Public regulatory phone

(719) 584-0578

Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.

Company or contact	FRN	System	Source record	Confidence	Observed
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	1604e8f6c2b0a44492f90a69d9f986cd26f4d8a2938c63deb0ba0df170f5f933	Authoritative identifier (100.0%)	2026-09-17 03:45:57
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	15b3b4c0f101f4da51d5860fce6cc59b11f72e44f9e7798fcfefc3ad4e4318be	Authoritative identifier (100.0%)	2026-09-16 17:15:55
Transportation Technology Center, Inc. L	0001621838	ULS	15825eafb4888da5aee7fe71c2d45655a3ab6ff0d8762395f28a48f716fceb08	Authoritative identifier (100.0%)	2026-09-16 09:15:56
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	154cc9eb727e8c47f0ff81272f1f08cbdaf0319ef779a547ac8aabd423aaad65	Authoritative identifier (100.0%)	2026-09-15 20:45:54
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	14881cf20da57400b822b8993052fcf791479c435b6d8b54d1c609b955c46633	Authoritative identifier (100.0%)	2026-09-13 18:16:06
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	14603674fef524b76dab09e55ec7791bfd3088315c8b2f291e6e3fad80daaa2c	Authoritative identifier (100.0%)	2026-09-13 13:15:50
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	136149bc472ea093b441ef303b5fd0efdc92559a4d68acc65dcb21b851dd5514	Authoritative identifier (100.0%)	2026-09-12 04:45:38
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	1299425f4a2d253f379eef42926e866b7de7b0a9d0c21857268b08a264d693db	Authoritative identifier (100.0%)	2026-09-10 18:15:31
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	1251f5ba4299e56889bba675c0e06f42434589ba8c51c819cd8eaa68f5d8156b	Authoritative identifier (100.0%)	2026-09-10 09:45:30
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	11f6f64dfae4fac08f70c79fc76fb18a6379e6d88d94e4fa7a2869ee52c7110b	Authoritative identifier (100.0%)	2026-09-09 23:15:29
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	11615ed3ad25f0672bf35e6e1f1f7041e4126e703f0c40130d9f23458fa031e4	Authoritative identifier (100.0%)	2026-09-09 05:15:34
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	10b2036365edd78ba6a8a8efb23e7b37a1db44c3b35fbf1126f530f26b22bc51	Authoritative identifier (100.0%)	2026-09-07 23:15:25
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	108b6f30e800c5467c9c9813221a0dee0c45bcd60e62bf9e8f12b98985267a82	Authoritative identifier (100.0%)	2026-09-07 18:15:23
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0fffccd0d0393bd43473492627b9d715dc6594871a9b5f596217b4510727ad2e	Authoritative identifier (100.0%)	2026-09-05 00:15:14
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0fa5a680ea7c64ef65f900dc9bda671c50cbd5b68d97d4e71ba4ec89b8f2aa37	Authoritative identifier (100.0%)	2026-09-02 18:14:59
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0fa0cb711683467fc37f86a3d90fb2a863f88db280fd77b9abc9559546699dfe	Authoritative identifier (100.0%)	2026-09-02 16:45:08
ASSOCIATION OF AMERICAN RAILROADS DBA TRANSPORTATION TECHNOLOGY CENTER INC BNSF L		ULS	0f011f73cea6508e4fffec82efc5f9b15f205acccffd6847bb5808882f11dd57	Authoritative identifier (100.0%)	2026-08-30 23:45:03
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0e14839c0b3293fff0698049070517f42b00dc50306e2d675d69f6ab2012efcb	Authoritative identifier (100.0%)	2026-08-28 11:14:38
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0dbc390fa4be77910b36bbf89b9d21e9d353e7228a2bb169b0540faa91ae3043	Authoritative identifier (100.0%)	2026-08-27 22:44:42
ASSOCIATION OF AMERICAN RAILROADS DBA TRANSPORTATION TECHNOLOGY CENTER INC L		ULS	0b9d3d1efbbb7beedc8089cd190661a0775abdf1bfd733f6e50a6f470d1811a4	Authoritative identifier (100.0%)	2026-08-21 14:44:02
