{ "url": "https://phonelookup.dev/prefix/us-563", "npa": "563", "slug": "us-563", "iso": "US", "country": "United States", "regions": [ { "code": "IA", "name": "Iowa", "exchanges": 411 } ], "exchanges": 411, "known": 388, "byLineType": { "fixed_line": 229, "mobile": 104, "unknown": 23, "voip": 55 }, "carriers": [ { "name": "Lumen", "exchanges": 71, "byLineType": { "fixed_line": 68, "voip": 3 }, "ranges": [ "206", "214", "217–218", "236", "240–244", "259", "262–266", "268–270", "272–274", "284", "288", "322–324", "326–328", "332–333", "336", "344", "351", "355", "359", "381–383", "386–388", "391", "421–422", "441", "445", "449", "459", "468", "521", "538", "552", "556–557", "562", "565", "568", "582–585", "587–589", "652", "742", "864", "884", "888" ] }, { "name": "Windstream", "exchanges": 60, "byLineType": { "fixed_line": 60 }, "ranges": [ "224", "228", "230", "237–238", "253", "275", "289", "303", "313", "315", "339", "363", "425", "428–429", "482", "522", "547", "566", "569", "578", "633", "635", "637", "649", "655", "659", "674", "677", "687", "724", "744", "767", "774", "776", "778", "785", "853", "855–856", "870", "872", "875–876", "886", "893", "921–928", "932–933", "944–946" ] }, { "name": "UScellular", "exchanges": 33, "byLineType": { "mobile": 33 }, "ranges": [ "210", "212", "221", "226", "229", "231", "234", "247–248", "250–251", "254", "256", "260", "320", "329", "331", "341", "349", "357", "370", "379–380", "513", "542–543", "590", "599", "608", "794", "880", "920", "949" ] }, { "name": "T-Mobile", "exchanges": 26, "byLineType": { "mobile": 26 }, "ranges": [ "213", "307", "318", "366", "396", "495", "503", "505–506", "516–518", "528–529", "537", "554", "559", "564", "570–571", "579", "593", "650", "676", "772", "889" ] }, { "name": "AT&T", "exchanges": 24, "byLineType": { "fixed_line": 6, "mobile": 18 }, "ranges": [ "207", "215", "232", "258", "280", "298", "310", "312", "314", "317", "330", "338", "352–353", "451", "499", "508–509", "549", "607", "613", "639", "663", "845" ] }, { "name": "Verizon", "exchanges": 21, "byLineType": { "fixed_line": 3, "mobile": 18 }, "ranges": [ "201–203", "209", "216", "222", "235", "249", "271", "299", "321", "340", "343", "419", "580–581", "605", "770", "777", "929", "940" ] }, { "name": "Onvoy", "exchanges": 15, "byLineType": { "voip": 15 }, "ranges": [ "208", "276", "278", "281", "291", "293", "297", "444", "594", "657", "661", "666", "723", "726", "800" ] }, { "name": "MCC Telephony", "exchanges": 12, "byLineType": { "fixed_line": 12 }, "ranges": [ "220", "223", "227", "239", "308", "424", "486", "651", "694", "729", "849", "934" ] }, { "name": "Ton80 Communications", "exchanges": 12, "byLineType": { "voip": 12 }, "ranges": [ "342", "446", "453", "466", "478", "624", "626", "644", "746", "832", "837", "972" ] }, { "name": "Fractel", "exchanges": 11, "byLineType": { "voip": 11 }, "ranges": [ "348", "356", "400", "465", "500", "600", "758", "766", "842", "877", "900" ] }, { "name": "Ace Communications Group", "exchanges": 10, "byLineType": { "fixed_line": 10 }, "ranges": [ "423", "497", "532", "534–535", "544", "546", "567", "586", "745" ] }, { "name": "Mcc Telephony", "exchanges": 9, "byLineType": { "fixed_line": 9 }, "ranges": [ "233", "277", "358", "412", "454", "683", "725", "764", "822" ] }, { "name": "Alpine Communications", "exchanges": 6, "byLineType": { "fixed_line": 6 }, "ranges": [ "245", "252", "255", "426", "873", "964" ] }, { "name": "Airus Inc", "exchanges": 5, "byLineType": { "fixed_line": 5 }, "ranges": [ "279", "287", "292", "294", "334" ] }, { "name": "Emergency Networks", "exchanges": 5, "byLineType": { "mobile": 5 }, "ranges": [ "200", "477", "540", "550", "560" ] }, { "name": "F & B Communications", "exchanges": 5, "byLineType": { "fixed_line": 5 }, "ranges": [ "246", "374", "574", "890", "941" ] }, { "name": "Bandwidth.com", "exchanges": 4, "byLineType": { "voip": 4 }, "ranges": [ "219", "447", "484", "748" ] }, { "name": "Central Scott Telephone", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "225", "282", "285" ] }, { "name": "Mabel Cooperative Telephone