peterborough, Stamford & Rutland) [GSR]
Greatest Hits Radio (Plymouth) [GPM]
Greatest Hits Radio (Salisbury) [GSB]
Greatest Hits Radio (Scotland) (Ayrshire) [GAY]
Greatest Hits Radio (Scotland) (Dumfries & Galloway) [GDG]
Greatest Hits Radio (Scotland) (Edinburgh, the Lothians, Fife & Falkirk) [GED]
Greatest Hits Radio (Scotland) (Glasgow & the West) [GGL]
Greatest Hits Radio (Scotland) (North East Scotland) [GAB]
Greatest Hits Radio (Scotland) (The North of Scotland) [GNS]
Greatest Hits Radio (Scotland) (Scottish Borders & North Northumberland) [GBD]
Greatest Hits Radio (Scotland) (Tayside & Fife) [GTY]
Greatest Hits Radio (Somerset) [GSS]
Greatest Hits Radio (South Coast) [GHS]
Greatest Hits Radio (South Wales) [GSW]
Greatest Hits Radio (South Yorkshire & North Derbyshire) (High Peak & Hope Valley) [GHP]
Greatest Hits Radio (South Yorkshire & North Derbyshire) (North East Derbyshire) [GND]
Greatest Hits Radio (South Yorkshire & North Derbyshire) (South Yorkshire) [GSY]
Greatest Hits Radio (Staffordshire & Cheshire) [GST]
Greatest Hits Radio (Surrey & East Hampshire) [GSH]
Greatest Hits Radio (Sussex) [GSX]
Greatest Hits Radio (Swindon) [GSN]
Greatest Hits Radio (West Norfolk) [GWN]
Greatest Hits Radio (West Yorkshire) [GWY]
Greatest Hits Radio (Wiltshire) [GWT]
Greatest Hits Radio (York & North Yorkshire) [GYK]
Greatest Hits Radio (Yorkshire Coast) [GYC]
Greatest Hits Radio 60s [G60]
Greatest Hits Radio 70s [G70]
Greatest Hits Radio 80s [G80]
GreekBeat Radio [GKB]
Gwent Radio [GWE]
Hamdosana Radio [HOS]
Hampshire Tourist Radio [HAT]
Happy Radio [HPY]
Harrogate Hospital Radio [HGH]
Hastings Rock [HRK]
Heart (Bedfordshire) [HBF]
Heart (Bristol) [HBR]
Heart (Cambridgeshire) [HCG]
Heart (East Midlands) (Derbyshire) [HDB]
Heart (East Midlands) (Leicestershire) [HLS]
Heart (East Midlands) (Nottinghamshire) [HNT]
Heart (Gloucestershire) [HGT]
Heart (Hertfordshire) (North) [HHN]
Heart (Hertfordshire) (Watford & Hemel) [HWH]
Heart (Lancashire & Cumbria) [HLC]
Heart (Milton Keynes) [HMK]
Heart (North East) (Teesside) [HTS]
Heart (Northamptonshire) [HNH]
Heart (Oxfordshire) [HOX]
Heart (South Coast) (Hampshire & West Sussex) [HHS]
Heart (Wales) (North & Mid) [HWN]
Heart (West Midlands) [HWM]
Heart (Wiltshire) [HWT]
Heart (Yorkshire) [HYK]
Heart Musicals [HML]
Heartland Radio (Manchester) [HLM]
heat Radio [HEA]
Hellas Radio UK [HEL]
Heritage Chart Radio [HTC]
Hits Radio (Ayrshire) [HAY]
Hits Radio (Berkshire & North Hampshire) [HBN]
Hits Radio (Birmingham) [HBH]
Hits Radio (Black Country & Shropshire) [HBS]
Hits Radio (Bucks, Beds & Herts) [HHB]
Hits Radio (Cambridgeshire) [HCB]
Hits Radio (Cornwall) [HCO]
Hits Radio (County Durham, Northumberland and Tyne & Wear) [HNE]
Hits Radio (Coventry & Warwickshire) [HCW]
Hits Radio (Cumbria & South West Scotland) [HCM]
Hits Radio (Devon) [HDV]
Hits Radio (Dorset) [HBP]
Hits Radio (East Midlands) [HEM]
Hits Radio (East Yorkshire) [HHM]
Hits Radio (Edinburgh) [HED]
Hits Radio (Essex) [HES]
Hits Radio (Glasgow) [HGL]
Hits Radio (Gloucestershire) [HGS]
Hits Radio (Herefordshire & Worcestershire) [HHW]
