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

TAMPANTH prefixes in area code 813

NANPA records 52 assigned NXX blocks to rate center TAMPANTH in area code 813, 6.6% of the 782 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. 19 holders hold those blocks, the largest being FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA (12), AERIAL COMMUNICATIONS, INC. (6), NEW CINGULAR WIRELESS PCS, LLC - GA (6). The earliest assignment on record here is 2001-12-13 and the most recent 2022-08-02. 42 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 656 – overlay codes cover the same geography, so a rate center is served by all of them.

52 assigned blocks – 6.6% of 813
19 holders of record
42 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
813-235 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – yes yes
813-279 T-Mobile METROPCS, INC. 2011-04-01 yes yes
813-333 Vonage VONAGE AMERICA LLC – yes yes
813-345 AT&T AT&T - LOCAL 2001-12-13 yes yes
813-346 Windstream PAETEC ITEL, LLC 2002-03-13 no yes
813-388 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 2002-10-18 yes yes
813-406 T-Mobile AERIAL COMMUNICATIONS, INC. 2008-04-02 yes yes
813-428 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2008-09-12 yes yes
813-435 Lumen LEVEL 3 TELECOM OF FLORIDA, LP - FL 2002-01-03 yes yes
813-461 T-Mobile AERIAL COMMUNICATIONS, INC. 2017-03-28 yes yes
813-474 YMAX COMMUNICATIONS CORP. - FL 2009-02-19 yes yes
813-482 MCI WORLDCOM COMMUNICATIONS, INC. - FL – yes yes
813-501 MCI WORLDCOM COMMUNICATIONS, INC. - FL 2010-12-13 yes yes
813-522 T-Mobile METROPCS, INC. 2018-09-20 yes yes
813-527 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2006-05-19 yes yes
813-528 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2006-09-18 yes yes
813-536 BHN IP ENABLED SERVICES, LLC 2017-06-08 yes yes
813-553 T-Mobile METROPCS, INC. 2018-12-13 yes yes
813-563 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2014-04-10 yes yes
813-575 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2014-11-26 yes yes
813-576 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2019-06-28 yes yes
813-591 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2016-06-27 yes yes
813-596 Vonage VONAGE AMERICA LLC 2020-08-25 yes yes
813-607 T-Mobile AERIAL COMMUNICATIONS, INC. 2014-11-26 yes yes
813-618 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL – yes yes
813-693 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA 2013-07-03 yes yes
813-723 T-Mobile AERIAL COMMUNICATIONS, INC. 2020-10-23 yes yes
813-733 INVOXIO INCORPORATED 2018-10-25 yes yes
813-738 Telnyx TELNYX LLC 2021-02-02 yes yes
813-751 Windstream PAETEC ITEL, LLC – yes yes
813-755 FRACTEL, LLC 2019-05-20 yes yes
813-790 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2021-05-25 yes yes
813-794 Windstream PAETEC ITEL, LLC – no yes
813-803 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2013-02-15 yes yes
813-809 Onvoy ONVOY, LLC - FL 2020-12-17 yes yes
813-824 HD CARRIER LLC – yes yes
813-825 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2021-07-28 yes yes
813-897 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
813-907 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-909 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – yes yes
813-921 Onvoy ONVOY, LLC - FL 2022-08-02 yes yes
813-929 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-943 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2004-02-27 yes yes
813-948 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – yes yes
813-949 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-953 T-Mobile AERIAL COMMUNICATIONS, INC. 2016-12-08 yes yes
813-973 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-991 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-994 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-995 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – yes yes
813-996 Frontier FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA – no yes
813-997 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL – 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
FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA Frontier 12 23.1%
AERIAL COMMUNICATIONS, INC. T-Mobile 6 11.5%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 6 11.5%
BANDWIDTH.COM CLEC, LLC - FL Bandwidth 4 7.7%
METROPCS, INC. T-Mobile 3 5.8%
PAETEC ITEL, LLC Windstream 3 5.8%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL Verizon 3 5.8%
VONAGE AMERICA LLC Vonage 2 3.8%
MCI WORLDCOM COMMUNICATIONS, INC. - FL – 2 3.8%
ONVOY, LLC - FL Onvoy 2 3.8%
AT&T - LOCAL AT&T 1 1.9%
LEVEL 3 TELECOM OF FLORIDA, LP - FL Lumen 1 1.9%
YMAX COMMUNICATIONS CORP. - FL – 1 1.9%
BHN IP ENABLED SERVICES, LLC – 1 1.9%
LEVEL 3 COMMUNICATIONS, LLC - FL Lumen 1 1.9%
INVOXIO INCORPORATED – 1 1.9%
TELNYX LLC Telnyx 1 1.9%
FRACTEL, LLC – 1 1.9%
HD CARRIER LLC – 1 1.9%

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 TAMPANTH in area code 813?

52 blocks: 235, 279, 333, 345, 346, 388, 406, 428, 435, 461, 474, 482 and 40 more, all listed in the table above.

Which carriers have numbers in TAMPANTH?

FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA (12 blocks), AERIAL COMMUNICATIONS, INC. (6 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (6 blocks), BANDWIDTH.COM CLEC, LLC - FL (4 blocks), METROPCS, INC. (3 blocks), PAETEC ITEL, LLC (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TAMPANTH 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 813

All 782 prefixes in 813