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 37–54 of 221 listings for this prefix.

Recent activity Landline

(650) 503-4366

San Jose, California

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

(650) 503-4386

San Jose, California

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

(650) 503-4406

San Jose, California

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

(650) 503-4426

San Jose, California

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

(650) 503-4446

San Jose, California

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

(650) 503-4466

San Jose, California

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

(650) 503-4486

San Jose, California

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

(650) 503-4506

San Jose, California

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

(650) 503-4526

San Jose, California

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

(650) 503-4546

San Jose, California

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

(650) 503-4566

San Jose, California

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

(650) 503-4586

San Jose, California

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

(650) 503-4606

San Jose, California

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

(650) 503-4626

San Jose, California

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

(650) 503-4646

San Jose, California

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

(650) 503-4666

San Jose, California

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

(650) 503-4686

San Jose, California

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

(650) 503-4706

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.