NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

SAIPAN prefixes in area code 670

NANPA records 31 assigned NXX blocks to rate center SAIPAN in area code 670, 88.6% of the 35 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 3 holders hold those blocks, the largest being PTI PACIFICA INC. (15), MICRONESIAN TELECOMMUNICATIONS CORPORATION (13), GUAM WIRELESS TELEPHONE COMPANY, LLC (3). The earliest assignment on record here is 2002-05-17 and the most recent 2018-04-20.

31 assigned blocks – 88.6% of 670
3 holders of record
0 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
670-233 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-234 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-235 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-236 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-237 MICRONESIAN TELECOMMUNICATIONS CORPORATION 2005-06-01 no yes
670-256 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-284 PTI PACIFICA INC. 2018-04-20 no yes
670-285 PTI PACIFICA INC. 2005-01-25 no yes
670-286 PTI PACIFICA INC. – no yes
670-287 PTI PACIFICA INC. – no yes
670-288 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-321 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-322 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-323 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-328 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-483 GUAM WIRELESS TELEPHONE COMPANY, LLC – no yes
670-484 GUAM WIRELESS TELEPHONE COMPANY, LLC 2002-05-17 no yes
670-664 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-682 MICRONESIAN TELECOMMUNICATIONS CORPORATION – no yes
670-783 PTI PACIFICA INC. 2013-01-31 no yes
670-785 PTI PACIFICA INC. 2010-07-02 no yes
670-788 PTI PACIFICA INC. – no yes
670-789 PTI PACIFICA INC. 2007-02-26 no yes
670-838 PTI PACIFICA INC. 2004-08-25 no yes
670-848 PTI PACIFICA INC. 2008-10-10 no yes
670-858 PTI PACIFICA INC. 2008-10-10 no yes
670-868 PTI PACIFICA INC. 2003-03-10 no yes
670-878 PTI PACIFICA INC. 2005-01-13 no yes
670-888 PTI PACIFICA INC. 2002-07-30 no yes
670-898 PTI PACIFICA INC. 2004-08-24 no yes
670-989 GUAM WIRELESS TELEPHONE COMPANY, LLC 2005-04-05 no yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
PTI PACIFICA INC. – 15 48.4%
MICRONESIAN TELECOMMUNICATIONS CORPORATION – 13 41.9%
GUAM WIRELESS TELEPHONE COMPANY, LLC – 3 9.7%

Frequently asked

Which prefixes belong to SAIPAN in area code 670?

31 blocks: 233, 234, 235, 236, 237, 256, 284, 285, 286, 287, 288, 321 and 19 more, all listed in the table above.

Which carriers have numbers in SAIPAN?

PTI PACIFICA INC. (15 blocks), MICRONESIAN TELECOMMUNICATIONS CORPORATION (13 blocks), GUAM WIRELESS TELEPHONE COMPANY, LLC (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SAIPAN a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.