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

WALCOTT prefixes in area code 563

NANPA records 4 assigned NXX blocks to rate center WALCOTT in area code 563, 1.0% of the 388 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 ONVOY, LLC - IA (2), QWEST CORPORATION (1), BANDWIDTH.COM CLEC, LLC - IA (1). The earliest assignment on record here is 2005-05-03 and the most recent 2017-09-29. 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 701 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 1% of 563
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
563-284 Lumen QWEST CORPORATION – yes yes
563-447 Bandwidth BANDWIDTH.COM CLEC, LLC - IA 2006-12-30 yes yes
563-657 Onvoy ONVOY, LLC - IA 2005-05-03 yes yes
563-666 Onvoy ONVOY, LLC - IA 2017-09-29 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
ONVOY, LLC - IA Onvoy 2 50%
QWEST CORPORATION Lumen 1 25%
BANDWIDTH.COM CLEC, LLC - IA Bandwidth 1 25%

Frequently asked

Which prefixes belong to WALCOTT in area code 563?

4 blocks: 284, 447, 657, 666. The table above gives the holder of each.

Which carriers have numbers in WALCOTT?

ONVOY, LLC - IA (2 blocks), QWEST CORPORATION (1 block), BANDWIDTH.COM CLEC, LLC - IA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WALCOTT 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 563

All 388 prefixes in 563