About: http://webisa.webdatacommons.org/187747907

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I just could not find a 10-digit number anywhere on the letter, except in the phone number of the phone itself.
http://www.w3.org/ns/prov#wasQuotedFrom	wirelessapplication.org