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

PEARL CITY prefixes in area code 815

NANPA records 3 assigned NXX blocks to rate center PEARL CITY in area code 815, 0.4% of the 786 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 FRONTIER NORTH, INC. - IL (1), ONVOY SPECTRUM, LLC (1), AERO NORTH COMMUNICATIONS, INC. - IL (1). The earliest assignment on record here is 2024-10-01 and the most recent 2024-10-01. 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.4% of 815
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
815-443 Frontier FRONTIER NORTH, INC. - IL – yes yes
815-607 Charter ONVOY SPECTRUM, LLC 2024-10-01 yes yes
815-810 AERO NORTH COMMUNICATIONS, INC. - IL – 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
FRONTIER NORTH, INC. - IL Frontier 1 33.3%
ONVOY SPECTRUM, LLC Charter 1 33.3%
AERO NORTH COMMUNICATIONS, INC. - IL – 1 33.3%

Frequently asked

Which prefixes belong to PEARL CITY in area code 815?

3 blocks: 443, 607, 810. The table above gives the holder of each.

Which carriers have numbers in PEARL CITY?

FRONTIER NORTH, INC. - IL (1 block), ONVOY SPECTRUM, LLC (1 block), AERO NORTH COMMUNICATIONS, INC. - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PEARL CITY 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 815

All 786 prefixes in 815