Stayonline is the best vendor for power-related items I've ever dealt with. Several times we've been in a bind and they've shipped obscure cables with Saturday delivery to make sure I got them on time. Very easy to work with and excellent selection.
█ iCall Carrier Services - Carrier-grade VoIP services from a licensed CLEC - http://carriers.icall.com
█ Domestic termination and origination, toll-free origination, A-Z International termination, dedicated servers, and colocation in our wholly-owned datacenter
█ Real-time ordering via our control panel or XML-based API with over 20,000 numbers in stock
Continuum uses CSC for sourcing almost everything at our Chicago data center, and couldn't be happier. Locally, I can get same day delivery. They are a nationwide distributer, so shipping nationwide is not an issue.