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0b220dcf36cc08cb1d5267bb0444abb6c2e9afebf668cbf83eb68a58368b3dd1	Authoritative identifier (100.0%)	2026-08-20 13:44:01
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0b186100ff16b04fd5ad7912c19604f633b8cf427e7869ec632502a99cd3f653	Authoritative identifier (100.0%)	2026-08-20 12:13:59
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0b0bac6b61ba96b0beffc34ee42fd65c3a5c37bf94726e5fbee342ee44c9f531	Authoritative identifier (100.0%)	2026-08-20 11:14:00
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0b0e0e58c36db65251d7b01fcb7aebd00c6c03223892e96dd23427ed75863c47	Authoritative identifier (100.0%)	2026-08-20 11:14:00
ASSOCIATION OF AMERICAN RAILROADS DBA TRANSPORTATION TECHNOLOGY CENTER INC L		ULS	0ab0fb47da6f77ffde9bbbd32b7d40030fddfe8f382cb10ea44ed75c99be35cb	Authoritative identifier (100.0%)	2026-08-19 18:43:53
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	08a6fef669b55d2995fdb401c837434b300263581c2305535bd144060788db15	Authoritative identifier (100.0%)	2026-08-14 23:19:19
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	07bfba2734dc129198bfb421e96a9adb018bfc366a21c9934683fac2b6a2d8b4	Authoritative identifier (100.0%)	2026-08-13 06:49:13
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	076bbef1dfd67ed5f3c67bf0d0a694b6f6c0de56652198117cb9c0913d82a686	Authoritative identifier (100.0%)	2026-08-12 19:19:08
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	06cf6a915f9ceb4e843e51b62434f41496b3e505b14b7a260e79eaabb791d91f	Authoritative identifier (100.0%)	2026-08-12 01:49:04
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	065d7dcc8cd54b09cb709e97eea52f176e07609d1a3a0a49ce27004de6bc51f0	Authoritative identifier (100.0%)	2026-08-11 06:49:02
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	059dd33ced0d9fc2392ac08c64a8a3d15e29ea4b4e29f8d29dccd0b50689ae89	Authoritative identifier (100.0%)	2026-08-10 02:18:53
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	04ad444acc0be77d1ac3f58c04177e7176f9023d29b27f7ad22eb6d33bf48c1b	Authoritative identifier (100.0%)	2026-08-08 02:18:46
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	049e9ff71e56ceb941ab0722bc91126e98554dc352ae541aa710637a524dff42	Authoritative identifier (100.0%)	2026-08-08 00:48:43
CSX Transportation L	0002036325	ULS	04948aaaf5d1475e898296262d5c6306850604107f72e3323079ae00acf7ab6f	Authoritative identifier (100.0%)	2026-08-07 23:18:44
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	02e458cdb7360441cb14fb2da5e838a34211ef7969f6a1251bc13173c1ccea4a	Authoritative identifier (100.0%)	2026-08-05 10:18:30
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	024bdaaeb5b5f20698a266cfbaf4f1aa6d068b87434fa000f440009f0a82c66c	Authoritative identifier (100.0%)	2026-08-04 15:18:27
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	02167188d07a225b99899d0a290141c5d63facd5c9d944ec489b63f3280217c8	Authoritative identifier (100.0%)	2026-08-04 09:18:25
Transportation Technology Center, Inc. L	0001621838	ULS	0150e992e2cac134558f6dbe1f77cdf4357b90c97bfebe4641447bda6c7a0445	Authoritative identifier (100.0%)	2026-08-03 02:48:26
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	0146bd1ec6a0220845c2e8bcda6996b4b2841c96372e47e68e3c94b35fe01ed7	Authoritative identifier (100.0%)	2026-08-03 00:48:23
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	00d0c4467c1351354efd3a3a748683a2f07b97c0d48c1b6fbd0ce7fc120fd8a7	Authoritative identifier (100.0%)	2026-08-01 23:18:16
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	007ed6dae4213da7d4080d1908017255e98470ef80fc32f8006fceaa7dea3b83	Authoritative identifier (100.0%)	2026-08-01 12:18:13
ASSOCIATION OF AMERICAN RAILROADS L	0004228995	ULS	007b8835bb6c3c956c0c604a313f682301e3b9111f7bffa33f5746c6ea74a936	Authoritative identifier (100.0%)	2026-08-01 10:48:18