Company", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "496", "735", "737" ] }, { "name": "Northeast Iowa Telephone Company", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "536", "539", "783" ] }, { "name": "Paetec Itel", "exchanges": 3, "byLineType": { "fixed_line": 3 }, "ranges": [ "519", "690", "823" ] }, { "name": "CS Technologies", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "316", "345" ] }, { "name": "Cascade Communications Company", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "686", "852" ] }, { "name": "Dish Wireless", "exchanges": 2, "byLineType": { "mobile": 2 }, "ranges": [ "346", "456" ] }, { "name": "Hawkeye Interconnect", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "290", "337" ] }, { "name": "Lost Nation-Elwood Telephone Company", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "678", "826" ] }, { "name": "Preston Telephone Company", "exchanges": 2, "byLineType": { "fixed_line": 2 }, "ranges": [ "577", "689" ] }, { "name": "TELNYX", "exchanges": 2, "byLineType": { "voip": 2 }, "ranges": [ "204", "286" ] }, { "name": "Andrew Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "672" ] }, { "name": "Baldwin-Nashville Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "673" ] }, { "name": "Bernard Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "879" ] }, { "name": "Brightlink Communications", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "362" ] }, { "name": "COMMIO LLC", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "867" ] }, { "name": "CSC Wireless LLC", "exchanges": 1, "byLineType": { "mobile": 1 }, "ranges": [ "296" ] }, { "name": "Cedar Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "942" ] }, { "name": "Center Junction Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "487" ] }, { "name": "Clarence Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "452" ] }, { "name": "Comcast", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "205" ] }, { "name": "Dixon Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "843" ] }, { "name": "Exiant", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "300" ] }, { "name": "Grand Mound Cooperative Telephone Association", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "847" ] }, { "name": "HD Carrier", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "283" ] }, { "name": "Harmony Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "883" ] }, { "name": "Hawkeye Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "427" ] }, { "name": "IP Horizon", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "306" ] }, { "name": "ImOn Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "261" ] }, { "name": "La Motte Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "773" ] }, { "name": "Louisa Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "999" ] }, { "name": "Mechanicsville Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "432" ] }, { "name": "Miles Cooperative Telephone Association", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "682" ] }, { "name": "NEIT SERVICES", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "863" ] }, { "name": "Nuso", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "514" ] }, { "name": "Onslow Cooperative Telephone Association", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "485" ] }, { "name": "Spring Grove Cooperative Telephone", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "492" ] }, { "name": "Terra Nova Telecom", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "844" ] }, { "name": "Twilio International", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "895" ] }, { "name": "Vonage", "exchanges": 1, "byLineType": { "voip": 1 }, "ranges": [ "526" ] }, { "name": "WTC Communications", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "732" ] }, { "name": "Wavenation", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "257" ] }, { "name": "Wide Voice", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "551" ] }, { "name": "Wyoming Mutual Telephone Company", "exchanges": 1, "byLineType": { "fixed_line": 1 }, "ranges": [ "488" ] } ], "grid": "mfmmvvvmvfmummvmmffvfmffffmffmfmffmmfffffffffffmmmmmffmfmfmfmffffff-fffmffffvfvffvfvffvffffvfvf-mvmmv--f--vmfumumfmffmmummfff-fffmmmfff-ffmfmmvmffm-vm-fmm-fvmff--mf--m---m---f----mmfff--fff--f----m---v----------uf------m-fffffffff--f--------f--vfvv-f-ffvf-m--f-----vv-f--------mv---f-vffff---f--mff-fv--m-mm-mm-u-mfummmf-vf---v-mm--f-fffmffm-mmf-ff-fmff-muff-mm-fumfffffmm--f--ffmmmffffffffm--mv----mv----m-mm--u-m----------v-v------f-f-f-m-u--v----fmff--f-v-f-v-m--v-----fff-mff---ff--ff-ff---f-----u----------uu----------vffv--f--f--f-f----f-ffv-v---------v-----f-vf--m-mff-fmfu---f-f--------m-----v----------u---u------ff--f-----v----v----vfvf-f-f--ff-ff------ff--v--f-ff-ffv-fm--ff-f-fmf--f-v----v----------u--------mffffffffm--fff-----mff-fff--mu-------uu----f-------v---u-----------u----------f", "patterns": { "all": "^\\+1563[2-9]\\d{6}$", "fixed_line": "^\\+1563(?:2(?:0[19]|1[78]|2[02-578]|3[0236-9]|4[0-6]|5[23579]|6[1-689]|7[02-579]|8[02457-9]|9[024])|3(?:0[38]|1[356]|2[2-46-8]|3[2-4679]|4[45]|5[1589]|63|74|8[1-36-8]|91)|4(?:[13]2|2[1-9]|4[159]|5[1249]|68|8[25-8]|9[2679])|5(?:1[49]|22|3[24-689]|4[4679]|5[1267]|6[25-9]|7[478]|8[2-9])|6(?:3[357]|49|5[1259]|7[2-478]|8[23679]|9[04])|7(?:2[459]|3[257]|4[245]|6[47]|7[3468]|8[35])|8(?:2[236]|4[3579]|5[2356]|6[34]|7[023569]|8[3468]|9[03])|9(?:2[1-8]|3[2-4]|4[124-6]|64|99))\\d{4}$", "mobile": "^\\+1563(?:2(?:0[0237]|1[02356]|2[169]|3[145]|4[7-9]|5[01468]|60|71|9[689])|3(?:07|1[02478]|2[019]|3[018]|4[01369]|5[237]|6[26]|7[09]|80|96)|4(?:19|56|77|95)|5(?:0[35689]|1[36-8]|2[89]|37|4[023]|5[049]|6[04]|7[019]|8[01]|9[039])|6(?:0[578]|[16]3|39|50|76)|7(?:7[027]|94)|88[09]|9[24][09])\\d{4}$", "voip": "^\\+1563(?:2(?:0[4-68]|1[49]|7[68]|8[136]|9[137])|3(?:0[06]|4[28]|56)|4(?:00|4[467]|53|6[56]|78|84)|5(?:00|2[16]|94)|6(?:00|2[46]|44|57|6[16])|7(?:2[36]|4[68]|58|66)|8(?:00|3[27]|4[24]|[67]7|95)|9(?:00|72))\\d{4}$" }, "sandbox": { "input": "+15635550123", "valid": true, "type": "Fixed line or mobile", "region": "US", "formats": { "e164": "+15635550123", "international": "+1 563-555-0123", "national": "(563) 555-0123", "rfc3966": "tel:+1-563-555-0123" }, "parts": { "countryCode": "+1", "destinationCode": "563", "destinationKind": "area code", "subscriber": "5550123" } }, "faq": [ { "question": "Where is area code 563?", "answer": "Area code 563 is in Iowa, in the United States: all 411 of its exchanges on record are there. From abroad it is dialled +1 563, then the seven-digit number." }, { "question": "Is a 563 number mobile or landline?", "answer": "Either: in the North American Numbering Plan the line type belongs to the exchange (the three digits after the area code), not to the area code. Of the 411 exchanges on record in 563, 104 (25%) were allocated as mobile, 229 (56%) as fixed line, 55 (13%) as VoIP and 23 (6%) have no line type on record. A number can have been ported since, to another carrier and even to another line type." }, { "question": "Which carriers have numbers in area code 563?", "answer": "61 carriers hold exchanges in 563 on record; the most: Lumen (71), Windstream (60) and UScellular (33). These are the original allocations: with number portability, a number may be served by another carrier today, which only a live carrier lookup (an HLR or MNP query) can tell." }, { "question": "How do I validate a 563 phone number?", "answer": "In E.164 a 563 number matches ^\\+1563[2-9]\\d{6}$: +1, the area code, a central office code that does not start with 0 or 1, then four digits. Written nationally it reads (563) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP." } ], "neighbours": { "sameRegion": [ "us-319", "us-515", "us-641", "us-712" ], "previous": "us-562", "next": "us-564" }, "meta": { "dataAsOf": "2026-10-25", "dataPoints": 411, "references": [ { "authority": "NANPA", "title": "North American Numbering Plan Administrator", "url": "https://nanpa.com/" }, { "authority": "CNAC", "title": "Canadian Numbering Administrator", "url": "https://www.cnac.ca/" }, { "authority": "ITU", "title": "National numbering plan: United States", "url": "https://www.itu.int/oth/T02020000DE/en" } ] } }