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

DUTCH JOHN prefixes in area code 435

NANPA records 3 assigned NXX blocks to rate center DUTCH JOHN in area code 435, 0.6% 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. 3 holders hold those blocks, the largest being UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS (1), UNION TELEPHONE COMPANY (1), UNION TEL. CO. (1). The earliest assignment on record here is 2026-09-10 and the most recent 2026-09-10. 1 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.6% of 435
3 holders of record
1 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
435-370 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 2026-09-10 yes no
435-880 UNION TELEPHONE COMPANY – no yes
435-885 UNION TEL. CO. – 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
UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS – 1 33.3%
UNION TELEPHONE COMPANY – 1 33.3%
UNION TEL. CO. – 1 33.3%

Frequently asked

Which prefixes belong to DUTCH JOHN in area code 435?

3 blocks: 370, 880, 885. The table above gives the holder of each.

Which carriers have numbers in DUTCH JOHN?

UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS (1 block), UNION TELEPHONE COMPANY (1 block), UNION TEL. CO. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DUTCH JOHN 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