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

HINSDALE prefixes in area code 708

NANPA records 16 assigned NXX blocks to rate center HINSDALE in area code 708, 2.0% 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. 1 holder holds those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (16). 6 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 312, 331, 406, 413 – overlay codes cover the same geography, so a rate center is served by all of them.

16 assigned blocks – 2% of 708
1 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
708-207 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
708-214 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-256 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-280 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-285 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
708-408 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-519 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
708-528 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-601 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-642 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-703 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
708-819 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
708-822 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-828 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
708-908 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
708-912 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no 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.

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 HINSDALE in area code 708?

16 blocks: 207, 214, 256, 280, 285, 408, 519, 528, 601, 642, 703, 819 and 4 more, all listed in the table above.

Which carriers have numbers in HINSDALE?

NEW CINGULAR WIRELESS PCS, LLC - IL (16 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HINSDALE 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 708

All 784 prefixes in 708