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OWWL Barcode Prefixes

OWWL Barcodes

Each library has a unique barcode prefix, as detailed in the table below.

The prefixes are preceded by a lead digit which indicate Item ID or User ID, as well as barcode symbology.
  • Lead digits 3 (Codabar) or 5 (Code 39) are used for item IDs
    • 3 2122 0000 0001 C is a Marion Codabar item ID
    • 5 2112 0000 0001 C is an Arcade Code 39 item ID
  • Lead digit 2 is used for borrower cards.
    • i.e.: 2 2125 0000 0001 C is the beginning of a Newark user ID
Following the prefixes are the actual identifying numbers. The first digit of these numbers differentiate between cards and keytags.
  • Cards start with a 2: - ---- 20000001C
    • Symbology: Extended Code 39
  • Keytags start with a 3: - ---- 30000250 C
    • Symbology: Interleaved 2 of 5
Older identifying numbers may start with a 0 or 1.

OWWL Barcode Prefix Table

Prefix is preceded by either a 3 or a 5

Library Policy Name Description OWWL Prefix Previous Prefix
ALLENSHILL Allens Hill Free Library 2132  
ARCADE Arcade Free Library 2112  
ATTICA Stevens Memorial Library--Attica 2149  
AVON Avon Free Library 2113  
BLISS Eagle Free Library--Bliss 2137  
BLOOMFIELD Bloomfield Public Library 2133 4443
BRISTOL Bristol Library 2134  
CALEDONIA Caledonia Library 2135  
CANANDAIGU Wood Library Association of Canandaigua 2131 1846
CASTILE Cordelia A. Greene--Castile 2136  
CLIFTON Clifton Springs Library 2115 6659
CLYDE Clyde-Savannah Public Library 2116  
DANSVILLE Dansville Public Library 2117  
GENESEO Wadsworth Library--Geneseo 2150 WADS
GENEVA Geneva Free Library 2118 2204
GORHAM Gorham Free Library 2119  
HONEOYE Honeoye Public Library 2120  
LIMA Lima Public Library 2139  
LIVONIA Livonia Public Library 2140 4487
LYONS Lyons Public Library 2141 4489
MACEDON Macedon Public Library 2121  
MARION Marion Public Library 2122 6984
MTMORRIS Mount Morris Public Library 2123  
NAPLES Naples Library 2124 4512
NEWARK Newark Public Library 2125 6658
NUNDA Bell Memorial Library--Nunda 2114  
ONTARIO Ontario Public Library 2126 ONTx
PALMYRA Palmyra Kings Daughters Free Library 2127  
PERRY Perry Public Library 2142 YQRY
PHELPS Phelps Community Memorial Library 2143 4532
PLSHQ Pioneer Library System Headquarters 2111  
POP Pop-up Library 2110  
REDCREEK Red Creek Free Library 2145  
REDJACKET Red Jacket Community Library--Shortsville 2146 RJP
ROSE Rose Free Library 2147  
SILVERSPR Gainesville Public Library--Silver Springs 2138  
SODUS Sodus Free Library 2148 4551
VICTOR Victor Free Library 2128 VIC
WALWORTH Walworth-Seely Public Library 2129  
WARSAW Warsaw Public Library 2151 4569
WILLIAMSON Williamson Library 2152 4589
WOLCOTT Wolcott Civic Free Library 2130  
WYOMING Wyoming Free Library 2153  
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