The following configuration snippet allows to use COR to block 1-<10 digits> calls to countries outside US and Canada) for a typical North American installation.
dial-peer voice 1242 pots
description Bahamas
destination-pattern 91286[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1246 pots
description Barbados
destination-pattern 91246[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1264 pots
description Anguilla
destination-pattern 91264[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1268 pots
description Antigua and Bermuda
destination-pattern 91286[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1284 pots
description British Virgin Islands
destination-pattern 91284[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1340 pots
description US Virgin Islands
destination-pattern 91340[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1345 pots
description Cayman Islands
destination-pattern 91345[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1441 pots
description Bermuda
destination-pattern 91441[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1473 pots
description Grenada
destination-pattern 91473[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1649 pots
description Turks and Caicos
destination-pattern 91649[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1664 pots
description Montserrat
destination-pattern 91664[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1670 pots
description Northern Mariana
destination-pattern 91670[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1671 pots
description Guam
destination-pattern 91671[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1684 pots
description American Samoa
destination-pattern 91684[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1721 pots
description St. Maarten
destination-pattern 91721[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1758 pots
description St. Lucia
destination-pattern 91758[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1767 pots
description Dominica
destination-pattern 91767[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1784 pots
description St. Vincent and the Grenadines
destination-pattern 91784[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1787 pots
description Puerto Rico
destination-pattern 91787[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1809 pots
description Dominican Republic
destination-pattern 918[024]9[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1868 pots
description Trinidad and Tobago
destination-pattern 91868[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1876 pots
description Jamaica
destination-pattern 91876[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1869 pots
description St Kitts and Nevis
destination-pattern 91876[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
dial-peer voice 1939 pots
description Puerto Rico
destination-pattern 91939[2-9]......
forward-digits 11
port 0/0/0:23
corlist outgoing call-int
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