W1B 4 postcode sector in the W1B district

W1B 4 is a sector of the W1B district: every postcode that starts W1B 4. It has 65 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 4 sector, by gigabit broadband

Map of every postcode in the W1B 4 sector, by gigabit broadband Of the 65 postcodes in the W1B 4 sector that ONS places, 3 have no home or business that can get gigabit, 8 have some that can, 48 can all get it and 6 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. W1B 4BY: no Ofcom figureW1B 4ES: no Ofcom figureW1B 4BL: gigabit for allW1B 4BN: gigabit for allW1B 4BP: gigabit for allW1B 4BQ: gigabit for allW1B 4BX: gigabit for allW1B 4DA: gigabit for allW1B 4DE: gigabit for allW1B 4DG: gigabit for allW1B 4DJ: gigabit for allW1B 4DW: gigabit for allW1B 4DY: gigabit for allW1B 4DZ: gigabit for allW1B 4ED: gigabit for allW1B 4EE: gigabit for allW1B 4EF: gigabit for allW1B 4EN: gigabit for allW1B 4EZ: gigabit for allW1B 4HL: gigabit for allW1B 4HP: gigabit for allW1B 4HS: gigabit for allW1B 4HT: gigabit for allW1B 4HX: gigabit for allW1B 4HY: gigabit for allW1B 4HZ: gigabit for allW1B 4JA: gigabit for allW1B 4JD: gigabit for allW1B 4JP: gigabit for allW1B 4JR: gigabit for allW1B 4LY: gigabit for allW1B 4NA: gigabit for allW1B 4NB: gigabit for allW1B 4NF: gigabit for allW1B 4NG: gigabit for allW1B 4NH: gigabit for allW1B 4NJ: gigabit for allW1B 4NR: gigabit for allW1B 4BG: gigabit for allW1B 4AD: some gigabitW1B 4BD: some gigabitW1B 4BF: some gigabitW1B 4BH: some gigabitW1B 4BS: some gigabitW1B 4JG: some gigabitW1B 4BU: some gigabitW1B 4ND: some gigabitW1B 4AB: no gigabitW1B 4DH: no gigabitW1B 4DQ: no gigabit West End Map of every postcode in the W1B 4 sector, by gigabit broadband Of the 65 postcodes in the W1B 4 sector that ONS places, 3 have no home or business that can get gigabit, 8 have some that can, 48 can all get it and 6 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. West End
  • No home or business can get gigabit: 3
  • Some can get gigabit: 8
  • Every home and business can get gigabit: 48
  • Ofcom gives no figure: 6

Of the 65 postcodes in the W1B 4 sector that ONS places, 3 have no home or business that can get gigabit, 8 have some that can, 48 can all get it and 6 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 4ABW1B 4DHW1B 4DQ

Postcodes in W1B 4

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 4ABW1B 4ADW1B 4AZW1B 4BDW1B 4BFW1B 4BGW1B 4BHW1B 4BLW1B 4BNW1B 4BPW1B 4BQW1B 4BRW1B 4BSW1B 4BTW1B 4BUW1B 4BXW1B 4BYW1B 4BZW1B 4DAW1B 4DEW1B 4DFW1B 4DGW1B 4DHW1B 4DJW1B 4DNW1B 4DQW1B 4DWW1B 4DYW1B 4DZW1B 4EAW1B 4EBW1B 4EDW1B 4EEW1B 4EFW1B 4EGW1B 4ENW1B 4ESW1B 4EZW1B 4HBW1B 4HLW1B 4HPW1B 4HSW1B 4HTW1B 4HWW1B 4HXW1B 4HYW1B 4HZW1B 4JAW1B 4JDW1B 4JGW1B 4JPW1B 4JRW1B 4LYW1B 4LZW1B 4NAW1B 4NBW1B 4NDW1B 4NEW1B 4NFW1B 4NGW1B 4NHW1B 4NJW1B 4NQW1B 4NRW1B 4RS

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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