Hits Radio (Kent) [HKN]
Hits Radio (Lancashire) [HLA]
Hits Radio (Lincolnshire & Newark) [HLI]
Hits Radio (Liverpool) [HMS]
Hits Radio (London) [HLD]
Hits Radio (Manchester) [HMC]
Hits Radio (Norfolk) [HNO]
Hits Radio (North East Scotland) [HAB]
Hits Radio (The North of Scotland) [HNS]
Hits Radio (North Wales) [HAG]
Hits Radio (North Yorkshire) [HNY]
Hits Radio (Northamptonshire) [HNN]
Hits Radio (Northern Ireland) [HNI]
Hits Radio (Oxfordshire) [HOF]
Hits Radio (Peterborough) [HPT]
Hits Radio (South Coast) [HSO]
Hits Radio (South Wales) [HWL]
Hits Radio (South Yorkshire) [HSY]
Hits Radio (Staffordshire & Cheshire) [HST]
Hits Radio (Suffolk) [HSK]
Hits Radio (Surrey) [HSR]
Hits Radio (Sussex) [HSU]
Hits Radio (Swindon) [HSN]
Hits Radio (Tayside & Fife) [HTY]
Hits Radio (Teesside) [HTE]
Hits Radio (UK) (CEASED) [HIT]
Hits Radio (West of England) [HWE]
Hits Radio (West Yorkshire) [HWY]
Hits Radio 90s [HT9]
Hits Radio 00s [HT0]
Hits Radio Chilled [HCL]
Hits Radio Pride [HPD]
The New Horizon Radio (Bedford) [HZB]
House Party Radio [HSP]
Huddle Radio [HUD]
Illuminations Radio [ILL]
Imaan One [IM1]
Impact Digital Radio [IMP]
In Demand Decades [IDD]
In Demand Radio [IDM]
Island FM [ILD]
Isle of Wight Radio [IOW]
Isle of Wight Radio Retro (CEASED) [IWR]
Isle of Wight Tourist Radio [IWT]
Isles FM [ILS]
Juice (North West England) [JNW]
Kerrang! Radio [KER]
KIC Radio [KIC]
KISS (London) [KLN]
KISS (UK) [KIS]
KISS DANCE [KSD]
KISS XTRA [KSX]
KISSTORY [KST]
KISSTORY R&B [KTR]
KL1 Radio [KL1]
kmfm (Canterbury, Whitstable & Herne Bay) [KMC]
kmfm (Maidstone) [KMM]
kmfm (Shepway & White Cliffs Country) [KMS]
LGR, London Greek Radio [LGR]
Liberty Radio [LIB]
Like Radio [LIK]
Lincs Sound [LCS]
Liverpool Live [LLV]
LMR, London Music Radio [LMS]
London ONE radio [LN1]
Love 80s (Liverpool) [L8L]
LoveLife Radio [LLF]
Luton Urban Radio [LTU]
Luv Radio [LUV]
Lyca Radio (Greater Manchester) [LYM]
Lyca Radio (London) [LYC]
Lyca Radio (Midlands) [LML]
m4dRADIO [M4D]
Made in Kent Radio [MIK]
Magic Christmas [MCM]
Magic Classical [MCL]
Magic Musicals [MMS]
Magic Radio (London & Bristol) [MLN]
Magic Radio (UK) [MGC]
Magic Soul [MGS]
Magna Mix [MGM]
Magna Radio [MAG]
Mansfield Radio [MAN]
Manx Radio (AM) [MXA]
Manx Radio (FM) [MXF]
Marcher Vibe [MCV]
Mellow Magic [MLM]
Mi-Soul [MSL]
Mission Radio [MIS]
MIX 56 [M56]
Mixtape Radio [MXT]
Mom's Spaghetti [MSP]
Moorlands Radio (Staffordshire & Cheshire) [MOS]
More Radio (Eastbourne) [MRE]
More Radio (Hastings) [MRH]
More Radio (Mid Sussex) [MRM]
More Radio (Sussex) [MRD]
More Radio (Worthing) [MRW]
More Radio Retro (CEASED) [MRR]
Nation 60s [N60]
Nation 70s [N70]
Nation 80s [N80]
Nation 90s [N90]
Nation 00s [N00]
Nation Dance [NDN]
Nation Easy Radio (Dorset) [NED]
Nation Easy Radio (Portsmouth) [NEP]
Nation Easy Radio (Southampton & Winchester) [NEH]
Nation Hits [NHT]
Nation Love [NLO]
Nation Radio (London) [NLN]
Nation Radio (North East) [NNE]
Nation Radio (Scotland) [NGL]
Nation Radio (South) (Dorset) [NDS]
Nation Radio (South) (South Hampshire & Isle of Wight) [NHS]
