User talk:16.242.234.21

May 2019
Hello, and welcome to Wikipedia. This is a message letting you know that one or more of your recent edits to Royal Challengers Bangalore in 2019 has been undone by an automated computer program called ClueBot NG.

Thank you. ClueBot NG (talk) 07:14, 14 May 2019 (UTC)
 * ClueBot NG makes very few mistakes, but it does happen. If you believe the change you made was constructive, please read about it, [ report it here], remove this message from your talk page, and then make the edit again.
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 * The following is the log entry regarding this message: Royal Challengers Bangalore in 2019 was changed by 16.242.234.21 (u) (t) ANN scored at 0.94595 on 2019-05-14T07:13:59+00:00

Please refrain from making unconstructive edits to Wikipedia, as you did at Royal Challengers Bangalore in 2019. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Rsrikanth05 (talk) 07:30, 14 May 2019 (UTC)
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November 2019
Hello, I'm Widr. I wanted to let you know that one or more of your recent contributions to National conventions for writing telephone numbers have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the help desk. Widr (talk) 19:18, 25 November 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

Recent edit to Data link layer
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Data link layer, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you! Materialscientist (talk) 06:08, 11 February 2020 (UTC)