Is it a US Employer Identification Number (EIN)?

Nine digits, written NN-NNNNNNN or as plain digits. The two-digit prefix is the assigning IRS campus code; 00 is never issued, so it (and degenerate all-same values) is rejected. A bare 9-digit number is still weakly specific – the variable-name hint is the real disambiguator, so is_ein is marked loose in the ontology. (A fuller valid-prefix whitelist would raise specificity; it needs the fixture generator updated in lockstep.)

Usage

is_ein(x)

Arguments

x

A character vector.

Value

Logical vector; TRUE for a plausible EIN.

See also

Other gov detectors: is_chinese_resident_id(), is_dea(), is_naics(), is_ssn(), is_uei()

Examples

is_ein(c("15-4464349", "154464349", "00-1234567", "111111111", NA))
#> [1]  TRUE  TRUE FALSE FALSE    NA