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

ORLANDO prefixes in area code 321

NANPA records 71 assigned NXX blocks to rate center ORLANDO in area code 321, 14.1% 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. 16 holders hold those blocks, the largest being OMNIPOINT MIAMI E LICENSE, LLC (30), LEVEL 3 COMMUNICATIONS, LLC - FL (5), MCI WORLDCOM COMMUNICATIONS, INC. - FL (5). The earliest assignment on record here is 2001-01-16 and the most recent 2019-12-17. 61 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, 580, 689 – overlay codes cover the same geography, so a rate center is served by all of them.

71 assigned blocks – 14.1% of 321
16 holders of record
61 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
321-200 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2010-10-26 yes yes
321-201 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2011-11-28 yes yes
321-202 Lumen LEVEL 3 TELECOM OF FLORIDA, LP - FL 2004-07-07 yes yes
321-204 Onvoy ONVOY, LLC - FL 2015-11-18 yes yes
321-206 Windstream PAETEC ITEL, LLC – no yes
321-209 Peerless PEERLESS NETWORK OF FLORIDA, LLC - FL 2012-06-01 yes yes
321-217 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-229 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-230 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – no yes
321-231 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-234 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL – yes yes
321-235 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
321-236 AT&T AT&T ENTERPRISES, LLC 2011-07-19 yes yes
321-239 Lumen LEVEL 3 TELECOM OF FLORIDA, LP - FL – yes yes
321-240 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-245 AT&T AT&T ENTERPRISES, LLC 2011-08-04 yes yes
321-246 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL – no yes
321-247 AT&T AT&T ENTERPRISES, LLC 2010-04-21 yes yes
321-251 MCI WORLDCOM COMMUNICATIONS, INC. - FL – yes yes
321-270 Comcast COMCAST IP PHONE, LLC 2011-09-23 yes yes
321-276 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – no yes
321-278 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-281 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
321-287 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-293 MCI WORLDCOM COMMUNICATIONS, INC. - FL 2004-03-19 yes yes
321-297 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-299 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-300 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2010-10-22 yes yes
321-310 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2015-01-15 yes yes
321-314 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2014-08-26 yes yes
321-315 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2014-08-26 yes yes
321-318 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2014-11-19 yes yes
321-319 Windstream PAETEC ITEL, LLC – yes yes
321-320 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 2014-10-15 yes yes
321-330 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2014-11-19 yes yes
321-331 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2002-01-17 yes yes
321-332 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2005-04-04 yes yes
321-340 T-Mobile METROPCS NETWORKS, LLC 2019-12-17 yes yes
321-347 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2015-11-04 yes yes
321-352 AT&T AT&T ENTERPRISES, LLC 2008-10-20 yes yes
321-354 MCI WORLDCOM COMMUNICATIONS, INC. - FL – yes yes
321-388 AT&T AT&T - LOCAL – yes yes
321-400 MCI WORLDCOM COMMUNICATIONS, INC. - FL 2010-10-21 yes yes
321-418 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2010-06-08 yes yes
321-424 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2013-11-21 yes yes
321-430 T-Mobile METROPCS NETWORKS, LLC 2014-12-04 yes yes
321-436 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-438 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-440 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2015-01-15 yes yes
321-445 MCI WORLDCOM COMMUNICATIONS, INC. - FL 2005-12-29 yes yes
321-465 Onvoy ONVOY, LLC - FL 2015-08-19 yes yes
321-500 Windstream PAETEC ITEL, LLC 2010-02-09 yes yes
321-512 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2015-03-27 yes yes
321-558 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2005-04-18 yes yes
321-662 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-663 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-666 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
321-689 T-Mobile METROPCS NETWORKS, LLC 2001-03-12 yes yes
321-695 T-Mobile METROPCS NETWORKS, LLC 2001-01-19 yes yes
321-710 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2010-04-23 yes yes
321-732 Onvoy ONVOY, LLC - FL 2013-02-01 yes yes
321-754 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2001-03-10 yes yes
321-800 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2010-11-24 yes yes
321-841 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
321-842 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 2003-02-21 yes yes
321-843 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
321-888 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
321-945 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2001-01-16 no yes
321-946 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2001-01-16 no yes
321-947 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2001-01-16 no yes
321-948 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2001-01-16 no 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
OMNIPOINT MIAMI E LICENSE, LLC T-Mobile 30 42.3%
LEVEL 3 COMMUNICATIONS, LLC - FL Lumen 5 7%
MCI WORLDCOM COMMUNICATIONS, INC. - FL – 5 7%
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 4 5.6%
AT&T ENTERPRISES, LLC AT&T 4 5.6%
METROPCS NETWORKS, LLC T-Mobile 4 5.6%
ONVOY, LLC - FL Onvoy 3 4.2%
PAETEC ITEL, LLC Windstream 3 4.2%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 3 4.2%
BANDWIDTH.COM CLEC, LLC - FL Bandwidth 2 2.8%
LEVEL 3 TELECOM OF FLORIDA, LP - FL Lumen 2 2.8%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL Verizon 2 2.8%
PEERLESS NETWORK OF FLORIDA, LLC - FL Peerless 1 1.4%
COMCAST IP PHONE, LLC Comcast 1 1.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 1.4%
AT&T - LOCAL AT&T 1 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 ORLANDO in area code 321?

71 blocks: 200, 201, 202, 204, 206, 209, 217, 229, 230, 231, 234, 235 and 59 more, all listed in the table above.

Which carriers have numbers in ORLANDO?

OMNIPOINT MIAMI E LICENSE, LLC (30 blocks), LEVEL 3 COMMUNICATIONS, LLC - FL (5 blocks), MCI WORLDCOM COMMUNICATIONS, INC. - FL (5 blocks), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (4 blocks), AT&T ENTERPRISES, LLC (4 blocks), METROPCS NETWORKS, LLC (4 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ORLANDO 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