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

RIOPIEDRAS prefixes in area code 787

NANPA records 69 assigned NXX blocks to rate center RIOPIEDRAS in area code 787, 8.9% of the 777 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. 6 holders hold those blocks, the largest being LIBERTY MOBILE PUERTO RICO INC. (35), PUERTO RICO TEL. CO. (21), IP SOLUTIONS, INC. - PR (6). The earliest assignment on record here is 2003-04-30 and the most recent 2003-04-30. 10 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 939 – overlay codes cover the same geography, so a rate center is served by all of them.

69 assigned blocks – 8.9% of 787
6 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
787-200 LIBERTY COMMUNICATIONS OF PUERTO RICO LLC – yes yes
787-249 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-250 PUERTO RICO TEL. CO. – no yes
787-274 PUERTO RICO TEL. CO. – no yes
787-281 PUERTO RICO TEL. CO. – no yes
787-282 PUERTO RICO TEL. CO. – no yes
787-294 PUERTO RICO TEL. CO. – yes yes
787-296 PUERTO RICO TEL. CO. – yes yes
787-302 OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR – no yes
787-306 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-308 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-309 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-332 OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR – no yes
787-350 MR. BEEPER, INC. – no yes
787-351 MR. BEEPER, INC. – no yes
787-352 MR. BEEPER, INC. – no yes
787-353 MR. BEEPER, INC. – no yes
787-360 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-370 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-378 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-379 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-396 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-397 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-398 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-399 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-401 Liberty LIBERTY MOBILE PUERTO RICO INC. – yes yes
787-402 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-403 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-405 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-406 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-407 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-409 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-413 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-440 IP SOLUTIONS, INC. - PR – no yes
787-441 IP SOLUTIONS, INC. - PR – no yes
787-442 IP SOLUTIONS, INC. - PR – no yes
787-443 IP SOLUTIONS, INC. - PR – no yes
787-455 Liberty LIBERTY MOBILE PUERTO RICO INC. – yes yes
787-474 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-501 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-502 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-504 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-505 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-509 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-510 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-552 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-567 Liberty LIBERTY MOBILE PUERTO RICO INC. – yes yes
787-570 IP SOLUTIONS, INC. - PR – no yes
787-571 IP SOLUTIONS, INC. - PR – no yes
787-625 Liberty LIBERTY MOBILE PUERTO RICO INC. 2003-04-30 no yes
787-691 Liberty LIBERTY MOBILE PUERTO RICO INC. – no yes
787-751 PUERTO RICO TEL. CO. – no yes
787-753 PUERTO RICO TEL. CO. – no yes
787-754 PUERTO RICO TEL. CO. – no yes
787-756 PUERTO RICO TEL. CO. – no yes
787-758 PUERTO RICO TEL. CO. – no yes
787-759 PUERTO RICO TEL. CO. – no yes
787-763 PUERTO RICO TEL. CO. – no yes
787-764 PUERTO RICO TEL. CO. – no yes
787-765 PUERTO RICO TEL. CO. – no yes
787-766 PUERTO RICO TEL. CO. – no yes
787-767 PUERTO RICO TEL. CO. – no yes
787-771 PUERTO RICO TEL. CO. – no yes
787-772 PUERTO RICO TEL. CO. – no yes
787-773 PUERTO RICO TEL. CO. – yes yes
787-777 PUERTO RICO TEL. CO. – yes yes
787-918 Liberty LIBERTY MOBILE PUERTO RICO INC. – yes yes
787-925 Liberty LIBERTY MOBILE PUERTO RICO INC. – yes yes
787-999 Liberty LIBERTY MOBILE PUERTO RICO INC. – 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
LIBERTY MOBILE PUERTO RICO INC. Liberty 35 50.7%
PUERTO RICO TEL. CO. – 21 30.4%
IP SOLUTIONS, INC. - PR – 6 8.7%
MR. BEEPER, INC. – 4 5.8%
OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR – 2 2.9%
LIBERTY COMMUNICATIONS OF PUERTO RICO LLC – 1 1.4%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to RIOPIEDRAS in area code 787?

69 blocks: 200, 249, 250, 274, 281, 282, 294, 296, 302, 306, 308, 309 and 57 more, all listed in the table above.

Which carriers have numbers in RIOPIEDRAS?

LIBERTY MOBILE PUERTO RICO INC. (35 blocks), PUERTO RICO TEL. CO. (21 blocks), IP SOLUTIONS, INC. - PR (6 blocks), MR. BEEPER, INC. (4 blocks), OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR (2 blocks), LIBERTY COMMUNICATIONS OF PUERTO RICO LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is RIOPIEDRAS 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.

Other rate centers in 787

All 777 prefixes in 787