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

NEWBERG prefixes in area code 503

NANPA records 7 assigned NXX blocks to rate center NEWBERG in area code 503, 0.9% of the 784 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. 5 holders hold those blocks, the largest being ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER (3), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (1), LEVEL 3 COMMUNICATIONS, LLC - OR (1). 4 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 971 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 503
5 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
503-476 Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM – yes yes
503-487 Lumen LEVEL 3 COMMUNICATIONS, LLC - OR – yes yes
503-537 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – yes yes
503-538 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – no yes
503-550 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
503-554 Ziply Fiber ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER – no yes
503-899 Lumen LEVEL 3 TELECOM OF OREGON, LLC - OR – 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
ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER Ziply Fiber 3 42.9%
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM Allstream 1 14.3%
LEVEL 3 COMMUNICATIONS, LLC - OR Lumen 1 14.3%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 14.3%
LEVEL 3 TELECOM OF OREGON, LLC - OR Lumen 1 14.3%

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 NEWBERG in area code 503?

7 blocks: 476, 487, 537, 538, 550, 554, 899. The table above gives the holder of each.

Which carriers have numbers in NEWBERG?

ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER (3 blocks), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (1 block), LEVEL 3 COMMUNICATIONS, LLC - OR (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), LEVEL 3 TELECOM OF OREGON, LLC - OR (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NEWBERG 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 503

All 784 prefixes in 503