Prefix 757-520 — Norfolk Zone 1, VA

NANPA CO code assignment, current as of July 28, 2026.

Area code
757
Prefix (NXX)
520
Rate center
Norfolk Zone 1
State
Virginia
Time zone
Eastern
Code holder
ONVOY, LLC - VA
OCN
138E
Pooled
Yes (thousands-block pooling)
Assigned
2016-02-29
LATA
252

757-520 identifies a block of numbers in Norfolk Zone 1, VA, within the 757 area code. Every US prefix is tied to exactly one rate center; this one is Norfolk Zone 1.

The rate center lies in the Virginia Beach-Chesepeake-Norfolk, VA-NC Metropolitan Statistical Area. The serving LATA is 252. Local time follows the Eastern zone.

Treat the on-screen number as a hint, not evidence — 757-520 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.

NANPA's central-office code records list ONVOY, LLC - VA (OCN 138E) as the code holder, assigned February 29, 2016. Because 757-520 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Neighboring prefixes

Prefixes adjacent to 757-520
PrefixRate centerCode holder
757-517 Franklin LEVEL 3 COMMUNICATIONS, LLC - VA
757-518 Norfolk Zone 2 VERIZON VIRGINIA, INC.
757-519 Norfolk Zone 2 VERIZON VIRGINIA, INC.
757-521 Norfolk Zone 2 VERIZON VIRGINIA, INC.
757-522 Surry METROPCS, INC.
757-523 Norfolk Zone 2 VERIZON VIRGINIA, INC.

FAQ

Where is 757-520 located?

The prefix is assigned to the Norfolk Zone 1 rate center in VA, area code 757. It is part of the Virginia Beach-Chesepeake-Norfolk, VA-NC Metropolitan Statistical Area.

Which company owns 757-520 numbers?

ONVOY, LLC - VA holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.

Is a call from 757-520 safe to answer?

The prefix itself says nothing about the caller. Legitimate Norfolk Zone 1 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.