Home / Area 650 / Prefix 503
Prefix Lookup

(650) 503 Phone Number Lookup

Research phone numbers under this exchange in San Jose, California. Review carrier details, activity signals, and community caller feedback.

221number listings
0caller reports
13lookup pages

Phone Numbers in This Prefix

Browse numbers in this exchange and open any listing to view caller details, spam signals, and community feedback. Showing 19–36 of 221 listings for this prefix.

Recent activity Landline

(650) 503-4006

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4026

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4046

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4066

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4086

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4106

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4126

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4146

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4166

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4186

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4206

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4226

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4246

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4266

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4286

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4306

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4326

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing
Recent activity Landline

(650) 503-4346

San Jose, California

  • Carrier: Mpower Communications Corp - Ca
  • Exchange: 650-503
  • Report type: Reverse lookup profile
View listing

About this prefix

Area code 650 prefix 503 is organized as a reverse lookup section for San Jose, California. The page combines location metadata, carrier information, line type, number listings, and community activity in one place.

Public URLs use the exchange format 650-503, while each listing still maps back to the correct area code and prefix structure.