33:
88:
in 1947, the state of
Illinois was divided into four numbering plan areas (NPAs). They were generally laid out as a region in and around Chicago, a northern band outside Chicago, and two bands in the central and southern parts of the state. 815 was assigned to the northern band outside Chicago as one
96:
After
September 1956, the 815 numbering plan area was divided roughly in half along a north-westerly to south-easterly running line. Area code 309 was created by merging the western part of 815, including the Illinois side of the Quad Cities, with the northern portion of
63:
area and some of
Chicago’s western and northwestern suburbs. 815 was one of the four original Illinois area codes set up in 1947. Area code 779 was assigned to the same numbering plan area in 2009 to form an
1694:
1689:
1370:
1650:
1704:
105:
in the middle position of the code. It was the only new area code created in
Illinois between 1947 and the 1989 creation of
560:
220:
90:
1317:
1699:
1436:
48:
17:
640:
1375:
1347:
1217:
1172:
465:
101:. The new area code was one of the first area codes not serving an entire state, but having the digit
1197:
1005:
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81:
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1342:
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85:
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8:
1352:
1332:
1157:
1055:
1010:
890:
815:
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360:
285:
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235:
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180:
77:
1408:
1297:
1227:
1222:
1212:
1207:
1202:
1187:
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1152:
1147:
1137:
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185:
1357:
1337:
1302:
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1237:
1232:
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1142:
1112:
1097:
1077:
1045:
1025:
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920:
875:
840:
830:
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52:
1398:. American Telephone and Telegraph Company. September 1956. p. Sec II-App A-1.
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1020:
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910:
895:
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855:
835:
745:
725:
705:
685:
620:
570:
555:
515:
510:
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480:
430:
425:
415:
390:
385:
370:
335:
290:
240:
175:
165:
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140:
60:
1267:
930:
915:
845:
785:
755:
610:
490:
435:
380:
350:
305:
265:
230:
135:
985:
975:
900:
710:
635:
410:
340:
1683:
1665:
1652:
1640:
1636:
1632:
1628:
1624:
1609:
1605:
1597:
1593:
1570:
1566:
1514:
1501:
1484:
1472:
1456:
700:
106:
98:
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beginning on
February 17, 2007. A month later, area code 779 was activated.
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56:
32:
1562:
44:
1444:
1589:
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with the new area code 779, all calls from the 815 area
1695:Telecommunications-related introductions in 2007
1690:Telecommunications-related introductions in 1947
1681:
1371:List of North American Numbering Plan area codes
1429:Area Code Overlay Approved for 815 Area Code
1442:
80:(AT&T) created the first nationwide
78:American Telephone and Telegraph Company
31:
14:
1682:
118:needed to be dialed with an area code
24:
91:original North American area codes
25:
1716:
1417:
1424:NANPA area code map of Illinois
1705:Area codes in the United States
123:
1402:
1388:
13:
1:
1381:
49:North American Numbering Plan
7:
1431:- general information from
1376:List of Illinois area codes
1364:
10:
1721:
71:
59:areas. It also serves the
1619:
1588:
1561:
1557:
1544:
1542:
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1396:Notes on Distance Dialing
1409:History of area code 309
82:telephone numbering plan
36:All NPAs within Illinois
1666:40.195659°N 89.516602°W
1700:Area codes in Illinois
41:Area codes 815 and 779
37:
1671:40.195659; -89.516602
112:In preparation of an
86:Operator Toll Dialing
35:
27:Telephone area codes
1662: /
1487:
51:(NANP) for most of
1443:
38:
1646:
1645:
1439:for the area code
1348:Wonder Lake (CDP)
1218:Sun River Terrace
53:northern Illinois
16:(Redirected from
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1173:South Wilmington
466:Frankfort Square
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1198:Stillman Valley
1006:Preston Heights
681:Lakewood Shores
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1418:External links
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356:Davis Junction
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43:are telephone
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1328:Wilton Center
1326:
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1308:West Brooklyn
1306:
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1283:Waddams Grove
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1183:Spring Valley
