The number seems to be owned by Level3, so its likely that its a VOIP line unles...

		iwejfweoifjweif on Sept 12, 2012 \| parent \| context \| favorite \| on: Strange phone number: asks for Agent Code, gives e... The number seems to be owned by Level3, so its likely that its a VOIP line unless Level3 does regular phone circuits in the Denver area. (Source: http://www.telcodata.us/search-area-code-exchange-detail?npa...)