| CoID | Company | Type | Status | States Served | 24X7 Phone |
|---|---|---|---|---|---|
| SPTC | South Park Telephone Co | Other | RLEC | A | CO | 719-676-3131 |
| SPUR9 | Spurwink Services | Other (must identify below) | End customer with multiple locations | A | ME | 207-871-1200 |
| SPWF | Sprint - CANCELLED | Wireless/Cellular/PCS | C | USA - Nation Wide | 866-398-3284 |
| SPWIF | Sprint - CANCELED | Wireless/Cellular/PCS | C | USA - Nation Wide | 866-398-3284 |
| SQD | Sonic Telecom LLC | CLEC Facility CLEC UNE VoIP Provider | A | CA | 877-706-5662 |
| SRC | Santa Rosa Telephone Cooperative Inc. | CLEC Facility ILEC | A | OK | TX | 940-886-8878 |
| SRPCS | Snake River PCS | Wireless/Cellular/PCS | A | USA | 541-540-6266 |
| SRSMI | SRS Pharmacy Systems Inc | VoIP Reseller | A | USA - Nationwide | 888-422-5122 |
| SRT | Integra Telecom | ILEC | C | MN | 877-679-9432 |
| SRTCI | SRT Communications Inc. | ILEC | A | ND | 701-858-5444 |
| SRTI | Standing Rock Telecommunications Inc. - CANCELLED | Wireless/Cellular/PCS | C | ND | SD | 701-854-7098 |
| SRTT | Saco River Telegraph&Telephone Co. (Cancelled) | ILEC | C | ME | 207-929-9931 |
| SSA | The Steamship Authority - CANCELLED | PBX/PS911/Shared Tenant | C | MA | 508-564-0923 |
| SSADC | West Safety Services | PBX/PS911/Shared Tenant | A | 4807198557 | 4807198557 |
| SSC | SecureSysCom Inc. - CANCELLED | CLEC UNE | C | ME | NH | 207-203-2005 |
| SSCTC | South Slope Cooperative Telephone Company | CLEC Facility Co-Op/Rural ILEC VoIP Provider | A | IA | 319-626-2211 |
| SSD | Springfield School District - CANCELLED | PBX | C | Springfield Township | 610-938-6000 |
| SSHAW | Seyfarth Shaw LLP | PBX/PS911/Shared Tenant | A | MA | 617-946-4845 |
| SSI | Southeastern Services Inc. - (Cancelled) | CLEC Facility | C | FL | 888-743-9515 |
| SSIP | SimSIP LLC | VoIP Provider | A | USA - Nationwide | 320-403-1990 |
| SSMC | South Shore Medical Center Inc - CANCELLED | PBX/PS911/Shared Tenant | C | MA | 781-624-800 |
| SSNET | SageNet LLC | VoIP Reseller VoIP Provider | A | USA - Nation Wide | 800-325-9202 |
| SSSAD | SOCIAL SECURITY BALTIMORE - CANCELLED | PBX/PS911/Shared Tenant | C | USA - Nationwide | 410-965-6100 |
| SSTAR | Sliver Star Communications | ILEC | A | WY | ID | 307-883-2411 |
| SSU | Shawnee State University | PBX/PS911/Shared Tenant | A | OH | 740-351-3232 |
| SSUMA | Salem State University | PBX/PS911/Shared Tenant | A | MA | 978-542-4000 |
| SSYS | Sonic Systems Inc. | PBX/PS911/Shared Tenant VoIP Reseller | A | USA - Nationwide | 760-242-2777 |
| ST011 | Stonehenge Telecom - CANCELLED | VoIP Provider | C | USA | 352-360-5684 |
| STA | St. Anthony Parish | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) | A | WA | 425-457-3944 |
| STAC | St. Thomas Aquinas College - CANCELLED | C | 845-398-4050 | ||
| STAK8 | Stack8 Technologies (USA) Inc. | VoIP Reseller | A | USA - Nationwide | 844-940-4110 |
| STALK | StratusTalk | VoIP Provider | A | USA - Nationwide | Virgin Islands | 703-496-4990 |
| STANT | Stanton Telecom Inc. | ILEC | A | NE | 402-439-2264 |
| STAR | Starpower Communications (INACTIVE) | Facility | C | DC, MD, VA | 610-574-7919 |
| STAR1 | Star Communications | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) | A | LA | 208-548-2345 |
| START | Star Telephone Membership Corp | CLEC Facility Co-Op/Rural ILEC VoIP Provider | A | NC | 800-945-4233 |
| STAS | FBI-Spec Tech & App Section - CANCELLED | VoIP Provider | C | DC | VA | 800-773-7911 |
| STBS | STBS Inc. (CANCELLED) | VoIP Reseller | C | US | 301-585-1200 |
| STC | Schaller Telephone Company | Facility | A | IA | 712-275-4211 |
| STC01 | Sycamore Telephone Company | ILEC | A | OH | 419-927-6012 |
| STCAL | Standard Telephone Company (Cancelled - See ALLTL) | Facility | C | USA | 706-776-4611 |
| STCC | Springfield Technical Community College Police | VoIP Provider | A | MA | 413-755-4211 |
| STCL | City of Saint Cloud | PBX/PS911/Shared Tenant | VoIP | A | FL | 407-922-2853 |
| STCMS | Southern Telecommunications | CLEC Reseller VoIP Reseller VoIP Provider | A | USA - Nationwide | 601-594-9118 |
| STCO | Shidler Telephone Company - CANCELLED | Facility | C | OK | 918-793-2211 |
| STCOM | S & T Communications LLC | CLEC Facility Wireless/Cellular/PCS VoIP Provider | A | CO | KS | 785-694-2256 |
| STELL | Stellarc Communications | VoIP Reseller | A | CA | 209-434-0777 |
| STERL | Sterling Financial(Cancelled) | PBX/PS911/Shared Tenant, VoIP | C | PA | 717-405-1727 |
| STEU | Steuben County | PBX | A | Steuben County | NY | 607-664-2248 |
| STFL | State of Florida/Department of State (Cancelled) | Facility | C | FL | 850-487-6021 |