| I 1-D-R | I Wonder | - | ISO Country Codes |
| I&I | Intercourse & Inebriation | - | ISO Country Codes |
| I-D-L | Ideal | - | ISO Country Codes |
| I1DR | I Wonder | - | ISO Country Codes |
| IAC | In Any Case | - | ISO Country Codes |
| IAC | I Am Confused | - | ISO Country Codes |
| IAE | In Any Event | - | ISO Country Codes |
| IAITS | It's All In The Subject | - | ISO Country Codes |
| IANAC | I Am Not A Crook | - | ISO Country Codes |
| IANAE | I Am Not An Expert | - | ISO Country Codes |
| IANAL | I Am Not A Lawyer | - | ISO Country Codes |
| IASAP4U | I Always Say A Prayer For You | - | ISO Country Codes |
| IAT | I Am Tired | - | ISO Country Codes |
| IAW | I Agree With | - | ISO Country Codes |
| IAW | In Accordance With | - | ISO Country Codes |
| IAYM | I Am Your Master | - | ISO Country Codes |
| IB | In (the) Back | - | ISO Country Codes |
| IBGYBG | I'll Be Gone, You'll Be Gone | - | ISO Country Codes |
| IBIWISI | I'll Believe It When I See It | - | ISO Country Codes |
| IBK | Idiot Behind Keyboard | - | ISO Country Codes |
| IBRB | I'll Be Right Back | - | ISO Country Codes |
| IBT | In Between Technology | - | ISO Country Codes |
| IBTD | I Beg To Differ | - | ISO Country Codes |
| IBTL | In Before The Lock | - | ISO Country Codes |
| IC | I See | - | ISO Country Codes |
| IC | In Character | - | ISO Country Codes |
| ICBW | I Could Be Wrong | - | ISO Country Codes |
| ICYC | In Case You Care | - | ISO Country Codes |
| ICYC | In Case You're Curious | - | ISO Country Codes |
| ID10T | Idiot | - | ISO Country Codes |
| IDC | I Don't Care | - | ISO Country Codes |
| IDGAF | I Don't Give A F*ck | - | ISO Country Codes |
| IDGARA | I Don't Give A Rats Ass | - | ISO Country Codes |
| IDGI | I Don't Get Involved | - | ISO Country Codes |
| IDGI | I Don't Get It | - | ISO Country Codes |
| IDK | I Don't Know | - | ISO Country Codes |
| IDKY | I Don't Know You | - | ISO Country Codes |
| IDM | It Does Not Matter | - | ISO Country Codes |
| IDST | I Didn't Say That | - | ISO Country Codes |
| IDTA | I Did That Already | - | ISO Country Codes |
| IDTS | I Don't Think So | - | ISO Country Codes |
| IF | In (the) Front | - | ISO Country Codes |
| IFAB | I Found A Bug | - | ISO Country Codes |
| IFU | I F*cked Up | - | ISO Country Codes |
| IGGP | I Gotta Go Pee | - | ISO Country Codes |
| IGTP | I Get The Point | - | ISO Country Codes |
| IHA | I Hate Acronyms | - | ISO Country Codes |
| IHAIM | I Have Another Instant Message | - | ISO Country Codes |
| IHNO | I Have No Opinion | - | ISO Country Codes |
| IHTFP | I Hate This F*cking Place | - | ISO Country Codes |
| IHTFP | I Have Truly Found Paradise | - | ISO Country Codes |
| IHU | I Hear You | - | ISO Country Codes |
| IIABDFI | If It Ain't Broke, Don't Fix It | - | ISO Country Codes |
| IIIO | Intel Inside, Idiot Outside | - | ISO Country Codes |
| IIMAD | If It Makes A / Any Difference | - | ISO Country Codes |
| IIR | If I Recall | - | ISO Country Codes |
| IIR | If I Remember | - | ISO Country Codes |
| IIRC | If I Recall Correctly | - | ISO Country Codes |
| IIRC | If I Remember Correctly | - | ISO Country Codes |
| IIT | Is It Tight? | - | ISO Country Codes |
| IITLYTO | If It's Too Loud You're Too Old | - | ISO Country Codes |
| IITYWIMWYBMAD | If I Tell You What It Means Will You Buy Me A Drink? | - | ISO Country Codes |
| IITYWYBMAD | If I Tell You Will You Buy Me A Drink? | - | ISO Country Codes |
| IIWM | If It Were Me | - | ISO Country Codes |
| IJPMP | I Just Pissed My Pants | - | ISO Country Codes |
| IJWTK | I Just Want To Know | - | ISO Country Codes |
| IJWTS | I Just Want To Say | - | ISO Country Codes |
| IKALOPLT | I Know A Lot Of People Like That | - | ISO Country Codes |
| IKWYM | I Know What You Mean | - | ISO Country Codes |
| IKYABWAI | I Know You Are But What Am I? | - | ISO Country Codes |
| ILA | I Love Acronyms | - | ISO Country Codes |
| ILICISCOMK | I Laughed, I Cried, I Spat/Spilt Coffee/Crumbs/Coke On My Keyboard | - | ISO Country Codes |
| ILU | I Love You | - | ISO Country Codes |
| ILUAAF | I Love You As A Friend | - | ISO Country Codes |
| ILY | I Love You | - | ISO Country Codes |
| IM | Instant Messaging | - | ISO Country Codes |
| IM2BZ2P | I AM Too Busy To Pee | - | ISO Country Codes |
| IMA | I Might Add | - | ISO Country Codes |
| IMAO | In My Arrogant Opinion | - | ISO Country Codes |
| IMBLUV | It Must Be Love | - | ISO Country Codes |
| IMCO | In My Considered Opinion | - | ISO Country Codes |
| IME | In My Experience | - | ISO Country Codes |
| IMEZRU | I Am Easy, Are You? | - | ISO Country Codes |
| IMHEIUO | In My High Exalted Informed Unassailable Opinion | - | ISO Country Codes |
| IMHO | In My Humble Opinion | - | ISO Country Codes |
| IMI | I Mean It | - | ISO Country Codes |
| IMNERHO | In My Not Even Remotely Humble Opinion | - | ISO Country Codes |
| IMNSHO | In My Not So Humble Opinion | - | ISO Country Codes |
| IMO | In My Opinion | - | ISO Country Codes |
| IMOO | In My Own Opinion | - | ISO Country Codes |
| IMPOV | In My Point Of View | - | ISO Country Codes |
| IMRU | I Am, Are You? | - | ISO Country Codes |
| IMS | I Am Sorry | - | ISO Country Codes |
| INBD | It's No Big Deal | - | ISO Country Codes |
| INMP | It's Not My Problem | - | ISO Country Codes |
| INNW | If Not Now, When? | - | ISO Country Codes |
| INPO | In No Particular Order | - | ISO Country Codes |
| INUCOSM | It's No Use Crying Over Spilt Milk | - | ISO Country Codes |
| IOH | I'm Outta Here | - | ISO Country Codes |
| ION | Index Of Names | - | ISO Country Codes |
