Field K3-1RequiredIdentification Fields

    Metro 2 Field K3-1: K3 Segment Identifier

    Constant value identifying the appended segment as a K3 (Mortgage Information). Carries agency/MERS identifiers used in mortgage reporting.

    Quick Reference

    Field Number:K3-1
    Position:1-2
    Length:2 characters
    Type:alphanumeric
    Record:K3 Segment
    Required:Yes

    Allowed Values

    ValueMeaning
    K3K3 segment identifier

    Validation Rules

    • Must contain the literal value K3
    • Used with mortgage portfolio accounts

    Examples

    K3

    Common Errors

    • K3 appended to a non-mortgage account

    Tips & Best Practices

    • Reserve K3 for mortgage tradelines that need agency/MERS identifiers

    Related Fields

    K3-2
    K3 Agency Identifier
    Single-character code identifying the mortgage agency or reg...
    K3-3
    K3 Mortgage Identification Number
    The agency or MERS mortgage identification number tied to th...

    Other Identification Fields

    1Record Descriptor Word2Processing Indicator4Consumer Account Number3Identification NumberH-2Record Identifier (Header)H-3Cycle Identifier

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    K3 Segment Identifier - Metro 2 Field K3-1