What does a IP29 postcode tell you?

That the address lies in the IP29 district of the IP (Ipswich) postcode area, which the directory places around Suffolk. The inward half of the full postcode narrows it to a street or a building; the district alone does not, and an address written with a district and no inward half cannot be checked against the register.

Does a street listed here mean an address on it exists?

It means OS Open Names lists a road of that name under the district, which is what the address lookup answers as a street-level match. It says nothing about any building on it: Great Britain publishes no open register of buildings, so the lookup answers exists: null there and confirms the street alone.

Who lives at these postcodes?

Nobody on this page. A postcode directory says whether a code is in use, never who is there, and a streets register lists roads, not occupants. The address lookup carries no field about a person and never will.

IP29 postcode district

What the public directories installed here say about the IP29 postcode district: how many of its postcodes are in use, the places OS Open Names lists for them, the streets it files under the district and the district's centroid. Counted from the national postcode directory and OS Open Names on 2026-09-18, and never about who is at an address.

postcode area	IP (Ipswich)
live postcodes	408
terminated postcodes	77
streets listed	176
centroid	52.19083, 0.65900
counted on	2026-09-18

Places the directory lists for IP29

OS Open Names places the district's postcodes in these settlements, boroughs, counties and regions, most often first. A town written as any of them matches the directory in an address lookup, and one written as another place in the IP area is reported but not scored.

Suffolk
Eastern
West Suffolk
Babergh
Barrow
Horringer
Lawshall
Chedburgh
Brockley
Shimpling Street
Hoggard's Green
Hargrave
Cross Green
Chevington
Tan Office Green
Whepstead
Hartest
Burthorpe
Denham
Broad Green
Hawkedon
Denham End
Great Saxham
Depden

Postcodes in use

408 postcodes in IP29 were in use on the day of the count. A postcode directory says whether a code is in use, never who is there. 77 of its 485 postcodes have been terminated: a real address written with one has moved on, which is not the same thing as a typo, and the address lookup scores it rather than refusing it.

Centroid: 52.19083, 0.65900 — the mean of the live postcodes' centroids, which locates the district, not any building in it.

Streets filed under IP29

OS Open Names files 176 roads under IP29. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent.

Ancells Close
Aveley Lane
B1066
Banhams Yard
Barn Field
Barnfield
Barn Meadow
Barrow Hill
Barrow Road
Beale Road
Beechcroft
Bell's Lane
Benwell Close
Birdbrook
Blind Lane
Bluebell Way
Braggon's Hill
Brands Lane
Brittons Crescent
Brittons Road

the first 20 of 176, alphabetically

Check an address in IP29

The address checker opens on Great Britain with the district in the field: add the street, the number and the full postcode, and it answers the postcode's status, whether the street is filed under the district, and what kind of delivery point the address names.

Check an address in IP29

curl https://spaw.co/api/v1/address \
  -H "Authorization: Bearer sk_live_…" \
  -H "Content-Type: application/json" \
  -d '{"address": "10 Downing Street, London IP29 …", "country": "GB"}'

Common questions about IP29

What does a IP29 postcode tell you?: That the address lies in the IP29 district of the IP (Ipswich) postcode area, which the directory places around Suffolk. The inward half of the full postcode narrows it to a street or a building; the district alone does not, and an address written with a district and no inward half cannot be checked against the register.
Does a street listed here mean an address on it exists?: It means OS Open Names lists a road of that name under the district, which is what the address lookup answers as a street-level match. It says nothing about any building on it: Great Britain publishes no open register of buildings, so the lookup answers exists: null there and confirms the street alone.
Who lives at these postcodes?: Nobody on this page. A postcode directory says whether a code is in use, never who is there, and a streets register lists roads, not occupants. The address lookup carries no field about a person and never will.

Where the counts come from

ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.

Data synced on 2026-09-18: the newest register or postcode directory copy installed here.

Other districts in IP

Wrong result, or is it about you? If this tool said something you think is wrong, tell us and a person reads it. If Spaw is holding data about you and you never signed up here — a customer may have had your address verified, or reported that a message to it bounced — erase it yourself, confirmed by mail to that address and with no account needed.

More free tools

All free tools

Need this at scale?

The Spaw API runs the same checks plus mailbox-level SMTP verification, batch and bulk endpoints, and list monitoring — 10 free lookups a month, no card required.

Get your API key