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

OVIEDO prefixes in area code 321

NANPA records 5 assigned NXX blocks to rate center OVIEDO in area code 321, 1.0% of the 502 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 PAETEC ITEL, LLC (1), MCI WORLDCOM COMMUNICATIONS, INC. - FL (1), LEVEL 3 COMMUNICATIONS, LLC - FL (1). 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 codes 407, 689 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 1% of 321
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
321-244 Windstream PAETEC ITEL, LLC – yes yes
321-296 MCI WORLDCOM COMMUNICATIONS, INC. - FL – yes yes
321-348 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL – yes yes
321-415 Peerless PEERLESS NETWORK OF FLORIDA, LLC - FL – yes yes
321-765 ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND – 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
PAETEC ITEL, LLC Windstream 1 20%
MCI WORLDCOM COMMUNICATIONS, INC. - FL – 1 20%
LEVEL 3 COMMUNICATIONS, LLC - FL Lumen 1 20%
PEERLESS NETWORK OF FLORIDA, LLC - FL Peerless 1 20%
ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND – 1 20%

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 OVIEDO in area code 321?

5 blocks: 244, 296, 348, 415, 765. The table above gives the holder of each.

Which carriers have numbers in OVIEDO?

PAETEC ITEL, LLC (1 block), MCI WORLDCOM COMMUNICATIONS, INC. - FL (1 block), LEVEL 3 COMMUNICATIONS, LLC - FL (1 block), PEERLESS NETWORK OF FLORIDA, LLC - FL (1 block), ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is OVIEDO 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 321

All 502 prefixes in 321