The numbers I gave are for bell and should work in the 416/647/905 area (on exchanges that bell owns) . They differ carrier to carrier but generally speaking you can try NXX-ANAC (2622) and NXX-TEST (8378) on most carriers but some have different numbers.
Another bell number 416-981-0001 ANAC + Ringback + Loopback 519 958-2622 Bell ANAC 519 555-0311 Rogers ANAC 613 958-2622 Bell ANAC 613 555-0311 Rogers ANAC If you call the bell ANAC from a bell line it should read CPN else if your calling from a different carrier it will most likely read callerid. If you still can't find the test numbers for your area you can always just find a linesman working and ask. Blaine Aldridge
