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

STURGEONBY prefixes in area code 920

NANPA records 12 assigned NXX blocks to rate center STURGEONBY in area code 920, 1.5% 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. 9 holders hold those blocks, the largest being T-MOBILE USA, INC. (2), NEW CELL DBA CELLCOM (2), WISCONSIN BELL INC (2). The earliest assignment on record here is 2001-08-02 and the most recent 2005-12-03. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

12 assigned blocks – 1.5% of 920
9 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
920-256 T-Mobile T-MOBILE USA, INC. 2001-08-02 yes yes
920-333 T-Mobile METROPCS, INC. 2002-11-20 yes yes
920-473 Lumen LEVEL 3 COMMUNICATIONS, LLC - WI 2002-05-13 yes yes
920-493 Verizon NEW CELL DBA CELLCOM – no yes
920-495 Verizon NEW CELL DBA CELLCOM – no yes
920-559 UNITED STATES CELLULAR - WI – yes yes
920-603 T-Mobile T-MOBILE USA, INC. 2005-12-03 yes yes
920-695 Onvoy ONVOY, LLC - WI 2003-06-30 yes yes
920-724 NET LEC, INC. – yes yes
920-743 AT&T WISCONSIN BELL INC – no yes
920-746 AT&T WISCONSIN BELL INC – no yes
920-818 Charter CHARTER IP ENABLED SERVICES, LLC 2005-10-11 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
T-MOBILE USA, INC. T-Mobile 2 16.7%
NEW CELL DBA CELLCOM Verizon 2 16.7%
WISCONSIN BELL INC AT&T 2 16.7%
METROPCS, INC. T-Mobile 1 8.3%
LEVEL 3 COMMUNICATIONS, LLC - WI Lumen 1 8.3%
UNITED STATES CELLULAR - WI – 1 8.3%
ONVOY, LLC - WI Onvoy 1 8.3%
NET LEC, INC. – 1 8.3%
CHARTER IP ENABLED SERVICES, LLC Charter 1 8.3%

Frequently asked

Which prefixes belong to STURGEONBY in area code 920?

12 blocks: 256, 333, 473, 493, 495, 559, 603, 695, 724, 743, 746, 818. The table above gives the holder of each.

Which carriers have numbers in STURGEONBY?

T-MOBILE USA, INC. (2 blocks), NEW CELL DBA CELLCOM (2 blocks), WISCONSIN BELL INC (2 blocks), METROPCS, INC. (1 block), LEVEL 3 COMMUNICATIONS, LLC - WI (1 block), UNITED STATES CELLULAR - WI (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is STURGEONBY 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