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Montserrat phone numbers

(664) 492-3456

International +1 664-492-3456, E.164 +16644923456

The numbering plan of Montserrat: formats, lengths, the regular expression for each line type and the prefix blocks allocated to each carrier, as ITU publishes it. A pattern says what a number looks like and where it was allocated; whether it is in service, and who serves it today, is a different question (below).

At a glance

Country code
+1
Exit code
011
Trunk prefix
1
Mobile digits
10
Fixed-line digits
10
Number portability
yes
Carriers on record
2

How to dial a number in Montserrat from anywhere: the dialling helper.

Mobile prefix blocks by operator
Cable & Wireless
1
Digicel
1

prefix blocks allocated, from the published records; a block is a prefix at the plan's allocation length

Check a number

Valid mobile number in Montserrat.

+1
country code
664
network code
4923456
subscriber number
CountryMontserrat numbering plan
Line typeMobile
Carrier the block was allocated toNo carrier on record for this prefix
E.164+16644923456
International+1 664-492-3456
National(664) 492-3456
RFC 3966tel:+1-664-492-3456

Source: National numbering plan: Montserrat (ITU)

Test a pattern

Tick the line types you accept, copy the combined pattern, and paste numbers to see which range each one falls in. Numbers are reduced to their national digits first (no spaces, no +1, no trunk prefix 1); nothing leaves your browser.

Line types to accept
^(?:664(?:3(?:49|9[1-6])|49[2-6])\d{4}|6644(?:1[0-3]|91)\d{4})$
NumberNational digitsMatches
(664) 492-34566644923456Mobile
(664) 491-23456644912345Fixed line
(800) 212-34568002123456not in the ticked types
(900) 212-34569002123456not in the ticked types

Need another country, or the pattern as code in your language? Open the regex builder.

Walk the prefixes

Type the first digits of a number in national form, or tap them: the operators holding blocks under those digits, then the block a full prefix falls in. 2 blocks held by 2 operators are on record.

Type the first digits of a number in national form.

In full

Cheat sheet

Country code+1
International exit code (dialling out)011
Trunk prefix (national dialling)1
Mobile number length (national digits)10
Fixed-line number length (national digits)10 (7 dialled locally)
E.164 example+16644923456
RFC 3966 (tel: URI)tel:+1-664-492-3456
Mobile number portabilityYes

Line types and their regular expressions

Match each pattern against the national significant number: digits only, without the trunk prefix 1 and without +1. The patterns follow the national numbering plan and are anchored here.

Line typeNational digitsExample, nationalExample, E.164
Mobile10(664) 492-3456+16644923456
Fixed line10(664) 491-2345+16644912345
Toll-free10(800) 212-3456+18002123456
Premium-rate10(900) 212-3456+19002123456
Personal number10(500) 234-5678+15002345678

Mobile, 10 digits

^(?:664(?:3(?:49|9[1-6])|49[2-6])\d{4})$

Fixed line, 10 digits

^(?:6644(?:1[0-3]|91)\d{4})$

Toll-free, 10 digits

^(?:8(?:00|33|44|55|66|77|88)[2-9]\d{6})$

Premium-rate, 10 digits

^(?:900[2-9]\d{6})$

Personal number, 10 digits

^(?:52(?:3(?:[2-46-9][02-9]\d|5(?:[02-46-9]\d|5[0-46-9]))|4(?:[2-478][02-9]\d|5(?:[034]\d|2[024-9]|5[0-46-9])|6(?:0[1-9]|[2-9]\d)|9(?:[05-9]\d|2[0-5]|49)))\d{4}|52[34][2-9]1[02-9]\d{4}|5(?:00|2[125-9]|3[23]|44|66|77|88)[2-9]\d{6})$

Carrier prefix blocks

The operator each prefix block was allocated to, in national form, from the published allocation records for +1. Numbers are portable, so this is the original allocation, not necessarily the carrier serving a number today.

OperatorLine typePrefix blocksRanges
Cable & WirelessMobile1(664) 34
DigicelMobile1(664) 39

Questions developers ask

How many digits does a phone number in Montserrat have?
Mobile numbers have 10 national digits (7 when dialled locally). Fixed line numbers have 10 national digits (7 when dialled locally). That is the national number, without the country code +1 and without the trunk prefix 1.
What is the country code for Montserrat?
+1. From abroad, dial your own exit code, then 1, then the national number without its trunk prefix 1. From inside Montserrat, the exit code for international calls is 011.
Which prefixes are mobile numbers in Montserrat?
Mobile numbers in Montserrat use area code 664 and 12 of its central office codes (the three digits after the area code), such as 349, 396, 496; the mobile regular expression on this page lists them all (example: (664) 492-3456). Dialled within the North American Numbering Plan, every number reads alike: 1, the area code, then seven digits.
Can a mobile number in Montserrat be ported to another carrier?
Yes. Montserrat has mobile number portability, so a prefix tells you the carrier a number was originally allocated to, not necessarily the one serving it today. Only a live carrier lookup (an HLR or MNP query) answers that.