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Electronic Access Methods Code List

List identifier: electronaccess

Code List

This list was originally developed for use in MARC 21 Format for Bibliographic Data, MARC 21 Format for Authority Data, MARC 21 Format for Holdings Data, MARC 21 Format for Classification Data, MARC 21 Format for Community Information Data,  field 856 subfield 2 (Electronic Location and Access / Access method).

acap Application configuration access protocol
afs Andrew File System global file names
cid Content identifier
data Data
dav Dav
fax Fax
file Host-specific file names
ftp File Transfer Protocol
gopher Gopher Protocol
http Hypertext Transfer Protocol
https Hypertext Transfer Protocol Secure
imap Internet message access protocol
ldap Lightweight Directory Access Protocol
mailserv Mail server access
mailto Electronic mail address (email)
mid Message identifier
modem Modem (includes dialup)
news USENET news protocol
nfs Network file system protocol
nntp USENET news using NNTP access
olt Opaque Lock Token
pop Post Office Protocol (version 3)
prospero Prospero Directory Service
rtsp Real time streaming protocol
service Service location
sip Session initiation protocol
tel Telephone
telnet Reference to interactive sessions
tip Transaction Internet Protocol
tn Interactive 3270 emulation sessions
vemmi Versatile multimedia interface
wais Wide Area Information Servers
zr Z39.50 Information Retrieval single record result
zs Z39.50 Information Retrieval session

List Maintenance

The Library of Congress is the maintenance agency for this value list. Questions and requests for information should be sent to: Network Development and MARC Standards Office, Library of Congress, 101 Independence Avenue, S.E., Washington, DC 20540-4402; Fax: +1-202-707-0115; Internet: ndmso@loc.gov. Requests for additions to the value list should include an explanation and justification.

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