I suspect the model is statistical, not based on an assumption that changing phone numbers means something about financial instability. The scores are driven by analysis of big data and sometimes interesting correlations pop up.
Lies, the drug game is secure.
I wonder about that though, isn’t “total available credit” or something like that another metric? I remember reading in the past that having a large amount of credit available (whether it’s used or not) can affect your score negatively because it is assumed you could potentially use it at any time.
I am a credit score expert because I play it like a video game to get free travel and have done so for years. Ignore almost everything that has been said. They do have the facts mostly right as the score was intended but it is easily beatable. This isn’t about value judgement, it is a game that you can win.
I can teach you the basic rules in less than an hour and boost your credit score greatly and for free. There are many nuances but only a few are really significant.
If you want the 2 minute version, here it is.
- 
Get all your credit reports from www.annualcreditreport.com and dispute every negative entry on all of them online. They have to respond quickly and hardly ever rule against you. Once they rule in your favor, that entry is permanently blocked. Again, it doesn’t matter if you are guilty or not. It is like court and they have to prove it and it simply isn’t worth it for people to bother the vast majority of the time.
 - 
Don’t ever cancel your oldest credit card.
 
Mostly done.
People get very confused about what really counts and what doesn’t. You can have as many credit cards as you want (I currently have 25), your income doesn’t count nor do your assets. Just don’t apply for lots of credit right before you apply for something like a mortgage and you are golden.
Sign up for creditkarma.com (free and reputable) to help you understand things better. My credit score as of today is 821 and no one needs a credit score that high but I will never be denied anything because of it and you can gets tons of benefits.
You can too very easily just by following those simple steps. This is your early Christmas present to anyone reading this.
Next up: I can teach you in one step how to give someone else like a minor child your credit without any risk to yourself.
Well, yes, if you don’t mind being scammed and/or caught cheating.
OR you can study real hard.
even on their credit report, I have 14 years of good payments
I don’t know if this was/is true, but back when I used to sell, cell phones, I was told and told customers that their credit rating for activation was based heavily on utility payments. I had customers claim they had a good credit score, but missed a couple of utility payments and they’d have to pay a deposit. Also not all phone companies were the same. Sprint/Nextel were the easiest to activate with no deposit.
How, exactly, do you “study real hard” for a FICO score? (And I’m not sure what cheating would look like either, aside from using somebody else’s credit report entirely.)