| FULL NAME | GEOLOC | CODE | AREA CODE | SUBAREA CODE | STATE COUNTRY | GEOREF CODE | LATITUDE | LONGITUDE |
| I G FARBEN BLDG FKT | IGFBNBDG | GE | 4 | GERMY | LHRD | 500700N | 0084000E | |
| IBARAKI | IBARAKI | JA | 7 | JAPAN | LGYH | 343500N | 1332500E | |
| ICHIGAYA | ICHIGAYA | JA | 7 | JAPAN | LGZX | 354200N | 1394400E | |
| ICHON | ICHEON | KS | 7 | KORES | LHBB | 371620N | 1272700E | |
| IDAHO FALLS | IDAHFLLS | 16 | 1 | F | IDA | LHGZ | 433000N | 1120100W |
| IDAR OBERSTEIN | IDROBRSN | GE | 4 | GERMY | LHKG | 494200N | 0071800E | |
| IDENHEIM ANNEX | IDENHEIM | GE | 4 | GERMY | LHLZ | 495400N | 0063400E | |
| IDONG | IDONG | KS | 7 | KORES | LHND | 380150N | 1272200E | |
| IGNACIO | IGNACIO | 06 | 1 | G | CAL | LHTW | 380413N | 1223215W |
| IGNOT ISLAND | IGNOT I | 02 | 9 | ALS | LHUS | 605000N | 1485900W | |
| IGUASSU FALLS | IGSSFLLS | BR | 1 | BRAZL | 254100S | 0542600W | ||
| IKEGO | IKEGO | JA | 7 | JAPAN | LHWE | 351800N | 1393600E | |
| ILIAMNA LAKE | ILIAMNAL | 02 | 9 | ALS | LJBD | 593000N | 1550000W | |
| ILIZDA | ILIZDA | BK | 4 | BOSNI | 9999999 | 99999999 | ||
| ILLESHEIM | ILLESHEM | GE | 4 | GERMY | FWHA | 492826N | 0102319E | |
| IMMENDINGEN | IMMNDNGN | GE | 4 | GERMY | LJJD | 475500N | 0084300E | |
| IMPERIAL BEACH | IMPRLBCH | 06 | 1 | H | CAL | LJQA | 323200N | 1170700W |
| INCHON | INCHON | KS | 7 | KORES | LJWC | 372800N | 1263700E | |
| INCIRLIK | INCIRLIK | TU | 5 | TURKY | LJYC | 370004N | 0352532E | |
| INDEPENDENCE | INDPNDNC | 29 | 1 | D | MO | LKEV | 390400N | 0942700W |
| INDEPENDENCE | INDPNDNC | 06 | 1 | G | CAL | LJZP | 364800N | 1181200W |
| INDEPENDENCE | INDPNDNC | 20 | 1 | D | KAN | LKCM | 371327N | 0954229W |
| INDEPENDENT HILL | INDPNDNT | 51 | 1 | B | VIR | LKJZ | 363800N | 0811100W |
| INDIAN | INDIAN | 02 | 9 | ALS | LKLS | 610000N | 1493400W | |
| INDIAN HARBOUR | INDNHRBR | CA | 2 | NWFLD | LKMC | 534800N | 0570100W | |
| INDIAN HEAD | INDIANHD | 24 | 1 | B | MLD | LKLZ | 381200N | 0770800W |
| INDIAN MOUNTAIN AIR FORCE STATION | INDNMTNA | 02 | 9 | ALS | 660400N | 1534100W | ||
| INDIAN RIVER | INDIANRV | 10 | 1 | B | DEL | 383604N | 0750306W | |
| INDIAN SPRINGS | INDINSPR | 32 | 1 | G | NEV | LKTH | 363500N | 1154100W |
| INDIANA | INDIANA | 18 | 1 | D | IND | 382648N | 0854000W | |
| INDIANA | INDIANA | 42 | 1 | B | PENN | LLDM | 403700N | 0791000W |
| INDIANAPOLIS | INDINPLS | 18 | 1 | D | IND | LLFQ | 394606N | 0860929W |
| INDIANOLA | INDIANOL | 28 | 1 | C | MISS | LLHU | 332500N | 0904000W |
| INDIANTOWN GAP | INDNTWGP | 42 | 1 | B | PENN | LLKY | 401200N | 0764500W |