Nation Radio (South) (Sussex) [NSX]
Nation Radio (Suffolk) [NSF]
Nation Radio (Wales) (Ceredigion & North Wales) [NCD]
Nation Radio (Wales) (South East) [NWL]
Nation Radio (Wales) (South West) [NWW]
Nation Radio (Westcountry) (Cornwall) [NCN]
Nation Radio (Westcountry) (Devon) [NDV]
Nation Radio (Westcountry) (Somerset) [NSS]
Nation Radio (Yorkshire) [NHM]
Nation Rocks [NRK]
Nation Xmas [NCM]
News Radio UK [NWS]
Nifty UK Radio [NFT]
NonStopOldies [NSO]
Noods Radio [NOD]
North Derbyshire Radio [NDB]
North East Radio Scotland [NES]
Northern Powerhouse Radio [NPH]
Now Ayrshire Radio [NAY]
Omega Radio [OMG]
One World Radio [1WD]
Original 106 (Aberdeen & Peterhead) [ORG]
Original 106 (Fife) [ORF]
Original 106 (Tayside) [ORT]
Original 106 Gold [OGG]
Outreach Classical [OTC]
Panjab Radio [PAN]
Passion Radio [PAS]
Persian Mix Radio [PSM]
Point Blank Radio [PBK]
Positive Radio [PST]
Premier Christian Radio (London) [PCL]
Premier Christian Radio (UK) [PCR]
Premier Gospel [PCG]
Premier Praise [PCP]
PRL, Polskie Radio Londyn - Polish Radio London [PRL]
Pump Radio [PMP]
Pure West Radio [PUW]
Q Radio (Ballymena) [QBL]
Q Radio (Belfast) [QBF]
Q Radio (Coleraine) [QCR]
Q Radio (Londonderry) [QDR]
Q Radio (Mid-Ulster) [QMU]
Q Radio (Newry & Mourne) [QNR]
Q Radio (Omagh & Enniskillen) [QOE]
Radio Africana [AFR]
Radio Bath [BTH]
Radio Broadstairs [BDS]
Radio Burnley [BNL]
Radio Carmarthenshire [CRM]
Radio Caroline Flashback [CRF]
Radio Central 24 [CTB]
Radio DGH [DGH]
Radio Essex [ESX]
Radio Exe (Exeter) [EXE]
Radio Exe (Plymouth) [EXP]
Radio Exe Flashback (CEASED) [EXF]
107.8 Radio Jackie [JKE]
Radio Maria (UK) [MRA]
Radio Matryoshka [MAT]
Radio North Angus [RNA]
Radio Pembrokeshire [PEM]
Radio Skye [SKY]
Radio Victory [VIC]
Radio West Norfolk [WNF]
Radio Wester Ross [WTR]
Radio Wigwam [WWM]
Radio Woking (CEASED) [WOK]
Radio X (London) [XLN]
Radio X (Manchester) [XMC]
Radio X (UK) [XUK]
Radio X 90s (Manchester) [X9M]
Radio X 90s (UK) [X90]
Radio X 00s [X00]
Radio X Chilled [XCL]
Radio X Classic Rock [XCR]
Radio XL [RXL]
Radio Xtra [RXT]
Red Rose Radio [RRS]
Regency Radio [REG]
Retro Music Radio [RMS]
Retro Rewind (CEASED) [RRW]
Revolution Radio [REV]
Rewind Radio (Cornwall) [RWD]
Rewind Radio Retro [RWR]
RNIB Connect Radio [RBC]
Rother Radio (Doncaster & Thorne) [RTD]
Rotherham Radio (CEASED) [RTH]
Ruach Radio (CEASED) [RUA]
Sabras Radio [SAB]
Salisbury Radio [SLB]
Sami Swoi Radio [SMS]
Sanskar Radio [SAN]
Satsang Radio [SSG]
Shine 879 [SHE]
Shore Radio [SHR]
Shropshire Live [SHL]
SIBC [SIB]
Signature Radio [SIG]
Sikh Radio UK [SIK]
Silk Radio [SLK]
Skylab Radio [SKL]
Slim Radio [SLM]
Smooth Chill [SCL]
Smooth Christmas [SCM]
Smooth Radio (East Anglia) [SEA]
Smooth Radio (East Midlands) (East Midlands) [SEM]
Smooth Radio (East Midlands) (Northamptonshire & Peterborough) [SNP]
Smooth Radio (East Midlands) (Derbyshire) [SDB]
Smooth Radio (Essex) [SES]
Smooth Radio (Herts, Beds & Bucks) [S3C]
Smooth Radio (Kent) [SKT]
Smooth Radio (Lake District) [SLD]
Smooth Radio (London) [SLN]
Smooth Radio (North East) (Teesside) [STS]
Smooth Radio (North East) (Tyne & Wear) [STW]
