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

PARK CITY prefixes in area code 435

NANPA records 32 assigned NXX blocks to rate center PARK CITY in area code 435, 6.4% of the 501 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 QWEST CORPORATION (7), T-MOBILE USA, INC. (5), LEVEL 3 COMMUNICATIONS, LLC - UT (3). The earliest assignment on record here is 2001-06-07 and the most recent 2024-10-17. 23 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 270 – overlay codes cover the same geography, so a rate center is served by all of them.

32 assigned blocks – 6.4% of 435
13 holders of record
23 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
435-200 Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM – yes yes
435-214 Lumen LEVEL 3 COMMUNICATIONS, LLC - UT – yes yes
435-252 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2003-03-11 yes yes
435-333 ALL WEST/UTAH, INC. 2002-01-04 no yes
435-346 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 2024-10-17 yes yes
435-487 XO UTAH, INC. – no yes
435-513 T-Mobile T-MOBILE USA, INC. – yes yes
435-565 Lumen LEVEL 3 COMMUNICATIONS, LLC - UT 2002-09-18 yes yes
435-571 Lumen LEVEL 3 COMMUNICATIONS, LLC - UT 2001-10-23 yes yes
435-575 FIRSTDIGITAL TELECOM, LLC - UT 2002-03-07 no yes
435-602 T-Mobile T-MOBILE USA, INC. – yes yes
435-604 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - UT – yes yes
435-608 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – no yes
435-615 Lumen QWEST CORPORATION – no yes
435-631 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-06-07 yes yes
435-640 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT – no yes
435-645 Lumen QWEST CORPORATION – no yes
435-647 Lumen QWEST CORPORATION – yes yes
435-649 Lumen QWEST CORPORATION – no yes
435-655 Lumen QWEST CORPORATION – yes yes
435-658 Lumen QWEST CORPORATION – no yes
435-659 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT – yes yes
435-666 FRACTEL, LLC 2019-01-24 yes yes
435-699 FRACTEL, LLC 2021-08-12 yes yes
435-714 T-Mobile T-MOBILE USA, INC. – yes yes
435-729 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
435-731 T-Mobile T-MOBILE USA, INC. – yes yes
435-776 Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM – yes yes
435-800 Onvoy ONVOY, LLC - UT 2017-08-31 yes yes
435-901 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
435-940 Lumen QWEST CORPORATION – yes yes
435-962 T-Mobile T-MOBILE USA, INC. – 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
QWEST CORPORATION Lumen 7 21.9%
T-MOBILE USA, INC. T-Mobile 5 15.6%
LEVEL 3 COMMUNICATIONS, LLC - UT Lumen 3 9.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT Verizon 3 9.4%
NEW CINGULAR WIRELESS PCS, LLC AT&T 3 9.4%
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM Allstream 2 6.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 2 6.2%
FRACTEL, LLC – 2 6.2%
ALL WEST/UTAH, INC. – 1 3.1%
XO UTAH, INC. – 1 3.1%
FIRSTDIGITAL TELECOM, LLC - UT – 1 3.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - UT AT&T 1 3.1%
ONVOY, LLC - UT Onvoy 1 3.1%

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 PARK CITY in area code 435?

32 blocks: 200, 214, 252, 333, 346, 487, 513, 565, 571, 575, 602, 604 and 20 more, all listed in the table above.

Which carriers have numbers in PARK CITY?

QWEST CORPORATION (7 blocks), T-MOBILE USA, INC. (5 blocks), LEVEL 3 COMMUNICATIONS, LLC - UT (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PARK CITY 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 435

All 501 prefixes in 435