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

WINTERPARK prefixes in area code 321

NANPA records 25 assigned NXX blocks to rate center WINTERPARK in area code 321, 5.0% 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. 11 holders hold those blocks, the largest being AERIAL COMMUNICATIONS, INC. (9), PAETEC ITEL, LLC (4), METROPCS NETWORKS, LLC (3). The earliest assignment on record here is 2002-03-27 and the most recent 2015-10-15. 25 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.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
321-203 Lumen CENTURYLINK COMMUNICATIONS, LLC 2012-07-27 yes yes
321-207 Lumen CENTURYLINK OF FLORIDA, INC. (UNITED) – yes yes
321-214 Windstream PAETEC ITEL, LLC – yes yes
321-228 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
321-263 Lumen CENTURYLINK OF FLORIDA, INC. (UNITED) – yes yes
321-274 Windstream PAETEC ITEL, LLC – yes yes
321-277 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
321-279 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
321-280 T-Mobile METROPCS NETWORKS, LLC 2007-03-01 yes yes
321-282 MCI WORLDCOM COMMUNICATIONS, INC. - FL – yes yes
321-295 Comcast COMCAST IP PHONE, LLC 2007-04-10 yes yes
321-303 T-Mobile AERIAL COMMUNICATIONS, INC. 2002-03-27 yes yes
321-304 T-Mobile METROPCS NETWORKS, LLC 2007-04-10 yes yes
321-316 T-Mobile AERIAL COMMUNICATIONS, INC. 2013-12-17 yes yes
321-356 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
321-370 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 2015-10-15 yes yes
321-397 Windstream PAETEC ITEL, LLC – yes yes
321-422 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
321-439 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
321-441 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL – yes yes
321-444 TERRA NOVA TELECOM, INC. - FL 2011-11-03 yes yes
321-460 Lumen LEVEL 3 TELECOM OF FLORIDA, LP - FL – yes yes
321-527 T-Mobile AERIAL COMMUNICATIONS, INC. 2006-09-22 yes yes
321-594 T-Mobile METROPCS NETWORKS, LLC 2006-07-13 yes yes
321-972 Windstream PAETEC ITEL, LLC 2005-12-28 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
AERIAL COMMUNICATIONS, INC. T-Mobile 9 36%
PAETEC ITEL, LLC Windstream 4 16%
METROPCS NETWORKS, LLC T-Mobile 3 12%
CENTURYLINK OF FLORIDA, INC. (UNITED) Lumen 2 8%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 4%
MCI WORLDCOM COMMUNICATIONS, INC. - FL – 1 4%
COMCAST IP PHONE, LLC Comcast 1 4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL Verizon 1 4%
LEVEL 3 COMMUNICATIONS, LLC - FL Lumen 1 4%
TERRA NOVA TELECOM, INC. - FL – 1 4%
LEVEL 3 TELECOM OF FLORIDA, LP - FL Lumen 1 4%

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 WINTERPARK in area code 321?

25 blocks: 203, 207, 214, 228, 263, 274, 277, 279, 280, 282, 295, 303 and 13 more, all listed in the table above.

Which carriers have numbers in WINTERPARK?

AERIAL COMMUNICATIONS, INC. (9 blocks), PAETEC ITEL, LLC (4 blocks), METROPCS NETWORKS, LLC (3 blocks), CENTURYLINK OF FLORIDA, INC. (UNITED) (2 blocks), CENTURYLINK COMMUNICATIONS, LLC (1 block), MCI WORLDCOM COMMUNICATIONS, INC. - FL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WINTERPARK 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