You are here

Home

National Destination Code:312

This is the United States National Destination Code:312 Area Code Database page list. You can click the title to browse the detail information.
Region Code: IL
Region Name City Sn from Sn to Carrier Name Number Type
Illinois Chicago 2010000 2019999 AMERITECH ILLINOIS G
Illinois Chicago 2020000 2020999 AMERITECH ILLINOIS G
Illinois Chicago 2021000 2021999 AMERITECH ILLINOIS G
Illinois Chicago 2022000 2022999 VERIZON WIRELESS-IL M
Illinois Chicago 2023000 2023999 ACCESS ONE INC IL G
Illinois Chicago 2024000 2024999 AMERITECH ILLINOIS G
Illinois Chicago 2025000 2025999 AMERITECH ILLINOIS G
Illinois Chicago 2026000 2026999 AMERITECH ILLINOIS G
Illinois Chicago 2027000 2027999 AMERITECH ILLINOIS G
Illinois Chicago 2028000 2028999 AMERITECH ILLINOIS G
Illinois Chicago 2029000 2029999 AMERITECH ILLINOIS G
Illinois Chicago 2030000 2039999 NEW CINGULAR WRLS IL M
Illinois Chicago 2040000 2040999 AMERITECH ILLINOIS G
Illinois Chicago 2041000 2041999 AMERITECH ILLINOIS G
Illinois Chicago 2042000 2042999 AMERITECH ILLINOIS G
Illinois Chicago 2043000 2043999 AMERITECH ILLINOIS G
Illinois Chicago 2044000 2044999 AMERITECH ILLINOIS G
Illinois Chicago 2045000 2045999 AMERITECH ILLINOIS G
Illinois Chicago 2046000 2046999 XO ILLINOIS INC. G
Illinois Chicago 2047000 2047999 XO ILLINOIS INC. G
Illinois Chicago 2048000 2048999 XO ILLINOIS INC. G
Illinois Chicago 2049000 2049999 VERIZON WIRELESS-IL M
Illinois Chicago 2050000 2059999 ALLEGIANCE TELCOM IL G
Illinois Chicago 2060000 2069999 NEW CINGULAR WRLS IL M
Illinois Chicago 2070000 2070999 AMERITECH ILLINOIS G
Illinois Chicago 2071000 2071999 AMERITECH ILLINOIS G
Illinois Chicago 2072000 2072999 AMERITECH ILLINOIS G
Illinois Chicago 2073000 2073999 AMERITECH ILLINOIS G
Illinois Chicago 2074000 2074999 AMERITECH ILLINOIS G
Illinois Chicago 2075000 2075999 AMERITECH ILLINOIS G
Illinois Chicago 2076000 2076999 AMERITECH ILLINOIS G
Illinois Chicago 2077000 2077999 AMERITECH ILLINOIS G
Illinois Chicago 2078000 2078999 AMERITECH ILLINOIS G
Illinois Chicago 2079000 2079999 NEW CINGULAR WRLS IL M
Illinois Chicago 2080000 2089999 NEW CINGULAR WRLS IL M
Illinois Chicago 2120000 2120999 LEVEL 3 COMM - IL G
Illinois Chicago 2121000 2121999 AMERITECH ILLINOIS G
Illinois Chicago 2122000 2122999 AMERITECH ILLINOIS G
Illinois Chicago 2123000 2123999 LEVEL 3 COMM - IL G
Illinois Chicago 2124000 2124999 XO ILLINOIS INC. G
Illinois Chicago 2125000 2125999 XO ILLINOIS INC. G
Illinois Chicago 2126000 2126999 AMERITECH ILLINOIS G
Illinois Chicago 2127000 2127999 XO ILLINOIS INC. G
Illinois Chicago 2128000 2128999 LEVEL 3 COMM - IL G
Illinois Chicago 2129000 2129999 WOW INTN CABL PHONE G
Illinois Chicago 2130000 2139999 NEW CINGULAR WRLS IL M
Illinois Chicago 2140000 2149999 AMERITECH ILLINOIS G
Illinois Chicago 2160000 2160999 BANDWIDTH.COM - IL G
