@totalColumns 6

connection_type: notEmpty

fcc_registration_number: empty or range(0000000000, 9999999999)

unique_plan_identifier: empty or regex("^[FM][0-9]{1,10}[A-Z0-9]{1,15}$")

connection_type: notEmpty

```

5. FCC Registration Number (FRN).

This is a 10-digit unique identifying number that is assigned to organizations doing business with the

Commission. An organization can be issued a FRN through the FCC’s Commission Registration System

(CORES) or by filing FCC Form 160 [25]. The FRN is a required part of the label identification number (but

if providers outside of the US use this schema, this field can be left empty).

This field MUST be in the file and MUST be populated by providers in the US. For providers outside of the

US, it MAY be left empty.

Name: fcc_registration_number

Type/Format: numeric, range(0000000000, 9999999999)

Examples: 0005937974, 0003768165, 0005937974

```

fcc_registration_number: empty or range(0000000000, 9999999999)

```

6. Unique Plan Identifier (UPI).

This is a combination of plan type (F or M), plus the FRN from above (up to 10 numbers), plus an additional

unique string of up to 15 characters.

The unique alphanumeric string part at the end of the UPI MUST only contain capital letters (A-Z) and

numbers (0-9). It MUST NOT include any special characters or other delimiters such as hyphens. This part

of the string is chosen by the provider.

This field MUST be in the file and MUST be populated by providers in the US. For providers outside of the

US, it MAY be left empty.

Name: unique_plan_identifier

Type/Format: string, limited to a maximum of 26 characters, no special characters, no delimiters, all letters

capitalized.

Examples: F0005937974TIER1, F0005937974ABCD12341234, F0005937974ABCDEFGHIJ12345