Phone Prefix

(240) 557-XXXX

MD • WSHNGTNZN6

Search Number in This Prefix

(240) 557-

Enter the last 4 digits to search for a specific number

Carrier Information

NANPA
State MD
Region MA
Rate Center WSHNGTNZN6
Assigned To TELNYX LLC
OCN 073H
Status AS
Date Assigned Apr 11, 2017

Number Range

First Number (240) 557-0000
Last Number (240) 557-9999

This prefix contains 10,000 possible phone numbers

Spam Reports

29 reports
29 Total FCC + FTC DNC complaints for numbers in this prefix

Top 26 Most Reported Numbers

# Phone Number Reports
1 (240) 557-3824 2405573824 2
2 (240) 557-2635 2405572635 2
3 (240) 557-3542 2405573542 2
4 (240) 557-1829 2405571829 1
5 (240) 557-1831 2405571831 1
6 (240) 557-1940 2405571940 1
7 (240) 557-2198 2405572198 1
8 (240) 557-2825 2405572825 1
9 (240) 557-3164 2405573164 1
10 (240) 557-3181 2405573181 1
11 (240) 557-3217 2405573217 1
12 (240) 557-3295 2405573295 1
13 (240) 557-3362 2405573362 1
14 (240) 557-3450 2405573450 1
15 (240) 557-3522 2405573522 1
16 (240) 557-3836 2405573836 1
17 (240) 557-3849 2405573849 1
18 (240) 557-3921 2405573921 1
19 (240) 557-5478 2405575478 1
20 (240) 557-8237 2405578237 1
21 (240) 557-8478 2405578478 1
22 (240) 557-8574 2405578574 1
23 (240) 557-0757 2405570757 1
24 (240) 557-8723 2405578723 1
25 (240) 557-0778 2405570778 1
26 (240) 557-1514 2405571514 1

About This Prefix

Phone numbers starting with (240) 557 are part of the North American Numbering Plan (NANP). The first three digits (240) represent the Area Code (NPA), and the next three digits (557) represent the Central Office Code (NXX) or exchange.

  • NPA (240) - Numbering Plan Area, identifies the geographic region
  • NXX (557) - Central Office Code, identifies the specific exchange
  • XXXX - Subscriber number (0000-9999)