47 CFR § 24.129 - Frequencies.
The following frequencies are available for narrowband PCS:
(a) Eighteen frequencies are available for assignment on a nationwide basis as follows:
(1) Seven 50 kHz channels paired with 50 kHz channels:
(2) Three 50 kHz channels paired with 12.5 kHz channels:
(3) Two 50 kHz unpaired channels:
(4) One 100 kHz unpaired channel:
(5) Two 150 kHz channels paired with 50 kHz channels:
(6) Three 100 kHz channels paired with 50 kHz channels:
(b) Five frequencies are available for assignment on a regional basis as follows:
(1) One 50 kHz channel paired with 50 kHz channel:
(2) Four 50 kHz channels paired with 12.5 kHz channels:
(c) Seven frequencies are available for assignment on an MTA basis as follows:
(1) Three 50 kHz unpaired channels:
(2) One 50 kHz channel paired with 50 kHz channel:
(3) One 100 kHz channel paired with 50 kHz channel:
(4) One 150 kHz channel paired with 50 kHz channel:
(5) One 100 kHz channel paired with 12.5 kHz channel:
Operations in markets or portions of markets which border other countries, such as Canada and Mexico, will be subject to on-going coordination arrangements with neighboring countries.