Apple to Transition to Longer Serial Numbers for Repair Parts in October - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple to Transition to Longer Serial Numbers for Repair Parts in October

Apple will begin to use a new and longer serial number format for iPhone, Mac, Apple Watch, and other product repair parts starting October 1, a few weeks following the expected launch of the new iPhone 14, Apple Watch Series 8, and other new products.

apple self service repair iphone
In a memo obtained by MacRumors, Apple is informing authorized service providers that their machines and equipment will need to be updated to support a new, longer 18-digit serial number for repair parts starting October 1. The current serial number for repair parts is 17-digits. The new 18-digit serial number will likely apply only to future repair parts, such as those for new iPhones, iPads, Apple Watches, and Macs.

Before the launch of the iPhone 12 in 2020, Apple informed authorized service providers of its plans to move to use a randomized serial number for its products rather than the previous format, which has for years allowed customers and service providers to determine the date and location that a product was manufactured. Apple did not implement the randomized format until the purple iPhone 12 in May 2021.

Popular Stories

iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...
Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....

Top Rated Comments

53 months ago
So I guess they should be called random numbers instead of serial numbers.
Score: 4 Votes (Like | Disagree)
NoelWalker Avatar
53 months ago
Should have moved to 20-digit serial numbers instead. Maybe include emojis as well. Even 18-digit ones will run out very quickly in the foreseeable future considering how frequent their devices are being replaced every single year.

/s
Score: 3 Votes (Like | Disagree)
53 months ago
Wonder what the benefit will be for Apple with this change.
Score: 2 Votes (Like | Disagree)
53 months ago

So is the point to make it more difficult to figure out if a certain phone should be avoided, or disrupt people determining other resale values on a potentially problem run of products? For example, the IPhone 12 has potential speaker issues on phones manufactured over a 3-month period.
Basically the latter. I remember massive returns of some Apple products because a certain plant was using, for example, one type of LCD panel and they wanted a specific one. The costs of that add up, as does the down-the-line customer dissatisfaction (ie, the ones who do not care about specific panels but have to wait longer to get a device because someone burned one because of SN).
Score: 2 Votes (Like | Disagree)
WWPD Avatar
53 months ago
This changes EVERYTHING. Balls in your court Samsung/Google.
Score: 1 Votes (Like | Disagree)
Porco Avatar
53 months ago
Tim Cook might have allegedly said Apple are quadruple-decatetra-hexaconta-tripling down on randomised numbers.
Score: 1 Votes (Like | Disagree)