Guam, United States
Chamorro Time
12:26 PM
Area Code
671
State / Province
Guam
Country
United States
Time Zone
Chamorro Time
Area code 671 covers 1 city and community across Guam, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+16715550100">+16715550100</a><a href="tel:+16715550199">+16715550199</a>Look up which exchange in Guam a specific 671 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
95 active prefixes in this area code, assigned as 95 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–95 of 95
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 671-201 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-300 | A | Agana | Landline or VoIP | PACIFIC DATA SYSTEMS - GU (332E) | TAMUNING | 871 | — | — |
| 671-333 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-339 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-343 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-344 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-349 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-355 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-362 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-366 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-400 | A | Agana | Landline or VoIP | PACIFIC DATA SYSTEMS - GU (332E) | TAMUNING | 871 | — | — |
| 671-456 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-471 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-472 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-473 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-474 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-475 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-477 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-478 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-479 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-480 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-482 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-483 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-484 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-485 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-486 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-487 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-488 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-489 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-562 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-563 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-564 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-565 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-588 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-632 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-633 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-634 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-635 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-637 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-638 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-642 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-644 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-645 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-646 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-647 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-648 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-649 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-653 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-654 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-678 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-682 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-683 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-685 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-686 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-687 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-688 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-689 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-707 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-726 | A | Agana | Landline or VoIP | PTI PACIFICA INC. DBA IT&E (599E) | HARMON | 871 | — | — |
| 671-727 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-734 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-735 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-747 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-777 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-787 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-788 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-789 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-797 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-828 | A | Agana | Landline | TELEGUAM HOLDINGS, LLC (3800) | HAGATNA | 871 | — | — |
| 671-838 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | HARMON | 871 | — | — |
| 671-848 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | HARMON | 871 | — | — |
| 671-858 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | HARMON | 871 | — | — |
| 671-864 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-865 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-867 | A | Agana | Landline or VoIP | TELEGUAM HOLDINGS, LLC (3922) | TAMUNING | 871 | — | — |
| 671-868 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | TUMON | 871 | — | — |
| 671-878 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | TUMON | 871 | — | — |
| 671-888 | A | Agana | Wireless | CHOICE PHONE, LLC DBA ICONN (1085) | TUMON | 871 | — | — |
| 671-898 | A | Agana | Wireless | CHOICE PHONE, LLC DBA ICONN (1085) | TUMON | 871 | — | — |
| 671-922 | A | Agana | Landline or VoIP | PTI PACIFICA INC. DBA IT&E - GU (335E) | HARMON | 871 | — | — |
| 671-929 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-967 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-969 | A | Agana | Landline or VoIP | DOCOMO PACIFIC, INC. (897F) | DEDEDO | 871 | — | — |
| 671-971 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-972 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-977 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-979 | A | Agana | Landline or VoIP | PTI PACIFICA INC. DBA IT&E - GU (335E) | HARMON | 871 | — | — |
| 671-987 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-988 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-989 | A | Agana | Landline or VoIP | DOCOMO PACIFIC, INC. (897F) | DEDEDO | 871 | — | — |
| 671-991 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-996 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
| 671-997 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-998 | A | Agana | Wireless | PTI PACIFICA INC. (387C) | SUSUPE(SAIPAN) | 871 | — | — |
| 671-999 | A | Agana | Wireless | GUAM WIRELESS TELEPHONE COMPANY, LLC (3945) | TAMUNING | 871 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
95
Assignment Blocks
95
Rate Centers
1
Carriers of Record
8
| Type | Blocks | Share |
|---|---|---|
| Landline | 40 | 42% |
| Landline or VoIP | 20 | 21% |
| Wireless | 35 | 37% |
| Carrier | Blocks |
|---|---|
| TELEGUAM HOLDINGS, LLC | 53 |
| PTI PACIFICA INC. | 19 |
| GUAM WIRELESS TELEPHONE COMPANY, LLC | 14 |
| CHOICE PHONE, LLC DBA ICONN | 2 |
| DOCOMO PACIFIC, INC. | 2 |
| PACIFIC DATA SYSTEMS - GU | 2 |
| PTI PACIFICA INC. DBA IT&E - GU | 2 |
| PTI PACIFICA INC. DBA IT&E | 1 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Agana | 95 | 95 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 671 is a North American Numbering Plan (NANP) telephone area code assigned to Guam, United States. It is the sole area code assigned to Guam, covering the entire state or province under a single numbering plan area.
Yes. 671 is an active North American Numbering Plan (NANP) area code, currently assigned to Guam, United States. It is safe to answer or dial calls using this area code.
Area code 671 covers 1 city and community in Guam, including Agana. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 671 area code observe Chamorro Time (IANA timezone: Pacific/Guam). When placing a call to a 671 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Guam, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 671 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 671 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 671 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +16715550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.