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

GUMBORO prefixes in area code 302

NANPA records 5 assigned NXX blocks to rate center GUMBORO in area code 302, 0.8% of the 656 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 PAETEC ITEL, LLC (2), VERIZON DELAWARE, INC. (1), ONVOY, LLC - DE (1). 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.8% of 302
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
302-238 Verizon VERIZON DELAWARE, INC. – yes yes
302-303 Onvoy ONVOY, LLC - DE – no yes
302-481 Windstream PAETEC ITEL, LLC – yes yes
302-578 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - PA – yes yes
302-804 Windstream PAETEC ITEL, LLC – 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
PAETEC ITEL, LLC Windstream 2 40%
VERIZON DELAWARE, INC. Verizon 1 20%
ONVOY, LLC - DE Onvoy 1 20%
TELEPORT COMMUNICATIONS AMERICA, LLC - PA AT&T 1 20%

Frequently asked

Which prefixes belong to GUMBORO in area code 302?

5 blocks: 238, 303, 481, 578, 804. The table above gives the holder of each.

Which carriers have numbers in GUMBORO?

PAETEC ITEL, LLC (2 blocks), VERIZON DELAWARE, INC. (1 block), ONVOY, LLC - DE (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - PA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GUMBORO 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 302

All 656 prefixes in 302