https://api.e4sip.com/numberCoverage/[NPA]/[api_key]/

Get Request:

Asset Description
[NPA] Numbering Plan Area (Area Code)
[api_key] Your .e4SIP API Key

JSON Response:

Asset Description
status REST Response
npanxx Covered NPANXX Exchange
Use Number Exchange Search to find coverage in a specific Number Plan Areas (NPA)