| INFANTA | INFANTA | RP | 7 | PHILI | 143830N | 1223800E | ||
| INGLESIDE | INGLESID | 48 | 1 | E | TEX | LLXC | 275209N | 0971207W |
| INGLEWOOD | INGLEWOD | 06 | 1 | H | CAL | LLXY | 335500N | 1182200W |
| INGOLSTADT | INGLSTDT | GE | 4 | GERMY | 484290N | 0113210E | ||
| INKSTER | INKSTER | 26 | 1 | D | MICH | LMDV | 421908N | 0831603W |
| INTERNATIONAL FALLS | INTNTNLF | 27 | 1 | D | MINN | LMQH | 483800N | 0932400W |
| INVERNESS | INVERNSS | 12 | 1 | C | FLA | LMSH | 285100N | 0822100W |
| INVERNESS | INVERNSS | UK | 3 | UNKIN | LMSQ | 573225N | 0040255W | |
| IOWA CITY | IOWA CY | 19 | 1 | D | IOWA | LNGM | 413940N | 0913148W |
| IPSWICH | IPSWICH | UK | 3 | UNKIN | LNRR | 520500N | 0011000E | |
| IQUITOS | IQUITOS | PE | 1 | PERU | 035100S | 0731300W | ||
| IRAKLION | IRAKLION | GR | 5 | GREEC | LNVZ | 352000N | 0251100E | |
| IRON MOUNTAIN | IRON MTN | 26 | 1 | D | MICH | LPDZ | 455000N | 0880400W |
| IRONTON | IRONTON | 39 | 1 | B | OHIO | LPHX | 383200N | 0824100W |
| IRONWOOD | IRONWOOD | 26 | 1 | D | MICH | LPKZ | 462400N | 0863900W |
| IRUMA | IRUMA | JA | 7 | JAPAN | LPNK | 355000N | 1392500E | |
| IRVINE | IRVINE | 06 | 1 | H | CAL | LPNH | 334012N | 1174924W |
| IRVING | IRVING | 48 | 1 | E | TEX | LPNX | 324809N | 0965604W |
| IRVINGTON | IRVINGTN | 34 | 1 | A | N J | LPRF | 404400N | 0741400W |
| IRWOLSAN | IRWOLSAN | KS | 7 | KORES | 364400N | 1291000E | ||
| ISAAC NEWTON SQUARE RESTON | ISCNWTNS | 51 | 1 | B | VIR | 385500N | 0772100W | |
| ISABELA | ISABELA | RQ | 1 | PUERT | LPVJ | 183000N | 0670100W | |
| ISKENDERUN | ISKENDRN | TU | 5 | TURKY | LQCJ | 363429N | 0360909E | |
| ISLA DE MARGARITA | I MARGRT | VE | 1 | VENEZ | 110600N | 0655500W | ||
| ISLA GRANDE | ISLA GR | RQ | 1 | PUERT | 182732N | 0660610W | ||
| ISLAMABAD | ISLAMABD | PK | 6 | PAKIS | LQHR | 334000N | 0731000E | |
| ISLAMORADA | ISLAMORD | 12 | 1 | C | FLA | LPZP | 245600N | 0803700W |
| ISLAVERDE | ISLAVERD | RQ | 1 | PUERT | LQGQ | 182700N | 0660000W | |
| ISLIP | ISLIP | 36 | 1 | A | N Y | LQLQ | 404400N | 0731200W |
| ISTANBUL | ISTANBUL | TU | 5 | TURKY | LQQV | 410500N | 0285000E | |
| ISTRES-LE-TUBE | ISTRES | FR | 4 | FRANC | LQUD | 433120N | 0045529E | |
| ITHACA | ITHACA | 36 | 1 | A | N Y | LRBR | 422600N | 0762000W |
| IUKA | IUKA | 28 | 1 | C | MISS | LRDL | 344900N | 0881100W |
| IWAKUNI | IWAKUNI | JA | 7 | JAPAN | LRFR | 341000N | 1320900E | |
| IZMIR | IZMIR | TU | 5 | TURKY | LRMC | 382500N | 0271000E | |
| IZMIT | IZMIT | TU | 5 | TURKY | JZAA | 404548N | 0300024E |