1 falling short of a standard a bad first attempt at making meat loaf resulted in a soggy, inedible mess Synonyms bastard, bush, bush-league, crummy (also crumby), deficient, dissatisfactory, ill, inferior, lame, lousy, off, paltry, poor, punk, sour, suboptimal, subpar, substandard, unacceptable, unsatisfactory, wack [slang], wanting, wretched, ...
Answer Wiki. The Integrated Circuit Chip ID or ICCID (this is the 19 or 20 digits printed on the SIM) is not necessarily related to the IMSI - this is not a requirement of the cellular standards. The ICCID is only for the specific SIM card during manufacturing and is not changed.
To try and minimize this, credit card numbers contain a check digit. In a typical sixteen digit credit card number, the first fifteen digits are determined by the issuing bank, but the last digit, called the check digit, is mathematically determined based on all the other digits.