https://api.e4sip.com/numberOrder/[numberID]/[api_key]/

Get Request:

Asset Description
[numberID] Unique Identifier
[api_key] Your .e4SIP API Key

JSON Response:

Asset Description
[destination_number] NPANXXXXXX format Destination Number
[caller_number]  (DID) in NPANXXXXXX format must be .e4SIP Phone Number
[message] SMS message, plain text URL encoded – Maximum characters length 160
Phone Number Ordering (DID) is used to purchase telephone numbers from our extensive inventory with nationwide VoIP coverage.