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

ADA prefixes in area code 616

NANPA records 13 assigned NXX blocks to rate center ADA in area code 616, 2.4% of the 545 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. 7 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (4), MICHIGAN BELL TEL CO (3), ONVOY, LLCV - MI (2). The earliest assignment on record here is 2001-01-10 and the most recent 2021-07-20. 11 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 218, 419, 567, 580 – overlay codes cover the same geography, so a rate center is served by all of them.

13 assigned blocks – 2.4% of 616
7 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
616-216 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2012-12-20 yes yes
616-227 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2014-02-12 yes yes
616-274 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2017-04-13 yes yes
616-314 Onvoy ONVOY, LLCV - MI 2021-07-20 yes yes
616-357 FIRST COMMUNICATIONS, LLC – yes yes
616-425 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI – yes yes
616-469 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
616-676 AT&T MICHIGAN BELL TEL CO – yes yes
616-682 AT&T MICHIGAN BELL TEL CO – yes yes
616-727 Onvoy ONVOY, LLCV - MI 2016-02-12 yes yes
616-787 AT&T MICHIGAN BELL TEL CO – no yes
616-825 INTERACTIVE SERVICES NETWORK, INC. 2001-01-10 no yes
616-920 Bandwidth BANDWIDTH.COM CLEC, LLC - MI 2010-03-09 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 4 30.8%
MICHIGAN BELL TEL CO AT&T 3 23.1%
ONVOY, LLCV - MI Onvoy 2 15.4%
FIRST COMMUNICATIONS, LLC – 1 7.7%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI Verizon 1 7.7%
INTERACTIVE SERVICES NETWORK, INC. – 1 7.7%
BANDWIDTH.COM CLEC, LLC - MI Bandwidth 1 7.7%

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 ADA in area code 616?

13 blocks: 216, 227, 274, 314, 357, 425, 469, 676, 682, 727, 787, 825 and 1 more, all listed in the table above.

Which carriers have numbers in ADA?

NEW CINGULAR WIRELESS PCS, LLC - IL (4 blocks), MICHIGAN BELL TEL CO (3 blocks), ONVOY, LLCV - MI (2 blocks), FIRST COMMUNICATIONS, LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI (1 block), INTERACTIVE SERVICES NETWORK, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ADA 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 616

All 545 prefixes in 616