Smooth Radio (North West) [SNW]
Smooth Radio (Scotland) [SSL]
Smooth Radio (South Coast) [SSC]
Smooth Radio (South West) [SSW]
Smooth Radio (Sussex) [SSX]
Smooth Radio (Thames Valley) [SBO]
Smooth Radio (UK) [SMT]
Smooth Radio (Wales) (North Wales) [SAG]
Smooth Radio (Wales) (South Wales) [SWS]
Smooth Radio (West Midlands) [SWM]
Smooth Radio (Westcountry) [SWC]
Soho Radio [SOH]
Solar Radio [SOL]
Soleil Radio [SLL]
South Yorkshire Radio (formerly Doncaster Radio) [SYK]
Southdown Radio [SDN]
Spice Digital [SPE]
Starpoint Radio [STP]
STV Radio (Ayrshire & North of Scotland) [STV]
STV Radio (Central Scotland) [STC]
STV Radio (North East Scotland) [STA]
STV Radio (Tayside) [STT]
Sugar Kayne Radio [SGK]
Sunnyside Gold [SUG]
Sunrise Hits [SHT]
Sunrise Radio (London) [SRL]
Sunrise Radio (UK) [SRI]
Sunrise Radio (Yorkshire) [SRY]
Sunrise Radio Gold [SRG]
Sunrise Retro [SRR]
Sunshine (Northern Ireland DAB) [SBD]
Sunshine Radio (Herefordshire) [SSH]
Sunshine Radio (Monmouthshire) [SSM]
Sunshine Radio (Shropshire) [SSS]
Swansea Bay Radio [SWB]
Swinging Radio 60s [S60]
TFS Radio [TFS]
The Music Machine 1 (CEASED) [MM1]
The Music Machine 2 (CEASED) [MM2]
The Rock Service [TRS]
The VIP Lounge [VPL]
The Voice [VCE]
The Voice 2 [VC2]
The Voice Of Doom [VOD]
This is the Coast [TCT]
Times Radio [TMS]
Together Radio [TOG]
Top Rizz Radio [TRZ]
Track Radio [TRK]
URF, University Radio Falmer [URF]
UWS Radio [UWS]
V2 Radio [V2R]
Virgin Radio [VIR]
Virgin Radio 80s [VR8]
Virgin Radio 90s [VR9]
Virgin Radio Chilled [VRC]
Virgin Radio Christmas [VRX]
Virgin Radio Legends [VRL]
Visitor Radio for Bath (CEASED) [VBA]
Visitor Radio for Hastings (CEASED) [VHS]
Voice of Islam [VIS]
WaveUp Radio [WVU]
Wild Country [WDC]
Windrush Radio [WRS]
Wyvern Timeless Classics [WTC]
Xenon Radio [XEN]
YO1 Radio [YO1]
YorkMix Radio [YMX]
Your Ilkley [YIL]
Your Skipton [YSK]
Zest (Liverpool) [ZST]

Irish RTÉ and commercial radio stations containing I in the name:
3FM (Ireland) [3IE]
8Radio.com [8RD]
98FM (Dublin) [98F]
all Classical Radio [ACL]
Beat (South East Ireland) [BET]
Christmas FM [CMS]
Classic Hits Radio [CLH]
East Coast FM (Wicklow) [ECW]
GoLoud Radio (CEASED) [GOL]
Gravity Hits [GVH]
Highland Radio [HIG]
iRadio (North East) [INE]
iRadio (North West) [INW]
KCLR 96FM (Kilkenny) [KCK]
Lazer Hits [LZH]
Live 95 [L95]
Midlands 103 [MDL]
Midwest Radio [MWR]
Nova Classic Rock [NCR]
Ocean FM (Sligo & North Leitrim) [OCS]
Onic 80s [O80]
Onic 90s [O90]
Onic Alternative [OAL]
Onic Christmas (formerly Onic Irish) [OCM]
Onic Country [OCN]
Onic Hits [OHT]
Onic Kids [OKD]
Radio Kerry [KRY]
Radio Maria (Ireland) [MAR]
Radio Nova [NOV]
Raidió na Life [RNL]
Raidió Rí-Rá [RRR]
RTÉjr / RTÉ Chill (CEASED) [RJR]
RTÉ Lyric fm [RLY]
RTÉ Radio 1 [RR1]
RTÉ Radio 1 Extra (CEASED) [R1X]
RTÉ Raidió na Gaeltachta [RNG]
Shannonside FM [SNS]
South East Radio [SER]
SPIN 1038 [SPD]
SPIN South West [SPS]
SPIN's K-Pop Radio [SKP]
Spirit Radio [SPI]
Sunshine 106.8 [SSD]
Sunshine Soul [SUS]
Tipp FM [TIP]
Today FM Country Hits [TCH]
UCB Ireland [UIE]
Zenith Classic Rock [ZCR]