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559 Area Code — Scam Calls, Location & Who's Calling

Area code 559 serves California in the Pacific time zone, in service since 1998. The FCC has 2,671 unwanted-call complaints against 1,832 different 559 numbers on record. Look up the exact number that called you below.

Most-reported 559 numbers

Ranked by FCC unwanted-call complaints. Click a number for its full report.

559 unwanted-call complaints, last 12 months

Monthly FCC complaint volume against 559 numbers. Spikes usually mark an active robocall campaign cycling through the code.

Carriers operating in 559

Carriers assigned to 559 prefixes that visitors have looked up so far — resolved from official NPA-NXX assignment records.

  • LEVEL 3 COMMUNICATIONS, LLC - CAC · 15 prefixes
  • PACIFIC BELLI · 14 prefixes
  • ONVOY, LLC - CAC · 13 prefixes
  • T-MOBILE USA, INC.Wireless · 8 prefixes
  • LEVEL 3 TELECOM OF CALIFORNIA, LP - CAC · 7 prefixes
  • BANDWIDTH.COM CLEC, LLC - CAC · 7 prefixes
  • NEW CINGULAR WIRELESS PCS, LLCWireless · 5 prefixes
  • CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAWireless · 4 prefixes

About area code 559

Serves
California
Time zone
Pacific
In service since
1998-11-14
Overlay
Yes — 10-digit dialing

Source: NANPA numbering records, refreshed weekly.

Spam calls from 559? What to know

Seeing repeated missed calls from 559 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in California — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.

Area code 559 FAQs

Where is area code 559?

Area code 559 serves California, in the Pacific time zone. It is part of an overlay complex, so multiple area codes serve the same territory and 10-digit dialing is required. It has been in service since 1998.

Why do I keep getting calls from 559 numbers?

Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 559 may not originate from California at all. Look up the full 10-digit number on this site to see its complaint history before calling back.

Are 559 numbers safe to call back?

Area codes themselves are neither safe nor unsafe — 559 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 2,671 unwanted-call complaints against 1,832 distinct 559 numbers in our current data window. Check the specific number's report page before returning a missed call.