W1B 3 postcode sector in the W1B district

W1B 3 is a sector of the W1B district: every postcode that starts W1B 3. It has 18 postcodes in use, one of them a large-user postcode. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the W1B 3 sector, by gigabit broadband

Map of every postcode in the W1B 3 sector, by gigabit broadband Of the 18 postcodes in the W1B 3 sector that ONS places, 1 have no home or business that can get gigabit, 3 have some that can, 13 can all get it and 1 have no Ofcom figure. Places named: West End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A40 W1B 3AA: gigabit for allW1B 3AF: gigabit for allW1B 3AG: gigabit for allW1B 3AH: gigabit for allW1B 3AP: gigabit for allW1B 3AQ: gigabit for allW1B 3AS: gigabit for allW1B 3BL: gigabit for allW1B 3BN: gigabit for allW1B 3DA: gigabit for allW1B 3DB: gigabit for allW1B 3DE: gigabit for allW1B 3AU: some gigabitW1B 3BR: some gigabitW1B 3DG: some gigabitW1B 3BJ: no gigabit West End Map of every postcode in the W1B 3 sector, by gigabit broadband Of the 18 postcodes in the W1B 3 sector that ONS places, 1 have no home or business that can get gigabit, 3 have some that can, 13 can all get it and 1 have no Ofcom figure. Places named: West End. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A40 West End
  • No home or business can get gigabit: 1
  • Some can get gigabit: 3
  • Every home and business can get gigabit: 13
  • Ofcom gives no figure: 1

Of the 18 postcodes in the W1B 3 sector that ONS places, 1 have no home or business that can get gigabit, 3 have some that can, 13 can all get it and 1 have no Ofcom figure.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.

Postcodes without gigabit

W1B 3BJ

Postcodes in W1B 3

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

W1B 3AAW1B 3AFW1B 3AGW1B 3AHW1B 3APW1B 3AQW1B 3ASW1B 3ATW1B 3AUW1B 3BJW1B 3BLW1B 3BNW1B 3BRW1B 3DAW1B 3DBW1B 3DEW1B 3DGW1B 3HH

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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