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

MUNSON prefixes in area code 850

NANPA records 5 assigned NXX blocks to rate center MUNSON in area code 850, 0.6% 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. 5 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - FL (1), ONVOY, LLC - FL (1), AT&T ENTERPRISES, LLC (1). The earliest assignment on record here is 2004-10-27 and the most recent 2021-02-16. 5 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 448 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 850
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
850-312 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2004-10-27 yes yes
850-446 Onvoy ONVOY, LLC - FL 2018-08-29 yes yes
850-783 AT&T AT&T ENTERPRISES, LLC 2011-02-11 yes yes
850-957 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
850-989 Charter ONVOY SPECTRUM, LLC 2021-02-16 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
LEVEL 3 COMMUNICATIONS, LLC - FL Lumen 1 20%
ONVOY, LLC - FL Onvoy 1 20%
AT&T ENTERPRISES, LLC AT&T 1 20%
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 1 20%
ONVOY SPECTRUM, LLC Charter 1 20%

Frequently asked

Which prefixes belong to MUNSON in area code 850?

5 blocks: 312, 446, 783, 957, 989. The table above gives the holder of each.

Which carriers have numbers in MUNSON?

LEVEL 3 COMMUNICATIONS, LLC - FL (1 block), ONVOY, LLC - FL (1 block), AT&T ENTERPRISES, LLC (1 block), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (1 block), ONVOY SPECTRUM, 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 MUNSON 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 850

All 786 prefixes in 850