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

SEVERNA PK prefixes in area code 667

NANPA records 5 assigned NXX blocks to rate center SEVERNA PK in area code 667, 1.1% of the 454 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. 4 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - DC (2), OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (1), ONVOY SPECTRUM, LLC (1). The earliest assignment on record here is 2014-07-08 and the most recent 2026-10-29. 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 codes 410, 443 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 1.1% of 667
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
667-509 T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 2025-05-14 yes yes
667-552 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2026-07-08 yes yes
667-561 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2026-10-29 yes no
667-644 Charter ONVOY SPECTRUM, LLC 2021-04-26 yes yes
667-777 Peerless PEERLESS NETWORK OF MARYLAND, LLC 2014-07-08 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 - DC AT&T 2 40%
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC T-Mobile 1 20%
ONVOY SPECTRUM, LLC Charter 1 20%
PEERLESS NETWORK OF MARYLAND, LLC Peerless 1 20%

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 SEVERNA PK in area code 667?

5 blocks: 509, 552, 561, 644, 777. The table above gives the holder of each.

Which carriers have numbers in SEVERNA PK?

NEW CINGULAR WIRELESS PCS, LLC - DC (2 blocks), OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (1 block), ONVOY SPECTRUM, LLC (1 block), PEERLESS NETWORK OF MARYLAND, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SEVERNA PK 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 667

All 454 prefixes in 667