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1001:Prairie Grove
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866:Mount Carroll
864:
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851:Monroe Center
849:
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822:
821:Milledgeville
819:
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791:McCullom Lake
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581:Holiday Hills
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506:German Valley
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401:East Brooklyn
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331:Crystal Lawns
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276:Cherry Valley
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221:Buffalo Grove
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107:area code 708
104:
100:
99:area code 217
94:
92:
87:
83:
79:
69:
67:
62:
58:
54:
50:
46:
42:
34:
30:
19:
18:Area code 815
1647:
1623:area codes:
1592:area codes:
1565:area codes:
1545:
1524:
1519:
1510:
1493:
1476:
1447:area codes:
1404:
1395:
1390:
1178:Spring Grove
1168:South Beloit
1118:Scales Mound
1070:
1016:Prophetstown
996:Poplar Grove
956:Paynes Point
871:Mount Morris
661:Lake Holiday
606:Ingalls Park
601:Hopkins Park
521:Grand Detour
451:Flagg Center
406:East Dubuque
326:Crystal Lake
124:Service area
114:overlay plan
111:
102:
95:
75:
55:outside the
40:
39:
29:
1669: /
1343:Wonder Lake
936:Orangeville
906:North Utica
886:New Milford
526:Grand Ridge
296:Coltonville
251:Cedar Point
246:Carbon Hill
226:Bull Valley
211:Brush Point
191:Bourbonnais
171:Baileyville
146:Apple River
57:Quad Cities
1684:Categories
1657:89°31′00″W
1654:40°11′44″N
1382:References
1318:Wilmington
1273:Union Hill
1263:Troy Grove
1243:Timberlane
1088:Romeoville
1061:Rock Falls
981:Plainfield
966:Pecatonica
961:Pearl City
826:Millington
781:Marseilles
771:Maple Park
741:Loves Park
721:Lindenwood
696:Leaf River
586:Homer Glen
531:Grant Park
366:Deer Grove
316:Crest Hill
256:Cedarville
216:Buckingham
196:Braceville
156:Aroma Park
89:of the 86
45:area codes
1563:Wisconsin
1353:Woodstock
1333:Winnebago
1158:Shorewood
1056:Rock City
1011:Princeton
891:New Lenox
816:Millbrook
806:Menominee
761:Manhattan
616:Johnsburg
591:Hillcrest
541:Greenwood
536:Granville
461:Frankfort
456:Forreston
421:Elizabeth
396:Earlville
361:Daysville
286:Coal City
271:Channahon
236:Caledonia
206:Braidwood
181:Belvidere
76:When the
1445:Illinois
1433:AT&T
1365:See also
1298:Waterman
1228:Symerton
1223:Sycamore
1213:Sublette
1208:Streator
1203:Stockton
1188:Sterling
1163:Somonauk
1153:Shirland
1148:Sheridan
1138:Shabbona
1108:Sandwich
1103:St. Anne
1072:Rockford
1066:Rockdale
1051:Rochelle
1041:Ringwood
1031:Richmond
861:Morrison
731:Lockport
676:Lakewood
671:Lakemoor
656:Kirkland
646:Kingston
631:Kankakee
596:Hinckley
576:Herscher
561:Harrison
476:Freeport
446:Fairmont
441:Fairdale
346:Danforth
311:Cortland
261:Chadwick
186:Bonfield
1614:812/930
1602:317/463
1590:Indiana
1583:920/274
1579:715/534
1575:608/353
1554:217/447
1550:309/861
1537:708/464
1533:630/331
1529:847/224
1520:779/815
1498:608/353
1481:847/224
1477:815/779
1469:708/464
1465:618/730
1461:630/331
1453:309/861
1449:217/447
1358:Woosung
1338:Winslow
1303:Watseka
1258:Triumph
1238:Thomson
1233:Tampico
1193:Steward
1143:Shannon
1113:Savanna
1098:Rutland
1078:Rockton
1046:Ritchie
1026:Reddick
991:Pontiac
971:Peotone
951:Paw Paw
921:Oglesby
876:Naplate
841:Momence
831:Minooka
811:Meriden
801:Mendota
796:McHenry
776:Marengo
766:Manteno
736:Lostant
716:Leonore
691:LaSalle
651:Kinsman
626:Kangley
566:Harvard
551:Hanover
546:Haldane
501:Gardner
376:Diamond
321:Creston
301:Compton
281:Clifton
201:Bradley
131:Adeline
72:History
66:overlay
47:in the
1435:, the
1323:Wilton
1313:Wenona
1293:Warren
1288:Walnut
1278:Verona
1253:Tonica
1248:Toluca
1133:Seward
1128:Serena
1123:Seneca
1093:Roscoe
1083:Rodden
1036:Ridott
1021:Ransom
946:Ottawa
941:Oregon
926:Onarga
911:Norway
896:Newark
881:Nelson
856:Morris
836:Mokena
746:Lyndon
726:Lisbon
706:Leland
686:Lanark
621:Joliet
571:Hebron
556:Harmon
516:Godley
511:Gilman
486:Galena
481:Fulton
431:Esmond
426:Elwood
416:Eleroy
391:Dwight
386:Durand
371:DeKalb
336:Dakota
291:Coleta
241:Capron
176:Ballou
166:Ashton
161:Ashkum
151:Argyle
141:Andres
61:Joliet
1546:South
1494:North
1268:Union
931:Oneco
916:Odell
846:Monee
786:Mazon
756:Malta
641:Kings
611:Irwin
491:Genoa
436:Essex
381:Dixon
351:Davis
306:Coral
266:Chana
231:Byron
136:Amboy
1621:Iowa
1525:East
1511:West
1437:RBOC
986:Polo
976:Peru
901:Nora
711:Lena
636:Kent
411:Egan
341:Dana
84:for
1641:712
1637:641
1633:563
1629:515
1625:319
1610:765
1606:574
1598:260
1594:219
1571:414
1567:262
1515:563
1502:262
1485:872
1473:773
1457:312
701:Lee
1686::
1639:,
1635:,
1631:,
1627:,
1612:,
1608:,
1604:,
1600:,
1596:,
1581:,
1577:,
1573:,
1569:,
1552:,
1548::
1535:,
1531:,
1527::
1513::
1500:,
1496::
1483:,
1479:,
1475:,
1471:,
1467:,
1463:,
1459:,
1455:,
1451:,
109:.
93:.
68:.
103:0
20:)
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