All ICE operations are using APCO P-25 digital mode with AES encryption. The different offices within ICE have their own encryption keys, as well as a common encryption key for all ICE agencies. It appears that these radio networks are not linked to a nationwide dispatch center. But they are apparently connected to regional and local area ICE offices. If an ICE unit needs to run a license plate or requires some other assistance, they do contact the CBP National Law Enforcement Communications Center (NLECC) in Orlando on the CBP radio channels. Here are some frequencies that are specifically allocated to Immigrations and Customs Enforcement (ICE) operations;

Here are the nationwide ICE conventional channels that have been confirmed over the to the years;

162.9125 N069 ICE Nationwide Repeater – input

163.1125 N169 ICE Nationwide TAC 3

163.7000 N169 ICE Nationwide TAC 1

163.7250 N169 ICE Nationwide Direct

164.7875 N169 ICE Nationwide TAC 4

165.8375 100.0PL DHS Common (analog)

165.8375 N001 DHS Common (P-25)

166.4625 103.5PL Nationwide Federal Common (analog)

166.4625 N001 Nationwide Federal Common (P-25)

168.5875 N169 ICE Nationwide TAC 2

171.2500 N069 ICE Nationwide Repeater

407.7000 N169 ICE UHF TAC 1

414.8000 N169 ICE UHF TAC 2

414.8625 N169 ICE UHF TAC 3

416.7000 N169 ICE UHF TAC 4

In addition to these assigned frequencies, ICE has regional “clusters” of VHF repeaters that are linked together. The systems are usually set up using “vote-scan”, where the subscriber radios in the field will automatically search out the nearest repeater sites as they move through the region. Vote scan systems can be spotted by watching for repeaters keying up briefly at regular intervals.

Let us look at some of these ICE regional systems. In 2014, ICE began to upgrade their older radio systems in Florida. These new ICE repeaters have been seen using a P-25 network access code (NAC) of N100, N200 or NF00. Here are some of the new repeater frequencies that appear to be associated with the ICE communications system:

164.2250, N200

164.9250, N200

166.7375, N200

167.3000, N200

167.8500, N200

169.1625, N100

169.6000, N100

169.9125, N100

170.3375, NF00

172.0625, N100

172.5625, N200

172.7625, N100

These frequencies have been heard along the western coast and Florida panhandle area:

164.9250, N200

165.8500, N169

171.3250, N200

171.6625, N200

171.7625, N200

The frequencies using the NAC of 200 seem to be all linked and used along the Florida panhandle and into Mississippi and Alabama, from listener reports.

Moving up to the northeast part of the country, including Connecticut, Massachusetts, New Jersey, and Pennsylvania;

163.6500, N305 Bolton, CT

163.6500, N385 Philadelphia, PA

163.6750, N319 Boston, MA (Logan Airport)

163.6750, N296 Manchester, NH

163.7000, N301 Providence, RI

163.7375, N382 Trenton, NJ

163.7500, N289 Boston, MA

163.7500, N300 Ledyard, CT

163.7750, N303 Mt. Washington Observatory, NH

165.7375, N291 Boston, MA

166.2750, N296 Greenfield, MA

167.5375, N297 Avon, CT

169.8000, N389 Pittsburgh, PA

170.7250, N388 Harrisburg, PA

172.7750, N294 Worcester, MA

Here is a list of suspected locations of ICE vote-scan repeaters in the Garden State. This network uses a common P-25 NAC for all the sites:

167.7250, N9C5 Trenton

167.7750, N9C5 Long Beach Island

170.3375, N9C5 Swedesboro

171.6875, N9C5 Newark

171.7500, N9C5 Morristown

171.9875, N9C5 Philadelphia

172.2125, N9C5 Atlantic City

In the Philadelphia, PA area, I believe there is an ICE vote-scan network operating. I do not have the exact location of the repeaters, but they are all operating with similar P-25 NACs:

162.8250, N383

162.9000, N383

163.7875, N382

170.1625, N382

171.1875, N385

172.2625, N384

Now let’s move out to the west coast and the Los Angeles area, with some known ICE operations there:

163.7500, N109

163.8250, N111

165.9250, N112

168.8250, N104

168.8250, N108

168.8500, N110

168.9250, N115 - LAX Airport TBIT (Tom Bradley International Terminal)

168.9750, N106

170.6250, N114

170.6750, N113

In the Atlanta, Georgia area, I have found multiple regional repeaters that seem to be part of an ICE vote-scan network. I first stumbled on these during the Super Bowl game in Atlanta in 2019. These repeaters were busy during my visit to the Atlanta area, and were completely encrypted, and using the Network Access Codes (NAC) of NB10 and NB11. The P-25 radio identifications all appeared to be in the range previously identified as being used by ICE. The 162 MHz frequencies are likely the input channels to the repeaters:

162.2250, NB10

162.9250, NB11

166.4750, NB10

169.3750, NB10

169.7375, NB10

169.9125, NB10

170.1000, NB10

170.4375, NB10

170.9875, NB10

171.1875, NB10

171.5250, NB10

172.1125, NB10

173.7875, NB10

ICE has a VHF trunked system in the San Francisco Bay area and is planning for additional trunked systems in the future. The SF area P25 trunked system, identified as System 4D5, is shared by other DHS agencies as well. You can find out more about this system and frequencies on the Radio Reference site. It lists the system under Customs and Border Protection, but the system is managed by Immigration and Customs Enforcement.

The planned ICE trunked system for the Caribbean will be VHF P-25 and will also be shared with other DHS agencies, as well as other federal law enforcement agencies. This new trunked system will replace a mishmash of aging conventional repeaters that are not able to currently cover the U.S. territories in the area around Puerto Rico. These new frequencies should start coming online in the next couple of years as construction progresses.

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