NANPA NPA-NXX TELECOM REGISTRY // AREA CODE 737

Area Code 737 (Austin Metro Overlay, TX) 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 (737) phone numbers in Austin Metro Overlay, TX.

Run in Live Workbench View Credit Tiers ($49/mo)

NANPA Area Code (737) Telemetry Profile

NPA CODE: +1 (737)
PRIMARY MARKET: Austin Metro Overlay, TX
TIMEZONE: CST (UTC-6)
DOMINANT CARRIERS: AT&T Mobility, T-Mobile USA, Verizon Wireless
TCPA DNC SHIELD: ACTIVE (1 CREDIT / LOOKUP)

Test Area Code 737 via cURL or MCP

curl -s "https://www.verifygrid.io/v1/verify/telecom?phone=%2B17375550199" \
  -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