SN1 DISTRICT · SWINDON

Swindon mobile coverage Three 100% indoors here, 84% across Swindon SN1 · Swindon

No network wins SN1 on overall coverage: all four score 100/100.

SN1: Swindon, Wroughton, Liden, Nythe, Eldene, Stratton St Margaret, Dorcan, Walcot, Eastcott.

SN1 scores

=
EE
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
=
O2
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
=
Three
Overall: 100/100
5G
100%
4G
100%
Indoor
100%
=
Vodafone
Overall: 100/100
5G
100%
4G
100%
Indoor
100%

Ofcom Mobile Coverage data (May 2025), measured across 134 addresses in 6 sampled postcodes: SN1 1AH, SN1 3JB, SN1 3LA, SN1 3NN, SN1 3PH, SN1 5NX. Methodology.

How SN1 compares

Against the Swindon average

  • Three indoors: 100% here, 84% across Swindon (+16).
  • Three on 5G-grade outdoor signal: 100% here, 84% across Swindon (+16).

Weakest spot in Swindon: SN6 Latton, where Three reaches 7% indoors.

Indoor signal around SN1

Districtkm awayEEO2ThreeVodafone
SN1 Swindon (here) – 100%100%100%100%
SN2 Swindon, Haydon Wick 2 100%100%100%100%
SN3 Covingham, South Marston 3 100%100%100%100%
SN5 Swindon, Purton 4 100%100%100%100%
SN4 Royal Wootton Bassett, Chiseldon 4 98%100%89%100%
Swindon average – 96%98%84%95%

Biggest difference nearby: Three indoors, 100% here and 89% in SN4 Royal Wootton Bassett, 4 km away.

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1pMobile runs on EE's network: £5 a month for 5GB (read 19 October 2026). A price, not a coverage ranking: Ofcom separates no network here.

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