| 1 | PCCX | Peabody Coal Co. (captive service) | 1/1994-7/2005 (not listed) | | NAKINA |
| 2 | PCCX | Peabody Coal Co. | added 4/1968; eliminated 10/1968; 4/1970; added 1/1971; eliminated 4/1972; 1/1975-1/1980 | | NAKINA |
| 3 | PCCX | Peabody Coal Co. (captive service) | added 10/1957; 10/1957; eliminated 1/1961; 4/1961-10/1966 | | NAKINA |
| 4 | PCCX | Pittsburgh Chemical Co. | 1/1941-1/1946 | | NAKINA |
| 5 | PCCX | Pennsylvania Coal & Coke Corp. | 7/1930-7/1932 | | NAKINA |
| 6 | PCCX | Peabody Coal Co. (captive service) | added 10/57; 10/57-10/66 | | NRHS |
| 7 | PCCX | Peabody Coal Co. | added 4/68; eliminated 10/68; 4/70; added 1/71; eliminated 4/72; 1/75-1/94 | | NRHS |
| 8 | PCCX | Peabody Coal Co. (captive service) | Jul-00 | | NRHS |
| 9 | PCCX | *PITTSBURGH CHEMICAL CO. [PENNSYLVANIA COAL & COKE CO.] | | | PWRC |
| 10 | PCCX | *PEABODY COAL COMPANY (CAPTIVE SERVICE) | | | PWRC |
| 11 | PCCX | *PLUM CREEK CHARTERS | | | PWRC |
| 12 | PCCX | +PHOENIX CEMENT CO., DIV. SALT RIVER PIMAMARICOPA INDIAN COMMUNITY d/b/a SALT RIVER MATERIALS GROUP | | | PWRC |
| 13 | PCCX | Peabody Coal | | | RSRV |
| 14 | PCCX | PEABODY COAL COMPANY | | | SCAC4 |
| 15 | PCCX | Peabody Coal Co. | | USA | TRAFFIC |