Illinois Chicago 2161000 2161999 FIRST COMM LLC - IL G
Illinois Chicago 2162000 2162999 ACCESS ONE INC IL G
Illinois Chicago 2163000 2163999 OVATION COMM - IL G
Illinois Chicago 2164000 2164999 OVATION COMM - IL G
Illinois Chicago 2165000 2165999 OVATION COMM - IL G
Illinois Chicago 2166000 2166999 OVATION COMM - IL G
Illinois Chicago 2167000 2167999 T-MOBILE USA INC. M
Illinois Chicago 2168000 2168999 PAETEC COMM - IL G
Illinois Chicago 2169000 2169999 NEW CINGULAR WRLS IL M
Illinois Chicago 2170000 2170999 SPRINT SPECTRUM LP M
Illinois Chicago 2171000 2171999 SPRINT SPECTRUM LP M
Illinois Chicago 2172000 2172999 SPRINT SPECTRUM LP M
Illinois Chicago 2173000 2173999 SPRINT SPECTRUM LP M
Illinois Chicago 2174000 2174999 SPRINT SPECTRUM LP M
Illinois Chicago 2175000 2175999 SPRINT SPECTRUM LP M
Illinois Chicago 2176000 2176999 SPRINT SPECTRUM LP M
Illinois Chicago 2177000 2177999 SPRINT SPECTRUM LP M
Illinois Chicago 2178000 2178999 SPRINT SPECTRUM LP M
Illinois Chicago 2179000 2179999 SPRINT SPECTRUM LP M
Illinois Chicago 2180000 2189999 NEW CINGULAR WRLS IL M
Illinois Chicago 2190000 2190999 NEW CINGULAR WRLS IL M
Illinois Chicago 2191000 2191999 NEW CINGULAR WRLS IL M
Illinois Chicago 2192000 2192999 BANDWIDTH.COM - IL G
Illinois Chicago 2193000 2193999 BANDWIDTH.COM - IL G
Illinois Chicago 2194000 2194999 BANDWIDTH.COM - IL G
Illinois Chicago 2195000 2195999 BANDWIDTH.COM - IL G
Illinois Chicago 2196000 2196999 CHOICE ONE COMM IL G
Illinois Chicago 2197000 2197999 TELEPORT COMM AM-IL G
Illinois Chicago 2198000 2198999 LEVEL 3 COMM - IL G
Illinois Chicago 2199000 2199999 LEVEL 3 COMM - IL G
Illinois Chicago 2200000 2200999 AMERITECH ILLINOIS G
Illinois Chicago 2201000 2201999 AMERITECH ILLINOIS G
Illinois Chicago 2202000 2202999 AMERITECH ILLINOIS G
Illinois Chicago 2203000 2203999 AMERITECH ILLINOIS G
Illinois Chicago 2204000 2204999 AMERITECH ILLINOIS G
Illinois Chicago 2205000 2205999 AMERITECH ILLINOIS G
Illinois Chicago 2206000 2206999 AMERITECH ILLINOIS G
Illinois Chicago 2207000 2207999 AMERITECH ILLINOIS G
Illinois Chicago 2208000 2208999 AMERITECH ILLINOIS G
Illinois Chicago 2209000 2209999 AMERITECH ILLINOIS G
Illinois Chicago 2210000 2210999 SPRINT SPECTRUM LP M
Illinois Chicago 2211000 2211999 SPRINT SPECTRUM LP M
Illinois Chicago 2212000 2212999 SPRINT SPECTRUM LP M
Illinois Chicago 2213000 2213999 SPRINT SPECTRUM LP M
Illinois Chicago 2214000 2214999 SPRINT SPECTRUM LP M
Illinois Chicago 2215000 2215999 SPRINT SPECTRUM LP M
Illinois Chicago 2216000 2216999 SPRINT SPECTRUM LP M
Illinois Chicago 2217000 2217999 SPRINT SPECTRUM LP M
Illinois Chicago 2218000 2218999 SPRINT SPECTRUM LP M
Illinois Chicago 2219000 2219999 SPRINT SPECTRUM LP M
Illinois Chicago 2220000 2229999 AMERITECH ILLINOIS G
Illinois Chicago 2230000 2239999 AMERITECH ILLINOIS G