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

GRANDMRAIS prefixes in area code 218

NANPA records 6 assigned NXX blocks to rate center GRANDMRAIS in area code 218, 0.8% of the 708 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. 5 holders hold those blocks, the largest being ONVOY, LLC - MN (2), LEVEL 3 COMMUNICATIONS, LLC - MN (1), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN (1). The earliest assignment on record here is 2002-07-29 and the most recent 2012-08-14. 5 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 code 906 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 0.8% of 218
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
218-264 Lumen LEVEL 3 COMMUNICATIONS, LLC - MN 2002-07-29 yes yes
218-370 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN – yes yes
218-387 Lumen QWEST CORPORATION – yes yes
218-388 Lumen CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK – no yes
218-412 Onvoy ONVOY, LLC - MN 2003-01-24 yes yes
218-877 Onvoy ONVOY, LLC - MN 2012-08-14 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
ONVOY, LLC - MN Onvoy 2 33.3%
LEVEL 3 COMMUNICATIONS, LLC - MN Lumen 1 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN Verizon 1 16.7%
QWEST CORPORATION Lumen 1 16.7%
CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK Lumen 1 16.7%

Frequently asked

Which prefixes belong to GRANDMRAIS in area code 218?

6 blocks: 264, 370, 387, 388, 412, 877. The table above gives the holder of each.

Which carriers have numbers in GRANDMRAIS?

ONVOY, LLC - MN (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - MN (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN (1 block), QWEST CORPORATION (1 block), CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GRANDMRAIS 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 218

All 708 prefixes in 218