A Network Support Site code represents any non-building structures or outside plant equipment such as Wireless Access Points, International Boundary Crossing Points, End-Points, Fiber Nodes, Junctions, Manholes, Poles, Base Transceiver Station / Radio Equipment and Repeaters.
[12] Apparently, the organizational structure of Southwestern Bell Telephone at the time considered Richardson to be within its own Dallas organization, although the cities themselves have always been legally separate.
This one held out a little longer than most as it was a small community in formerly independent telco territory, but was ultimately replaced by a digital remote station SWASONXTRSA controlled from Timmins TMNSONXTCG0.
Rogers is not a landline incumbent but a rival mobile telephone carrier with a block of 220000 Ottawa numbers.
[16] Similar naming conventions apply for CLEC exchanges at a point of interconnection to incumbent carrier networks.
It is in Peel Region and therefore in a different local interconnection region, a different area code (905 instead of 416) and different, multiple rate centres (Clarkson, Streetsville, Cooksville, Malton, Port Credit; Bell Canada has no named "Mississauga" exchange despite the city's incorporation in 1973).
Callers from Markham would be a local call to the hotels but long-distance to the airport itself, even though both destinations are served by the same physical Digital Multiplex System switch.
A similar exchange on the other side of the town line (such as TOROON29DS0, located 900 metres east of Toronto's western city limits at 40 Old Burnhamthorpe Road, Etobicoke and serving multiple rate centres) would be issued a Toronto CLLI to reflect the location of the switch itself, but follow the same pattern of a more restrictive calling area for individual subscribers outside city limits.
This is an unattended, automated remote switch housed in a small, square windowless brick building on a side street in Marysville village.