NANPA NPA-NXX TELECOM REGISTRY // AREA CODE 503

Area Code 503 (Portland & Salem, OR) Carrier & TCPA Lookup.

Real-time NANPA NPA-NXX carrier line type, operating company number (OCN), wireless porting status, and TCPA DNC serial litigator verification for (503) phone numbers in Portland & Salem, OR.

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NANPA Area Code (503) Telemetry Profile

NPA CODE: +1 (503)
PRIMARY MARKET: Portland & Salem, OR
TIMEZONE: PST (UTC-8)
DOMINANT CARRIERS: Qwest/Lumen, Verizon Wireless, Ziply Fiber
TCPA DNC SHIELD: ACTIVE (1 CREDIT / LOOKUP)

Test Area Code 503 via cURL or MCP

curl -s "https://verifygrid.io/v1/verify/telecom?phone=%2B15035550199" \
  -H "Authorization: Bearer vg_test_sandbox"

# Returns E.164, line_type (mobile/voip/landline),
# carrier_name, OCN, tcpa_dnc_listed, and safe_to_autodial

// NANPA INDEXPROGRAMMATIC US AREA CODE VERIFICATION DIRECTORY