| Country | Telephone system |
| Saint Vincent and the Grenadines | general assessment: adequate system domestic: islandwide, fully automatic telephone system; VHF/UHF radiotelephone from Saint Vincent to the other islands of the Grenadines; mobile-cellular teledensity about 75 telephones per 100 persons international: country code - 1-784; the East Caribbean Fiber Optic System (ECFS) and Southern Caribbean fiber optic system (SCF) submarine cables carry international calls; connectivity also provided by VHF/UHF radiotelephone from Saint Vincent to Barbados; SHF radiotelephone to Grenada and Saint Lucia; access to Intelsat earth station in Martinique through Saint Lucia |
| Samoa | general assessment: adequate domestic: NA international: country code - 685; satellite earth station - 1 Intelsat (Pacific Ocean) |
| San Marino | general assessment: adequate connections domestic: automatic telephone system completely integrated into Italian system; combined fixed-line and mobile-cellular teledensity exceeds 130 telephones per 100 persons international: country code - 378; connected to Italian international network |
| Sao Tome and Principe | general assessment: adequate facilities domestic: minimal system international: country code - 239; satellite earth station - 1 Intelsat (Atlantic Ocean) |
| Saudi Arabia | general assessment: modern system domestic: extensive microwave radio relay, coaxial cable, and fiber-optic cable systems; mobile-cellular subscribership has been increasing rapidly international: country code - 966; landing point for the international submarine cable Fiber-Optic Link Around the Globe (FLAG) and for both the SEA-ME-WE-3 and SEA-ME-WE-4 submarine cable networks providing connectivity to Asia, Middle East, Europe, and US; microwave radio relay to Bahrain, Jordan, Kuwait, Qatar, UAE, Yemen, and Sudan; coaxial cable to Kuwait and Jordan; satellite earth stations - 5 Intelsat (3 Atlantic Ocean and 2 Indian Ocean), 1 Arabsat, and 1 Inmarsat (Indian Ocean region) |
| Senegal | general assessment: good system domestic: above-average urban system; more than half of all fixed-line connections are in Dakar with expansion of fixed-line services in rural areas needed; mobile-cellular service is expanding rapidly; microwave radio relay, coaxial cable and fiber-optic cable in trunk system international: country code - 221; the SAT-3/WASC fiber optic cable provides connectivity to Europe and Asia while Atlantis-2 provides connectivity to South America; satellite earth station - 1 Intelsat (Atlantic Ocean) |
| Serbia | general assessment: modernization of the telecommunications network has been slow as a result of damage stemming from the 1999 war and transition to a competitive market-based system; network was only 65% digitalized in 2005 domestic: teledensity remains below the average for neighboring states; GSM wireless service, available through multiple providers with national coverage, is growing very rapidly; best telecommunications service limited to urban centers international: country code - 381 |
| Seychelles | general assessment: effective system domestic: combined fixed-line and mobile-cellular teledensity is roughly 110 telephones per 100 persons; radiotelephone communications between islands in the archipelago international: country code - 248; direct radiotelephone communications with adjacent island countries and African coastal countries; satellite earth station - 1 Intelsat (Indian Ocean) |
| Sierra Leone | general assessment: marginal telephone service domestic: the national microwave radio relay trunk system connects Freetown to Bo and Kenema international: country code - 232; satellite earth station - 1 Intelsat (Atlantic Ocean) (2000) |
| Singapore | general assessment: excellent service domestic: excellent domestic facilities; launched 3G wireless service in February 2005; combined fixed-line and mobile-cellular teledensity is about 150 telephones per 100 persons international: country code - 65; numerous submarine cables provide links throughout Asia, Australia, the Middle East, Europe, and US; satellite earth stations -4; supplemented by VSAT coverage (2003) |
| Slovakia | general assessment: Slovakia has a modern telecommunications system that has expanded dramatically in recent years with the growth in cellular services domestic: analog system is now receiving digital equipment and is being enlarged with fiber-optic cable, especially in the larger cities; 3 companies provide nationwide cellular services international: country code - 421; 3 international exchanges (1 in Bratislava and 2 in Banska Bystrica) are available; Slovakia is participating in several international telecommunications projects that will increase the availability of external services |
| Slovenia | general assessment: well-developed telecommunications infrastructure domestic: combined fixed-line and mobile-cellular teledensity exceeds 130 telephones per 100 persons international: country code - 386 |
| Solomon Islands | general assessment: NA domestic: NA international: country code - 677; satellite earth station - 1 Intelsat (Pacific Ocean) |
| Somalia | ngeneral assessment: the public telecommunications system was almost completely destroyed or dismantled during the civil war; private wireless companies offer service in most major cities and charge the lowest international rates on the continent domestic: local cellular telephone systems have been established in Mogadishu and in several other population centers international: country code - 252; international connections are available from Mogadishu by satellite (2001) |
| South Africa | general assessment: the system is the best developed and most modern in Africa domestic: combined fixed-line and mobile-cellular teledensity roughly 100 telephones per 100 persons; consists of carrier-equipped open-wire lines, coaxial cables, microwave radio relay links, fiber-optic cable, radiotelephone communication stations, and wireless local loops; key centers are Bloemfontein, Cape Town, Durban, Johannesburg, Port Elizabeth, and Pretoria international: country code - 27; the SAT-3/WASC and SAFE fiber optic cable systems connect in South Africa providing connectivity to Europe and Asia; satellite earth stations - 3 Intelsat (1 Indian Ocean and 2 Atlantic Ocean) |
| South Georgia and the South Sandwich Islands | general assessment: NA domestic: NA international: coastal radiotelephone station at Grytviken |
| Southern Ocean | void |
| Spain | general assessment: well developed, modern facilities; fixed-line teledensity is 45 per 100 persons domestic: combined fixed-line and mobile-cellular teledensity is 160 telephones per 100 persons international: country code - 34; submarine cables provide connectivity to Europe, Middle East, Asia, and US; satellite earth stations - 2 Intelsat (1 Atlantic Ocean and 1 Indian Ocean), NA Eutelsat; tropospheric scatter to adjacent countries |
| Spratly Islands | void |
| Sri Lanka | general assessment: telephone services have improved significantly and are available in most parts of the country domestic: national trunk network consists mostly of digital microwave radio relay; fiber-optic links now in use in Colombo area and 2 fixed wireless local loops have been installed; competition is strong in mobile cellular systems and mobile cellular subscribership is increasing; combined fixed-line and mobile-cellular teledensity is about 50 per 100 persons international: country code - 94; the SEA-ME-WE-3 and SEA-ME-WE-4 submarine cables provide connectivity to Asia, Australia, Middle East, Europe, US; satellite earth stations - 2 Intelsat (Indian Ocean) |
| Sudan | general assessment: large, well-equipped system by regional standards and being upgraded; cellular communications started in 1996 and have expanded substantially domestic: consists of microwave radio relay, cable, radiotelephone communications, tropospheric scatter, and a domestic satellite system with 14 earth stations international: country code - 249; linked to international submarine cable Fiber-Optic Link Around the Globe (FLAG); satellite earth stations - 1 Intelsat (Atlantic Ocean), 1 Arabsat (2000) |
| Suriname | general assessment: international facilities are good domestic: combined fixed-line and mobile-cellular teledensity about 90 telephones per 100 persons; microwave radio relay network international: country code - 597; satellite earth stations - 2 Intelsat (Atlantic Ocean) |
| Svalbard | general assessment: probably adequate domestic: local telephone service international: country code - 47-790; satellite earth station - 1 of unknown type (for communication with Norwegian mainland only) |