| 100 | 064 | D | SLR Interop 1 | Regional Interop 1 [SLR IO 1] | Interop |
| 101 | 065 | D | SLR Interop 2 | Regional Interop 2 [SLR IO 2] | Interop |
| 102 | 066 | D | SLR Interop 3 | Regional Interop 3 [SLR IO 3] | Interop |
| 103 | 067 | DE | SLR Interop 4E | Regional Interop 4 [SLC REG I/O4E | Interop |
| 104 | 068 | DE | SLR Interop 5E | Regional Interop 5 [SLC REG I/O5E] | Interop |
| 105 | 069 | DE | SLR Interop 6E | Regional Interop 6 [SLC REG I/O6E] | Interop |
| 106 | 06a | DE | SLR Interop 7E | Regional Interop 7 [SCC REG I/O7E] | Interop |
| 107 | 06b | DE | SLR Interop 8E | Regional Interop 8 [SCC REG I/O8E] | Interop |
| 108 | 06c | DE | SLR Interop 9E | Regional Interop 9 [SCC REG I/O9E] | Interop |
| 109 | 06d | DE | Jeff Interop 10E | Jefferson County Interop 10 [JEF REG I/O10E] | Interop |
| 110 | 06e | DE | Jeff Interop 11E | Jefferson County Interop 11 [JEF REG I/O11E] | Interop |
| 111 | 06f | DE | Jeff Interop 12E | Jefferson County Interop 12 [JEF REG I/O12E] | Interop |
| 112 | 070 | DE | STL Region SWAT | Regional Interop SWAT [SLR SWAT] | Law Tac |
| 258 | 102 | D | STL Region I/O 1 | Interop [IO 1] (No longer in use?) | Interop |
| 259 | 103 | D | STL RegionI/O 10 | Interop [IO 10] (No longer in use?) | Interop |
| 260 | 104 | D | STL RegionI/O 11 | Interop [IO 11] (No longer in use?) | Interop |
| 261 | 105 | D | STL RegionI/O 12 | Interop [IO 12] (No longer in use?) | Interop |
| 262 | 106 | D | STL RegionI/O 13 | Interop [IO 13] (No longer in use?) | Interop |
| 263 | 107 | D | STL RegionI/O 14 | Interop [IO 14] (No longer in use?) | Interop |
| 264 | 108 | D | STL RegionI/O 15 | Interop [IO 15] (No longer in use?) | Interop |
| 265 | 109 | D | STL RegionI/O 16 | Interop [IO 16] (No longer in use?) | Interop |
| 266 | 10a | D | STL Region I/O 2 | Interop [IO 2] (No longer in use?) | Interop |
| 267 | 10b | D | STL Region I/O 3 | Interop [IO 3] (No longer in use?) | Interop |
| 268 | 10c | D | STL Region I/O 4 | Interop [IO 4] (No longer in use?) | Interop |
| 269 | 10d | D | STL Region I/O 5 | Interop [IO 5] (No longer in use?) | Interop |
| 270 | 10e | D | STL Region I/O 6 | Interop [IO 6] (No longer in use?) | Interop |
| 271 | 10f | D | STL Region I/O 7 | Interop [IO 7] (No longer in use?) | Interop |
| 272 | 110 | D | STL Region I/O 8 | Interop [IO 8] (No longer in use?) | Interop |
| 273 | 111 | D | STL Region I/O 9 | Interop [IO 9] (No longer in use?) | Interop |
