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

SPRINGFLD prefixes in area code 447

NANPA records 18 assigned NXX blocks to rate center SPRINGFLD in area code 447, 8.1% 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 TELEPORT COMMUNICATIONS AMERICA, LLC - IL (4), IP HORIZON LLC (1), NUSO, LLC (1). The earliest assignment on record here is 2021-02-12 and the most recent 2026-03-27. 18 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 codes 208, 217, 225, 326 – overlay codes cover the same geography, so a rate center is served by all of them.

18 assigned blocks – 8.1% of 447
15 holders of record
18 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
447-202 IP HORIZON LLC 2021-03-03 yes yes
447-209 NUSO, LLC 2024-11-23 yes yes
447-226 Dish BOOST SUBSCRIBERCO L.L.C. 2021-12-15 yes yes
447-239 Windstream PAETEC ITEL, LLC 2022-08-23 yes yes
447-283 CALLWORKS CORPORATION 2023-12-18 yes yes
447-299 LEAP TELECOM, LLC 2024-09-19 yes yes
447-310 Bandwidth BANDWIDTH.COM CLEC, LLC - IL 2025-05-12 yes yes
447-319 WAVENATION, LLC 2025-07-23 yes yes
447-417 Twilio TWILIO INTERNATIONAL, INC. 2022-02-14 yes yes
447-438 AHOI LLC 2026-03-27 yes yes
447-448 HD CARRIER LLC 2021-02-12 yes yes
447-715 SKYE TELECOM LLC DBA SKYETEL 2021-09-08 yes yes
447-743 TON80 COMMUNICATIONS, LLC 2021-05-28 yes yes
447-784 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL 2021-06-22 yes yes
447-785 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL 2021-06-22 yes yes
447-787 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL 2021-04-02 yes yes
447-788 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL 2021-04-02 yes yes
447-910 Onvoy ONVOY, LLC 2021-03-18 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
TELEPORT COMMUNICATIONS AMERICA, LLC - IL AT&T 4 22.2%
IP HORIZON LLC – 1 5.6%
NUSO, LLC – 1 5.6%
BOOST SUBSCRIBERCO L.L.C. Dish 1 5.6%
PAETEC ITEL, LLC Windstream 1 5.6%
CALLWORKS CORPORATION – 1 5.6%
LEAP TELECOM, LLC – 1 5.6%
BANDWIDTH.COM CLEC, LLC - IL Bandwidth 1 5.6%
WAVENATION, LLC – 1 5.6%
TWILIO INTERNATIONAL, INC. Twilio 1 5.6%
AHOI LLC – 1 5.6%
HD CARRIER LLC – 1 5.6%
SKYE TELECOM LLC DBA SKYETEL – 1 5.6%
TON80 COMMUNICATIONS, LLC – 1 5.6%
ONVOY, LLC Onvoy 1 5.6%

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 SPRINGFLD in area code 447?

18 blocks: 202, 209, 226, 239, 283, 299, 310, 319, 417, 438, 448, 715 and 6 more, all listed in the table above.

Which carriers have numbers in SPRINGFLD?

TELEPORT COMMUNICATIONS AMERICA, LLC - IL (4 blocks), IP HORIZON LLC (1 block), NUSO, LLC (1 block), BOOST SUBSCRIBERCO L.L.C. (1 block), PAETEC ITEL, LLC (1 block), CALLWORKS CORPORATION (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SPRINGFLD 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