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Halo Alpha
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A Service Tag is a tag meant to identify players quickly during a match. They consist of one letter and two numbers in Halo 3 and an arbitrary combination of 4 letters or numbers in Halo 3: ODST, Halo: Reach, and Halo 4. In team games, they appear above a player's head with a marker indicating their position, even through walls. When the player's reticle is pointed directly at the player, the full Gamertag is displayed instead.

It is beneficial for a player to set his service tag to be identical to his Gamertag so his teammates can more easily identify him.

List of Prohibited Service Tags[]

Some service tags are not allowed because they are vulgar, offensive, reserved, or copyrighted. These are not complete lists and are added to over time.

Halo 3[]

  • Every service tag ending in 00
  • A01 - Resembles AOL
  • A20
  • A23 - Reserved by UNSC
  • A55
  • C17
  • E51
  • E74 - Resembles the Red Ring error code E-74
  • E43 - Resembles 343 in 343 Guilty Spark
  • F03 - Resembles Fallout 3
  • F43
  • F46
  • F48
  • F49
  • I17
  • L17 - Reserved by UNSC
  • N34
  • N64 - Represents Nintendo 64
  • N84
  • P51 - Resembles "PS1"
  • P52 - Resembles "PS2"
  • P53 - Resembles "PS3"
  • T17
  • U50
  • V50
  • Z17
  • 117 - Reserved by UNSC

Halo 3: ODST[]

  • C0DY
  • B4K4
  • C0CK

Halo: Reach[]

  • S117 - John-117's service number
  • UNSC
  • Sll - Resembles Spartan II
  • 7 - Bungie's favorite number
  • 0000
  • Slll - Resembles Spartan III
  • WIKI - Used by Halo Nation members
  • RVB - Stands for Red vs Blue, a machinima series by Rooster Teeth
  • 343I - Stands for 343 Industries
  • AN - Stands for Allied Nations
  • NOOB
  • HALO
  • JOHN
  • YIFF

Halo 4[]

Trivia[]

  • In Halo 3, when I17 is entered as a service tag, a message displays that says, "this service tag is currently reserved by the UNSC."
  • A prohibited service tag can be used if it was randomly assigned to the player upon profile creation.

Sources[]

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