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

HAMLER prefixes in area code 419

NANPA records 3 assigned NXX blocks to rate center HAMLER in area code 419, 0.4% of the 783 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 BRIGHTSPEED OF NORTHWEST OHIO, INC. (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1), QUALSTAR COMMUNICATIONS, INC. - OH (1). The earliest assignment on record here is 2001-08-21 and the most recent 2001-08-21. 3 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 419
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
419-274 Brightspeed BRIGHTSPEED OF NORTHWEST OHIO, INC. – yes yes
419-391 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
419-713 QUALSTAR COMMUNICATIONS, INC. - OH 2001-08-21 yes 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
BRIGHTSPEED OF NORTHWEST OHIO, INC. Brightspeed 1 33.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 33.3%
QUALSTAR COMMUNICATIONS, INC. - OH – 1 33.3%

Frequently asked

Which prefixes belong to HAMLER in area code 419?

3 blocks: 274, 391, 713. The table above gives the holder of each.

Which carriers have numbers in HAMLER?

BRIGHTSPEED OF NORTHWEST OHIO, INC. (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), QUALSTAR COMMUNICATIONS, INC. - OH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HAMLER 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 419

All 783 prefixes in 419