14 is the numerical shorthand for the "14 Words," the popular white supremacist slogan coined by David Lane: "We must secure the existence of our people and a future for white children."

18 is the alphanumeric code for Adolf Hitler, in which 1 = A and 8 = H. It is often associated with the British white supremacist group Combat 18/C18.

28 is an alphanumeric code for Blood and Honour, an international white supremacist skinhead group, in which 2 = B and 8 = H.

38 is the numeric symbol for the racist skinhead group the Hammerskins. The code substitutes letters for numbers, so 38 stands for CH or "Crossed Hammers," a reference to the crossed hammers of the group's logo.

The numeric code for "Hail Christ," referring to the 8th (H) and 3rd (C) letters of the alphabet. It originated with adherents of Christian Identity, a racist and antisemitic religious sect, but has since also spread to... Read more

88 is a white supremacist numerical code for "Heil Hitler." H is the eighth letter of the alphabet, so 88 = HH = Heil Hitler. One of the most common white supremacist symbols, 88 is used throughout... Read more

131 is alphanumeric code for ACA, "Anti Communist Action." Used by The Nationalist Social Club (NSC) to describe themselves, 131 Crew, or to describe their turf, 131 Zone.

311 is the alphanumeric code for KKK. K is the 11th letter in the alphabet so 3 times 11 is KKK.

318 is the numeric code for the British white supremacist group Combat 18. The 3 represents the letter C, so C 18, or Combat 18.

511 is the numeric code for the European Kindred, a white supremacist prison gang based in Oregon. The 5 = E and the 11=K for European Kindred.