| Port Code | Port Name | Country |
| ITIDG | Isola del Giglio | Italy |
| ITIGL | Savigliano | Italy |
| ITIIO | San Gillio | Italy |
| ITIML | Imola | Italy |
| ITIMP | Imperia | Italy |
| ITINO | Induno Olona | Italy |
| ITINV | Invorio | Italy |
| ITIOA | Civitanova Marche | Italy |
| ITIOB | Baiso | Italy |
| ITIOE | Issogne | Italy |
| ITIRZ | Isola Rizza | Italy |
| ITISE | Isernia | Italy |
| ITISH | Ischia | Italy |
| ITISI | Cinisi | Italy |
| ITISO | Ortonova, Isola | Italy |
| ITISP | Ispica | Italy |
| ITISS | Isola Santo Stefano | Italy |
| ITIST | Istrana | Italy |
| ITIVR | Ivrea | Italy |
| ITJCO | Jerago con Orago | Italy |
| ITJES | Jesi | Italy |
| ITJLO | Jesolo | Italy |
| ITJZU | Jerzu | Italy |
| ITKAT | Catona | Italy |
| ITLAA | Laterina | Italy |
| ITLAC | Lacedonia | Italy |
| ITLAD | Ladispoli | Italy |
| ITLAG | Lagonegro | Italy |
| ITLAM | La Morra | Italy |
| ITLAN | Lanciole di Piteglio | Italy |
| ITLAO | Legnago | Italy |
| ITLAQ | L'Aquila | Italy |
| ITLAR | Larderello | Italy |
| ITLBA | Alba | Italy |
| ITLBD | Lombardore | Italy |
| ITLCC | Lecce | Italy |
| ITLCG | Lucignano | Italy |
| ITLCI | Lanciano | Italy |
| ITLCO | Lecco | Italy |
| ITLCV | Lucca | Italy |
| ITLDC | Solignano Nuovo-Castelvetro di Modena | Italy |
| ITLDI | Lodi | Italy |
| ITLDO | Landriano | Italy |
| ITLDS | Limidi Di Soliera | Italy |
| ITLDV | Lugo di Vicenza | Italy |
| ITLEE | Levate | Italy |
| ITLEI | Leinì | Italy |
| ITLET | Casaletto Lodigiano | Italy |
| ITLEU | Leumann | Italy |
| ITLEV | Levanzo | Italy |
| ITLFF | Leffe | Italy |
| ITLGE | Longarone | Italy |
| ITLGG | Celle Ligure | Italy |
| ITLGN | Legnano | Italy |
| ITLGO | Lancenigo | Italy |
| ITLGR | Legnaro | Italy |
| ITLIA | Loiano | Italy |
| ITLIB | Lizzano in Belvedere | Italy |
| ITLIC | Licata | Italy |
| ITLIM | Limito | Italy |
| ITLIN | Linate Apt/Milano | Italy |
| ITLIP | Lipari | Italy |
| ITLIS | Liscate | Italy |
| ITLIU | Linosa | Italy |
| ITLIV | Livorno | Italy |
| ITLJB | Lastra a Signa | Italy |
| ITLKT | Lunata | Italy |
| ITLLE | Collevecchio | Italy |
| ITLLO | Lallio | Italy |
| ITLMA | Limena | Italy |
| ITLMB | Limbiate | Italy |
| ITLMD | Limiti | Italy |
| ITLMO | Lamporecchio | Italy |
| ITLMP | Lampedusa | Italy |
| ITLMS | San Marco in Lamis | Italy |
| ITLMZ | Lomazzo | Italy |
| ITLNG | Longiano | Italy |
| ITLNO | Lariano | Italy |
| ITLOP | Lonate Pozzolo | Italy |
| ITLOZ | Lozza | Italy |
| ITLPP | Lonate Ceppino | Italy |
| ITLRG | Loreggia | Italy |
| ITLRV | Lovara | Italy |
| ITLSA | Limite sull'Arno | Italy |
| ITLSK | Lisiko | Italy |
| ITLSN | Latisana | Italy |
| ITLSO | Lissone | Italy |
| ITLSS | Lentate sul Seveso | Italy |
| ITLTA | Lastra | Italy |
| ITLTE | Lainate | Italy |
| ITLTH | Luttach | Italy |
| ITLTN | Latina | Italy |
| ITLTZ | Locate di Triulzi | Italy |
| ITLUG | Lugo | Italy |
| ITLUI | Luino | Italy |
| ITLUR | Ca' di Lugo | Italy |
| ITLUZ | Lauzacco | Italy |
| ITLVE | Laives | Italy |
| ITLVR | Lovere | Italy |
| ITLZA | Luzzara | Italy |