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

SYLVANIA prefixes in area code 567

NANPA records 4 assigned NXX blocks to rate center SYLVANIA in area code 567, 1.0% of the 421 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 HD CARRIER LLC (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1), AMERICAN BROADBAND AND TELECOMMS COMPANY - OH (1). The earliest assignment on record here is 2005-12-08 and the most recent 2021-06-24. 4 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 419, 912 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 1% of 567
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
567-358 HD CARRIER LLC 2021-06-24 yes yes
567-408 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-12-02 yes yes
567-455 AMERICAN BROADBAND AND TELECOMMS COMPANY - OH 2005-12-08 yes yes
567-833 FRACTEL, LLC 2020-02-14 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
HD CARRIER LLC – 1 25%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 25%
AMERICAN BROADBAND AND TELECOMMS COMPANY - OH – 1 25%
FRACTEL, LLC – 1 25%

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 SYLVANIA in area code 567?

4 blocks: 358, 408, 455, 833. The table above gives the holder of each.

Which carriers have numbers in SYLVANIA?

HD CARRIER LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), AMERICAN BROADBAND AND TELECOMMS COMPANY - OH (1 block), FRACTEL, 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 SYLVANIA 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 567

All 421 prefixes in 567