🇬🇺 Guam · +1

Guam mobile number prefixes

18 number prefixes and the 4 networks they were assigned to: GTA, Choice Phone, i CAN_GSM, PTI PACIFICA. Paste a number to see its network.

Prefixes by network

Prefixes are written the way numbers are dialled inside Guam, including the trunk prefix 1. From abroad, drop the 1 and add +1: (671) 300-1234 becomes +1 671-300-1234.

GTA

10 prefixes

1671480167148216714831671485167148616714871671488167148916718641671867

Choice Phone

4 prefixes

1671868167187167188167189

i CAN_GSM

3 prefixes

167183167184167185

PTI PACIFICA

1 prefixes

167174

Source: Google libphonenumber carrier metadata. Because of number portability, a number may have moved to another network.

Guam mobile prefixes: FAQ

How can I tell which network a Guam number is on?

Look at the first digits after the trunk prefix and compare them with the table on this page, or paste the number into the network finder. For example, Guam numbers starting with 1671480 were assigned to GTA.

Which mobile networks are there in Guam?

Number ranges in Guam are assigned to GTA, Choice Phone, i CAN_GSM, PTI PACIFICA.

Is the prefix always correct for the current network?

No. Guam numbers can usually be ported to another operator while keeping the number, so the prefix tells you which network the number range was originally assigned to. A carrier lookup through the numlookupapi API returns the carrier the number data points to.

What is the country code of Guam?

The country code of Guam is +1. See the Guam country code page for dialing instructions and number formats.

Phone number API

Get the carrier of any number by API

numlookupapi checks any phone number worldwide in one request and returns validity, line type, carrier, location and every standard format as JSON.

Read the documentation

100 free requests every month. No credit card required.

GET https://api.numlookupapi.com/v1/validate/+16713001234

{
  "valid": true,
  "number": "12069220880",
  "local_format": "2069220880",
  "international_format": "+12069220880",
  "country_prefix": "+1",
  "country_code": "US",
  "country_name": "United States of America",
  "location": "Seattle",
  "line_type": "landline",
  "e164_format": "+12069220880",
  "national_format": "(206) 922-0880"
}