| 346-200 | Neutral Tandem-texas, Llc - Tx | Landline | Houston |
| 346-201 | Mci Worldcom Communications, Inc. - Tx | Landline | Houston |
| 346-204 | Centurylink Communications Llc | - | Houston |
| 346-208 | Cellco Partnership Dba Verizon Wireless - Tx | Wireless | Houston |
| 346-209 | Centurylink Communications Llc | Landline | Houston |
| 346-212 | Cellco Partnership Dba Verizon Wireless - Tx | Wireless | Houston |
| 346-215 | Broadvox-clec, Llc - Tx | Landline | Houston |
| 346-216 | Mcimetro Access Transmission Services Llc | Landline | Houston |
| 346-217 | New Cingular Wireless Pcs, Llc - Il | Wireless | Houston |
| 346-218 | Aerial Communications | Wireless | Houston |
| 346-221 | New Cingular Wireless Pcs, Llc - Il | Wireless | Houston |
| 346-222 | La Porte, TX | Landline | Foremost Telecommunications Corporation |
| 346-224 | Comcast Phone Of Texas, Llc - Tx | Landline | Houston |
| 346-225 | New Cingular Wireless Pcs, Llc - Il | Wireless | Houston |
| 346-228 | New Cingular Wireless Pcs, Llc - Il | Wireless | Houston |
| 346-231 | Level 3 Communications, Llc - Tx | Landline | Houston |
| 346-234 | New Cingular Wireless Pcs, Llc - Il | Wireless | Houston |
| 346-240 | Comcast Phone Of Texas, Llc - Tx | Landline | Houston |
| 346-247 | Texas (TX) | Landline | Logix Communications Corporation |
| 346-248 | Sbc Internet Services, Inc. | Landline | Houston |
| 346-301 | Bandwidth.com Clec, Llc - Tx | Landline | Houston |
| 346-303 | Aerial Communications | - | Houston |
| 346-304 | Comcast Phone Of Texas, Llc - Tx | - | Houston |
| 346-305 | Southwestern Bell | Landline | Houston |
| 346-307 | Mci Worldcom Communications, Inc. - Tx | - | Houston |
| 346-308 | Peerless Network Of Texas, Llc - Tx | - | Houston |
| 346-309 | Comcast Phone Of Texas, Llc - Tx | - | Houston |
| 346-331 | Comcast Phone Of Texas, Llc - Tx | Landline | Houston |
| 346-401 | Aerial Communications | Wireless | Houston |
| 346-444 | Houston, TX | Landline | Foremost Telecommunications Corporation |
| 346-571 | Comcast Phone Of Texas, Llc - Tx | - | Houston |
| 346-600 | Neutral Tandem-texas, Llc - Tx | Landline | Houston |
| 346-666 | Onvoy, Llc - Tx | Landline | Houston |
| 346-701 | Citrix Communications Llc | Landline | Houston |
| 346-703 | Comcast Phone Of Texas, Llc - Tx | Landline | Houston |
| 346-704 | Bandwidth.com Clec, Llc - Tx | Landline | Houston |
| 346-720 | Houston, TX | Landline | Southwestern Bell |
| 346-721 | Houston, TX | Landline | Southwestern Bell |
| 346-722 | Houston, TX | Landline | Southwestern Bell |
| 346-723 | Houston, TX | Landline | Southwestern Bell |
| 346-725 | Houston, TX | Landline | Southwestern Bell |
| 346-726 | Houston, TX | Landline | Southwestern Bell |
| 346-727 | Houston, TX | Landline | Southwestern Bell |
| 346-728 | Houston, TX | Landline | Southwestern Bell |
| 346-729 | Houston, TX | Landline | Southwestern Bell |
| 346-772 | Level 3 Communications, Llc - Tx | - | Houston |
| 346-800 | Neutral Tandem-texas, Llc - Tx | Landline | Houston |
| 346-802 | Cellco Partnership Dba Verizon Wireless - Tx | Wireless | Houston |
| 346-808 | Bandwidth.com Clec, Llc - Tx | Landline | Houston |
| 346-834 | Houston, TX | Landline | Southwestern Bell |
| 346-900 | Neutral Tandem-texas, Llc - Tx | Landline | Houston |
| 346-901 | Time Warner Communications Of Houston, Lp | Landline | Houston |
| 346-932 | Texas (TX) | Landline | Logix Communications Corporation |
| 346-971 | Southwestern Bell | - | Houston |
| 346-980 | Big River Telephone Company, Llc - Tx | Landline | Houston |
| 346-999 | Huffman, TX | Landline | Foremost Telecommunications Corporation |