Prefix Information
The prefix 423 is part of area code 956 serving Laredo, Texas.
This exchange contains 10,000 possible phone numbers (956-423-0000 through 956-423-9999).
Phone numbers with prefix 423 in area code 956. Location: Laredo, Texas.
The prefix 423 is part of area code 956 serving Laredo, Texas.
This exchange contains 10,000 possible phone numbers (956-423-0000 through 956-423-9999).