DIMONDALE prefixes in area code 517
NANPA records 12 assigned NXX blocks to rate center DIMONDALE in area code 517, 1.9% of the 616 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. 8 holders hold those blocks, the largest being MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI (4), ONVOY, LLCV - MI (2), AT&T ENTERPRISES, LLC (1). The earliest assignment on record here is 2001-11-15 and the most recent 2018-08-22. 12 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 517-235 | AT&T AT&T ENTERPRISES, LLC | 2010-12-07 | yes | yes |
| 517-236 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | – | yes | yes |
| 517-308 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | – | yes | yes |
| 517-345 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 2005-03-16 | yes | yes |
| 517-408 | Comcast COMCAST IP PHONE, LLC | 2007-04-12 | yes | yes |
| 517-550 | Onvoy ONVOY, LLCV - MI | 2018-08-22 | yes | yes |
| 517-600 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 2005-10-17 | yes | yes |
| 517-616 | Onvoy ONVOY, LLCV - MI | 2008-10-28 | yes | yes |
| 517-646 | AT&T MICHIGAN BELL TEL CO | – | yes | yes |
| 517-868 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MI | – | yes | yes |
| 517-912 | ACD TELECOM, INC. - MI | 2001-11-15 | yes | yes |
| 517-966 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 2006-02-09 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | Verizon | 4 | 33.3% |
| ONVOY, LLCV - MI | Onvoy | 2 | 16.7% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 8.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | Verizon | 1 | 8.3% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 8.3% |
| MICHIGAN BELL TEL CO | AT&T | 1 | 8.3% |
| LEVEL 3 COMMUNICATIONS, LLC - MI | Lumen | 1 | 8.3% |
| ACD TELECOM, INC. - MI | – | 1 | 8.3% |
Frequently asked
Which prefixes belong to DIMONDALE in area code 517?
12 blocks: 235, 236, 308, 345, 408, 550, 600, 616, 646, 868, 912, 966. The table above gives the holder of each.
Which carriers have numbers in DIMONDALE?
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI (4 blocks), ONVOY, LLCV - MI (2 blocks), AT&T ENTERPRISES, LLC (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (1 block), COMCAST IP PHONE, LLC (1 block), MICHIGAN BELL TEL CO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is DIMONDALE 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.