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

MANITOWOC prefixes in area code 920

NANPA records 24 assigned NXX blocks to rate center MANITOWOC in area code 920, 3.1% of the 785 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. 13 holders hold those blocks, the largest being WISCONSIN BELL INC (6), T-MOBILE USA, INC. (3), AMERICAN MESSAGING SERVICES, LLC (2). The earliest assignment on record here is 2001-02-05 and the most recent 2023-03-10. 15 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 274 – overlay codes cover the same geography, so a rate center is served by all of them.

24 assigned blocks – 3.1% of 920
13 holders of record
15 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
920-218 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
920-242 T-Mobile METROPCS, INC. – yes yes
920-320 AT&T WISCONSIN BELL INC – yes yes
920-323 Verizon NEW CELL DBA CELLCOM – no yes
920-374 T-Mobile T-MOBILE USA, INC. – yes yes
920-482 Windstream PAETEC ITEL, LLC – yes yes
920-529 American Messaging AMERICAN MESSAGING SERVICES, LLC 2003-01-13 no yes
920-571 T-Mobile T-MOBILE USA, INC. – yes yes
920-629 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI – no yes
920-645 Lumen LEVEL 3 COMMUNICATIONS, LLC - WI – yes yes
920-652 AT&T WISCONSIN BELL INC – yes yes
920-663 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC WI – yes yes
920-681 T-Mobile T-MOBILE USA, INC. – yes yes
920-682 AT&T WISCONSIN BELL INC – no yes
920-683 AT&T WISCONSIN BELL INC – no yes
920-684 AT&T WISCONSIN BELL INC – no yes
920-686 AT&T WISCONSIN BELL INC – no yes
920-717 Comcast COMCAST IP PHONE, LLC 2014-02-18 yes yes
920-769 Windstream PAETEC ITEL, LLC 2001-02-08 yes yes
920-816 TDS TDS METROCOM, LLC 2023-03-10 yes yes
920-860 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-02-05 yes yes
920-901 UNITED STATES CELLULAR - WI – yes yes
920-905 UNITED STATES CELLULAR - WI – yes yes
920-973 Verizon NEW CELL DBA CELLCOM – 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
WISCONSIN BELL INC AT&T 6 25%
T-MOBILE USA, INC. T-Mobile 3 12.5%
AMERICAN MESSAGING SERVICES, LLC American Messaging 2 8.3%
NEW CELL DBA CELLCOM Verizon 2 8.3%
PAETEC ITEL, LLC Windstream 2 8.3%
UNITED STATES CELLULAR - WI – 2 8.3%
METROPCS, INC. T-Mobile 1 4.2%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI Verizon 1 4.2%
LEVEL 3 COMMUNICATIONS, LLC - WI Lumen 1 4.2%
TELEPORT COMMUNICATIONS AMERICA, LLC WI AT&T 1 4.2%
COMCAST IP PHONE, LLC Comcast 1 4.2%
TDS METROCOM, LLC TDS 1 4.2%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 4.2%

Frequently asked

Which prefixes belong to MANITOWOC in area code 920?

24 blocks: 218, 242, 320, 323, 374, 482, 529, 571, 629, 645, 652, 663 and 12 more, all listed in the table above.

Which carriers have numbers in MANITOWOC?

WISCONSIN BELL INC (6 blocks), T-MOBILE USA, INC. (3 blocks), AMERICAN MESSAGING SERVICES, LLC (2 blocks), NEW CELL DBA CELLCOM (2 blocks), PAETEC ITEL, LLC (2 blocks), UNITED STATES CELLULAR - WI (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MANITOWOC 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 920

All 785 prefixes in 920