Area code 623 — Glendale, Arizona

Where is area code 623?

Area code 623 is in Glendale, Arizona, covering Glendale and surrounding communities in Arizona. All 623 numbers are on Mountain Time.

Is area code 623 a scam?

No. Area code 623 is a legitimate area code serving Glendale since 1999. Scammers spoof caller ID to display 623 numbers, which is why complaints exist against a code that is itself genuine.

Neighbour spoofing is the reason a local-looking number is not a guarantee. A caller anywhere in the world can display a 623 number, and the number they display may belong to a real business in Glendale that has nothing to do with the call.

• ·Area code 623 had 455 different numbers reported for spam calls in the 30 days to 28 July 2026.
• ·Area code 623 ranks 151st of 331 US geographic area codes by spam complaint volume.
• ·Of the 510 complaints about area code 623 in the 30 days to 28 July 2026, 70% were reported as a recorded message or robocall.
• ·The most reported subject on area code 623 is medical & prescriptions, appearing in 9% of its complaints in the 30 days to 28 July 2026.

What these calls were about

Each figure is that subject’s share of every 623 complaint in the 30 days to 28 July 2026, as categorised by the consumer who reported it.

Businesses can prevent their own numbers from being mistaken for calls like these.

Why am I getting text messages from area code 623?

Texts from 623 numbers follow the same pattern as calls — mostly local businesses and services. Treat any text asking for payment or credentials as suspect regardless of the code.

The common patterns are a wrong-number opener that turns into conversation, an unsolicited job offer, and a crypto or investment tip. Do not reply, do not follow the link, and forward the message to 7726 (SPAM) to report it to your carrier.

Who works in the Glendale area?

Area code 623 covers the West Valley of the Phoenix metro, with Glendale at its center. The local economy runs on sports and entertainment, logistics, and defense. State Farm Stadium and the Desert Diamond Arena bring event traffic that feeds hotels, restaurants, and retail across Glendale, and Luke Air Force Base to the west supports a steady population of military personnel, contractors, and their families. Warehousing and distribution have grown along the Loop 101 and Loop 303 corridors as the metro spreads west. Per Data USA, the city held 252,833 people in 2024 with a median household income of $73,530.

Who lives in the 623 region

The West Valley skews young and bilingual. The median age in Glendale was 34.6 in 2024, 42.2 percent of residents were Hispanic, and 18.1 percent were born outside the United States, per Data USA. Spanish is common in daily commerce, and businesses that serve the area often staff phone lines accordingly. Arizona has no daylight saving time, so the offset to the East Coast shifts twice a year. A caller from New York reaches Glendale three hours earlier in summer and two in winter.

What a 623 number signals to a caller

A number with area code 623 reads as West Valley, distinct from the 602 core of Phoenix and the 480 East Valley. Callers describe the region's phone habits as informal but appointment-driven, and local businesses generally expect calls during standard business hours, Mountain Standard Time year round.

Questions