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01787 area-code lookup

01787 Area Code — Sudbury, Long Melford & Glemsford

01787 is the UK dialling code for Sudbury in Suffolk, also serving Long Melford, Glemsford and Great Waldingfield, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 264 distinct 01787 numbers across 304 public lookups.

Quick facts

Area code

01787

Location

Sudbury

County

Suffolk

Region

East of England

Number type

Geographic landline

Number format

01787 XXX XXX

Operators serving

8+

Call cost

Standard rate

About the 01787 dialling code

01787 is the UK geographic dialling code for Sudbury, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Sudbury area.

A full Sudbury number is normally written as 01787 XXXXXX. You can dial the local part on its own from within the same area, or the full number from anywhere in the UK.

Because of UK number portability and internet calling, a 01787 number no longer guarantees the caller is physically in Sudbury. Fraudsters also "spoof" local codes like 01787 so an unknown call looks like a nearby business or neighbour — so treat an unexpected call on what is actually said, not on the area code alone.

Map of the 01787 dialling area

The marker shows Sudbury; the shaded circle is an approximate indication of the area the 01787 code serves — exact Ofcom charging-area boundaries are irregular and don't follow a neat radius.

Map data © OpenStreetMap contributors. View larger map

Areas typically served by 01787

Settlements in and around the Sudbury dialling area that typically use 01787 numbers. Approximate — Ofcom charging-area boundaries don't follow town or county lines exactly, and properties near a boundary may take a neighbouring code.

Long Melford01787 areaGlemsford01787 areaGreat Waldingfield01787 areaBures Saint Mary01787 areaLavenham01787 areaBoxford01787 areaCastle Hedingham01787 areaCavendish01787 areaMonks Eleigh01787 area

Calling 01787 from abroad

From outside the UK, dial your international access prefix, then the UK country code 44, then 1787 (the area code without its leading zero) and the local number.

Calling fromDial
United States & Canada011 44 1787 …
Europe / most of the world00 44 1787 …
Australia0011 44 1787 …
Any mobile phone+44 1787 …

History of the 01787 code

The code was 0787 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01787.

In the letter-dialling era the code had the mnemonic SU7 — on an old rotary dial, the letters SU (from Sudbury) sat on the same holes as the digits 787, so subscribers literally dialled the start of the town's name.

Top searched 01787 numbers

These are the 01787 numbers most-looked-up by visitors to our number checker. Click any number to see its full lookup page with risk-level, range holder, and community reports.

NumberSearchesLast looked up
01787 7031386 17 Jun 2026
01787 7361905 21 Jun 2026
01787 7190014 25 Jun 2026
01787 7367064 19 Jun 2026
01787 3742543 26 Jun 2026
01787 7046212 11 Jul 2026
01787 7034662 10 Jul 2026
01787 2100012 5 Jul 2026
01787 3839982 4 Jul 2026
01787 3112082 4 Jul 2026
01787 2771502 4 Jul 2026
01787 3700662 2 Jul 2026
01787 7362002 2 Jul 2026
01787 3216002 1 Jul 2026
01787 3142202 1 Jul 2026
01787 2207972 29 Jun 2026
01787 7367802 27 Jun 2026
01787 7362832 27 Jun 2026
01787 7032202 27 Jun 2026
01787 7362902 26 Jun 2026

Is a call from 01787 safe?

Most 01787 calls are ordinary local calls from Sudbury homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01787 prefix so you are more likely to answer. Never share bank details, passwords or one-time security codes with an unexpected caller, even when the number looks local — hang up and call the organisation back on a number you have verified yourself.

To call a 01787 (Sudbury) number from outside the UK, drop the leading zero and dial +44 1787 followed by the local number.

Operators serving Sudbury

These UK communications providers have been allocated 01787 number blocks by Ofcom. The number of blocks per operator gives a rough sense of how widely each provider serves this area.

Provider (Ofcom-allocated)Allocated blocks
BT16
Vodafone Ltd (C&W)7
Magrathea Telecommunications Limited6
TalkTalk Communications Limited5
GCI Network Solutions Limited3
Fuse 2 Communications Ltd3
Served Up Limited2
Digital Space Group Limited2

Ofcom number ranges on 01787

Ofcom's National Numbering Plan lists 370 number blocks under 01787, of which 137 are allocated to 97 communications providers. The first allocated blocks are shown below — look up any full number with the number checker to see its exact range holder.

Number blockStatusRange holder (Ofcom-allocated)
01787200…AllocatedLinear Telecoms Limited
01787201…AllocatedNexbridge Communications Limited
01787203…AllocatedOrbtalk Limited
01787204…AllocatedTalkTalk Communications Limited
01787206…AllocatedInternexus Networks Limited
01787207…AllocatedInet Telecoms Ltd (Voipfone)
01787208…AllocatedHello Telecom (UK) Limited
01787209…AllocatedSimwood eSMS Limited
0178721…AllocatedBT
0178722…AllocatedBT
0178723…AllocatedBT
0178724…AllocatedBT

Showing 12 of 137 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.

How to block and report 01787 spam calls

Block or report 01787

  • You can block 01787 directly from your recent-calls list on iPhone or Android, and forward scam texts free to 7726.
  • Scam or fraud calls should be reported to Action Fraud (0300 123 2040) or Police Scotland (101); persistent marketing calls to the ICO / TPS.

Full step-by-step instructions for every phone, network-level blocking and all UK reporting routes are in our guide: How to block and report unwanted calls in the UK.

How to stop unwanted calls for good

Blocking 01787 numbers stops that one number, but determined nuisance callers simply switch numbers. Silencing unknown callers, enabling your network's free spam shield and registering with the TPS cut the volume across the board — our canonical guide walks through each step: How to block and report unwanted calls in the UK.

Frequently asked questions about the 01787 code

Where is the 01787 area code?

The 01787 area code is allocated by Ofcom to Sudbury in Suffolk, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Long Melford, Glemsford, Great Waldingfield and nearby villages.

Is 01787 always a Sudbury number?

Numbers with the 01787 prefix were originally allocated by Ofcom to Sudbury. With UK number portability and VoIP allowing geographic relocation while keeping the same number, the call origin can differ from the original area, but the prefix's official assigned location remains Sudbury.

How do I block 01787 spam calls?

On iPhone, tap the (i) next to the number in Recents and choose Block this Caller. On Android, long-press the number in Recents and choose Block. To prevent unknown 01787 numbers ringing, enable Settings → Phone → Silence Unknown Callers (iPhone) or your dialler's spam filter (Android). Forward spam texts to 7726 free of charge.

How much does a 01787 call cost?

Calls to UK 01787 geographic numbers are charged at your provider's standard rate and are usually included in inclusive minutes on any modern landline or mobile plan.

Neighbouring dialling codes

Codes covering areas around Sudbury — useful when a caller is nearby but outside the 01787 boundary.

Living in or moving to Sudbury?

Our free postcode reports cover house prices, crime, broadband and schools for the districts around Sudbury.

Check another UK number

Have the full 10- or 11-digit number? The UK Phone Number Checker shows the Ofcom range holder, risk level, and any community reports for that specific number.

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