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

HALLSVILLE prefixes in area code 573

NANPA records 3 assigned NXX blocks to rate center HALLSVILLE in area code 573, 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. 2 holders hold those blocks, the largest being ONVOY, LLC - MO (2), BRIGHTSPEED OF MISSOURI, LLC (1). 3 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 codes 430, 740, 903 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 573
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
573-296 Onvoy ONVOY, LLC - MO – yes yes
573-696 Brightspeed BRIGHTSPEED OF MISSOURI, LLC – yes yes
573-949 Onvoy ONVOY, LLC - MO – 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
ONVOY, LLC - MO Onvoy 2 66.7%
BRIGHTSPEED OF MISSOURI, LLC Brightspeed 1 33.3%

Frequently asked

Which prefixes belong to HALLSVILLE in area code 573?

3 blocks: 296, 696, 949. The table above gives the holder of each.

Which carriers have numbers in HALLSVILLE?

ONVOY, LLC - MO (2 blocks), BRIGHTSPEED OF MISSOURI, 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 HALLSVILLE 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 573

All 786 prefixes in 573