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

CHAMPAURBN prefixes in area code 447

NANPA records 16 assigned NXX blocks to rate center CHAMPAURBN in area code 447, 7.2% of the 221 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. 15 holders hold those blocks, the largest being NUSO, LLC (2), IP HORIZON LLC (1), STRATUS NETWORKS (1). The earliest assignment on record here is 2021-02-12 and the most recent 2026-09-15. 16 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 217 – overlay codes cover the same geography, so a rate center is served by all of them.

16 assigned blocks – 7.2% of 447
15 holders of record
16 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
447-201 IP HORIZON LLC 2021-03-03 yes yes
447-218 STRATUS NETWORKS 2021-11-18 yes yes
447-220 Dish BOOST SUBSCRIBERCO L.L.C. 2021-12-10 yes yes
447-230 Windstream PAETEC ITEL, LLC 2022-03-04 yes yes
447-236 LEAP TELECOM, LLC 2024-09-19 yes yes
447-245 NUSO, LLC 2023-02-08 yes yes
447-258 CALLWORKS CORPORATION 2023-07-05 yes yes
447-302 NUSO, LLC 2024-11-23 yes yes
447-318 WAVENATION, LLC 2025-07-23 yes yes
447-324 Bandwidth BANDWIDTH.COM CLEC, LLC - IL 2025-07-31 yes yes
447-410 Onvoy ONVOY, LLC 2021-03-17 yes yes
447-446 HD CARRIER LLC 2021-02-12 yes yes
447-725 SKYE TELECOM LLC DBA SKYETEL 2021-09-08 yes yes
447-880 8x8 8X8, INC. 2026-09-15 yes no
447-895 Twilio TWILIO INTERNATIONAL, INC. 2021-11-22 yes yes
447-902 Charter ONVOY SPECTRUM, LLC 2021-08-05 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
NUSO, LLC – 2 12.5%
IP HORIZON LLC – 1 6.2%
STRATUS NETWORKS – 1 6.2%
BOOST SUBSCRIBERCO L.L.C. Dish 1 6.2%
PAETEC ITEL, LLC Windstream 1 6.2%
LEAP TELECOM, LLC – 1 6.2%
CALLWORKS CORPORATION – 1 6.2%
WAVENATION, LLC – 1 6.2%
BANDWIDTH.COM CLEC, LLC - IL Bandwidth 1 6.2%
ONVOY, LLC Onvoy 1 6.2%
HD CARRIER LLC – 1 6.2%
SKYE TELECOM LLC DBA SKYETEL – 1 6.2%
8X8, INC. 8x8 1 6.2%
TWILIO INTERNATIONAL, INC. Twilio 1 6.2%
ONVOY SPECTRUM, LLC Charter 1 6.2%

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 CHAMPAURBN in area code 447?

16 blocks: 201, 218, 220, 230, 236, 245, 258, 302, 318, 324, 410, 446 and 4 more, all listed in the table above.

Which carriers have numbers in CHAMPAURBN?

NUSO, LLC (2 blocks), IP HORIZON LLC (1 block), STRATUS NETWORKS (1 block), BOOST SUBSCRIBERCO L.L.C. (1 block), PAETEC ITEL, LLC (1 block), LEAP TELECOM, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CHAMPAURBN 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 447

All 221 prefixes in 447