Caller ID for
Area code 671
Area code 671 Hagåtña, Guam
Area code 671 is in Guam, with numbers assigned in Hagåtña. It’s 2:10 PM there now.
- State
- GuamThe only area code in Guam
- Time zone
- Chamorro2:10 PM there now
- Exchanges
- 951 place
- Overlay
- NoneThe only code for its area
- No sign-up
- We never contact the number
- Spam risk included
Looking up the caller ID…
Caller ID names come from phone carrier records and are often outdated or missing. Our full report matches about 86% of numbers to TransUnion® credit data, with their FICO® Score 4.
See who’s behind this number
The full report: the owner, their address and a real FICO® Score 4.
A full report shows the owner, their address, FICO Score 4 and credit profile. The preview here is blurred sample text.
$1 today · 7-day Platinum trial, then $59/month · cancel anytime
Full reports include credit data, so you’ll confirm a permissible purpose first, like the person’s consent or their application. Caller ID doesn’t need one.
Free lookups come back in
00h00m00s
Get 100+ lookups a month
Or try Platinum: $1 for 7 days, then $59/month · cancel anytime
Where area code 671 is
Hagåtña holds most of them: 100% of the exchanges.
- Hagåtña95
Phone companies in 671
95 blocks of numbers in 671 are held by 6 phone companies. The most belong to Teleguam Holdings (53), PTI Pacifica (22) and Guam Wireless Telephone (14).
A large share, about 85%, belongs to competitive and internet phone carriers; wireless networks hold 15% and local phone and cable companies 0%.
A block’s holder is the company it was first assigned to; numbers can move to other carriers since.
History and overlays
671 went into service in 1997.
8 new exchanges were assigned since 2021, the latest in December 2025.
Calling 671
It’s 2:10 PM Chamorro time in 671 right now.
From elsewhere in the U.S., dial 1, 671 and the 7-digit number.
Nearby area codes
671 is Guam’s only area code.
From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.
More than three a day
Every plan includes caller ID lookups.
Caller ID and carrier lookups every month, plus full reports with the owner, their address and a real FICO® Score 4.
Basic
$29a month
Try it: $1 for 1 day
- 100 caller ID & carrier lookups a month
- 3 full reports a month
- Owner, address and FICO® Score 4
- Or $99 a year
$1 today, then $29/month after 1 day · cancel anytime
Most lookups
Platinum
$59a month
Try it: $1 for 7 days
- 1,000 caller ID & carrier lookups a month
- 5 full reports a month
- Owner, address and FICO® Score 4
- Or $199 a year
$1 today, then $59/month after 7 days · cancel anytime
Just one report
$19.99one time
No subscription
- Who the number belongs to
- Current address
- FICO® Score 4 and credit profile
$19.99 once · nothing to cancel
You pick a plan after looking up a number. Full reports need a permissible purpose, like the person’s consent. Caller ID lookups past a plan’s monthly amount are 5¢ each; during a trial, up to 10 are included.
Questions about 671
Where is area code 671?
In Guam, covering Hagåtña.
What time zone is 671 in?
Chamorro time. It was 2:10 PM there when this page loaded.
Is 671 an overlay?
No. 671 is the only area code for its area right now.
Which phone companies have 671 numbers?
6 companies hold blocks; the most belong to Teleguam Holdings, PTI Pacifica and Guam Wireless Telephone. About 15% of blocks are wireless.
Is 671 running out of numbers?
Not on record. 8 new exchanges have been assigned since 2021.