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

SPRINGFLD prefixes in area code 217

NANPA records 91 assigned NXX blocks to rate center SPRINGFLD in area code 217, 11.6% of the 786 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. 21 holders hold those blocks, the largest being ILLINOIS BELL TEL CO (39), NEW CINGULAR WIRELESS PCS, LLC - IL (13), T-MOBILE USA, INC. (7). The earliest assignment on record here is 2001-03-12 and the most recent 2021-01-15. 43 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, 225, 326, 413 – overlay codes cover the same geography, so a rate center is served by all of them.

91 assigned blocks – 11.6% of 217
21 holders of record
43 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
217-206 AT&T ILLINOIS BELL TEL CO – yes yes
217-210 Peerless PEERLESS NETWORK OF ILLINOIS, LLC - IL 2011-06-14 yes yes
217-220 T-Mobile T-MOBILE USA, INC. – yes yes
217-241 Windstream PAETEC ITEL, LLC – no yes
217-252 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
217-263 AT&T ILLINOIS BELL TEL CO – no yes
217-280 T-Mobile T-MOBILE USA, INC. – yes yes
217-299 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – no yes
217-303 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
217-306 T-Mobile T-MOBILE USA, INC. – yes yes
217-321 Windstream PAETEC ITEL, LLC – no yes
217-331 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IL – yes yes
217-341 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-361 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
217-381 AT&T ILLINOIS BELL TEL CO – yes yes
217-391 Windstream PAETEC ITEL, LLC – no yes
217-400 NORTH COUNTY COMMUNICATION CORPORATION - CA 2002-02-14 no yes
217-414 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-415 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-416 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-441 Onvoy ONVOY, LLC 2013-01-09 yes yes
217-467 AT&T ILLINOIS BELL TEL CO – no yes
217-470 AT&T ILLINOIS BELL TEL CO – no yes
217-481 T-Mobile T-MOBILE USA, INC. – yes yes
217-492 AT&T ILLINOIS BELL TEL CO – yes yes
217-494 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – no yes
217-502 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-03-12 yes yes
217-503 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2010-07-27 yes yes
217-522 AT&T ILLINOIS BELL TEL CO – no yes
217-523 AT&T ILLINOIS BELL TEL CO – no yes
217-524 AT&T ILLINOIS BELL TEL CO – no yes
217-525 AT&T ILLINOIS BELL TEL CO – no yes
217-527 AT&T ILLINOIS BELL TEL CO – no yes
217-528 AT&T ILLINOIS BELL TEL CO – no yes
217-529 AT&T ILLINOIS BELL TEL CO – no yes
217-535 AT&T ILLINOIS BELL TEL CO – yes yes
217-541 AT&T ILLINOIS BELL TEL CO – yes yes
217-544 AT&T ILLINOIS BELL TEL CO – no yes
217-545 AT&T ILLINOIS BELL TEL CO – no yes
217-546 AT&T ILLINOIS BELL TEL CO – no yes
217-547 AT&T ILLINOIS BELL TEL CO – no yes
217-553 T-Mobile T-MOBILE USA, INC. – yes yes
217-557 AT&T ILLINOIS BELL TEL CO – no yes
217-558 AT&T ILLINOIS BELL TEL CO – no yes
217-572 AT&T AT&T ENTERPRISES, LLC 2005-04-18 yes yes
217-585 AT&T ILLINOIS BELL TEL CO – no yes
217-588 AT&T ILLINOIS BELL TEL CO – yes yes
217-606 Vonage VONAGE AMERICA LLC 2018-06-11 yes yes
217-610 NUSO, LLC 2013-03-14 yes yes
217-622 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – no yes
217-638 T-Mobile T-MOBILE USA, INC. – yes yes
217-652 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-670 Comcast COMCAST IP PHONE, LLC 2007-08-08 yes yes
217-679 Comcast COMCAST IP PHONE, LLC 2006-06-23 yes yes
217-685 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – yes yes
217-691 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-698 AT&T ILLINOIS BELL TEL CO – no yes
217-717 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL 2001-09-18 yes yes
217-718 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL 2002-05-07 yes yes
217-720 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – no yes
217-725 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – no yes
217-726 AT&T ILLINOIS BELL TEL CO – no yes
217-741 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-744 AT&T ILLINOIS BELL TEL CO – no yes
217-747 AT&T ILLINOIS BELL TEL CO – yes yes
217-753 AT&T ILLINOIS BELL TEL CO – no yes
217-757 AT&T ILLINOIS BELL TEL CO – yes yes
217-761 AT&T ILLINOIS BELL TEL CO – yes yes
217-782 AT&T ILLINOIS BELL TEL CO – no yes
217-785 AT&T ILLINOIS BELL TEL CO – no yes
217-786 AT&T ILLINOIS BELL TEL CO – yes yes
217-787 AT&T ILLINOIS BELL TEL CO – no yes
217-788 AT&T ILLINOIS BELL TEL CO – no yes
217-789 AT&T ILLINOIS BELL TEL CO – no yes
217-793 AT&T ILLINOIS BELL TEL CO – no yes
217-801 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 2003-06-25 yes yes
217-814 AT&T ILLINOIS BELL TEL CO – yes yes
217-816 T-Mobile T-MOBILE USA, INC. 2001-04-04 yes yes
217-836 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL – no yes
217-843 COMMIO, LLC – yes yes
217-862 AT&T ILLINOIS BELL TEL CO – yes yes
217-891 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-899 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-900 Charter ONVOY SPECTRUM, LLC 2019-09-24 yes yes
217-931 Onvoy ONVOY, LLC 2009-04-02 yes yes
217-953 Onvoy ONVOY, LLC – yes yes
217-960 Onvoy ONVOY, LLC 2008-12-15 yes yes
217-970 Comcast COMCAST IP PHONE, LLC – yes yes
217-971 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
217-986 CSC WIRELESS, LLC 2021-01-15 yes yes
217-993 EXIANT COMMUNICATIONS LLC – 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
ILLINOIS BELL TEL CO AT&T 39 42.9%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 13 14.3%
T-MOBILE USA, INC. T-Mobile 7 7.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL Verizon 7 7.7%
ONVOY, LLC Onvoy 4 4.4%
PAETEC ITEL, LLC Windstream 3 3.3%
COMCAST IP PHONE, LLC Comcast 3 3.3%
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 2 2.2%
PEERLESS NETWORK OF ILLINOIS, LLC - IL Peerless 1 1.1%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 1.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - IL AT&T 1 1.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 1.1%
NORTH COUNTY COMMUNICATION CORPORATION - CA – 1 1.1%
AT&T ENTERPRISES, LLC AT&T 1 1.1%
VONAGE AMERICA LLC Vonage 1 1.1%
NUSO, LLC – 1 1.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL Verizon 1 1.1%
COMMIO, LLC – 1 1.1%
ONVOY SPECTRUM, LLC Charter 1 1.1%
CSC WIRELESS, LLC – 1 1.1%
EXIANT COMMUNICATIONS LLC – 1 1.1%

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 217?

91 blocks: 206, 210, 220, 241, 252, 263, 280, 299, 303, 306, 321, 331 and 79 more, all listed in the table above.

Which carriers have numbers in SPRINGFLD?

ILLINOIS BELL TEL CO (39 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (13 blocks), T-MOBILE USA, INC. (7 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (7 blocks), ONVOY, LLC (4 blocks), PAETEC ITEL, LLC (3 blocks). 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 217

All 786 prefixes in 217