It's not uncommon to use double, triple, and so forth to indicate a repeated character. This may be frowned upon in some environments where consistency and accuracy are highly valued, when each digit tends to be read individually, for example in financial trading, in aviation, or in military operations. This is also far less common among Americans than Britons— for numbers, at least; we do not have such hangups when it comes to letters (the NCAA is most often the en see double A or en see two A, and the AAA is invariably triple A).
The YouTube channel Numberphile covered this a few years ago in a video entitled British Numbers confuse Americans. In the first example, a British person saying the phone extension 8844 aloud might say double eight double four, whereas an American might say eighty-eight forty-four, and each sounds distinctly foreign to the other. This would go even more so for a number like 8448, which would commonly be read aloud as eighty-four forty-eight in the U.S.; eight double four eight would be unexpected to the point of being slightly disorienting.
This goes even more so for numbers or codes that have a conventional formatting pattern. A North American phone number is usually divided up as nnn-nnn-nnnn. A French phone number, also ten digits, is on the other hand nn-nn-nn-nn-nn. Use one pattern in the other locale and you will wrong-foot your conversation partner. Indian phone numbers seem to use longer sequences of numbers, so perhaps there is no expectation that reading it should follow a certain cadence.
Americans also tend to read numbers ending in 00 as hundred and 000 as thousand; thus, American Airlines' phone number 817-967-2000 will commonly be read as eight one seven, nine six seven, two thousand, although I'd wager you'll encounter two zero zero zero or two oh oh oh long before you find someone who says two triple zero.
In my personal experience, double and triple in the US is most commonly encountered for certain ZIP (postal) codes. When a television show invites you to join the studio audience, the announcer might read off an address to write in Brentwood, Los Angeles, nine double oh four nine.
13871they might go one, three, eight and pause, then eight, seven one. – TripeHound Sep 11 '19 at 10:03