MARC 21 Concise Format for Community Information Data: 856: Electronic Location and Access (Network Development and MARC Standards Office, Library of Congress)

This is an ARCHIVED VERSION of the 2008 electronic edition of the MARC 21 Concise Formats. Please see loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

Contains the information needed to locate and access electronic information pertaining to a community service such as the service or event website or related resources. Subfields $y (Link text) and $z (Public note) may be used to specify the type of electronic information.

Field 856 is repeated when the location data elements vary (the URL in subfield $u or subfields $a, $b, $d when used). It is also repeated whenever the electronic filename varies (subfield $f), except when a single intellectual item is divided into different parts for online storage or retrieval.

First - Access method

# - No information provided

0 - Email

1 - FTP

2 - Remote login (Telnet)

3 - Dial-up

4 - HTTP

7 - Method specified in subfield $2

Second - Relationship

# - No information provided

0 - Resource

1 - Version of resource

2 - Related resource

8 - No display constant generated

$a - Host name (R)

Fully qualified domain (host name) of the electronic location. It contains a network address which is repeated if there is more than one address for the same host.

$b - Access number (R)

Access number associated with a host. It can contain the Internet Protocol (IP) numeric address if the item is an Internet resource, or a telephone number if dial-up access is provided through a telephone line. This data may change frequently and may be generated by the system, rather than statically stored.

$c - Compression information (R)

Information about the compression of a file; in particular, whether a specific program is required to decompress the file.

$f - Electronic name (R)

$h - Processor of request (NR)

Username, or processor of the request; generally the data which precedes the at sign (@) in the host address.

$i - Instruction (R)

Instruction or command needed for the remote host to process a request.

$j - Bits per second (NR)

$l - Logon (NR)

Characters needed to connect (i.e, logon, login, etc.) to an electronic resource or FTP site. This subfield is used to record general-use logon strings which do not require special security.

$m - Contact for access assistance (R)

$n - Name of location of host (NR)

Conventional name of the location of the host in subfield $a, including its physical (geographic) location.

$o - Operating system (NR)

$p - Port (NR)

Portion of the address that identifies a process or service in the host.

$q - Electronic format type (NR)

Identification of the electronic format type, which is the data representation of the resource, such as text/html, ASCII, Postscript file, executable application, or JPEG image. Electronic format type may be taken from enumerated lists such as registered Internet Media Types (MIME types).

$t - Terminal emulation (R)

$u - Uniform Resource Identifier (R)

Uniform Resource Identifier (URI), which provides electronic access data in a standard syntax. Field 856 is structured to allow for the creation of a URL from the concatenation of other separate field 856 subfields. Subfield $u may be used instead of those separate subfields or in addition to them. Subfield $u may be repeated only if both a URN and a URL or more than one URN are recorded.

$v - Hours access method available (R)

$w - Record control number (R)

$x - Nonpublic note (R)

$z - Public note (R)

$2 - Access method (NR)

$3 - Materials specified (NR)

$6 - Linkage (NR)

See the description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number (R)

See the description of this subfield in Appendix A: Control Subfields.


856	1#$amaine.maine.edu $cMust be decompressed with PKUNZIP$fresource.zip$s16874 bytes


856	1#$awuarchive.wustl.edu $dmirrors/info-mac/util$fcolor-system-icons.hqx
856	0#$akentvm.bitnet $facadlist file1$facadlist file2$facadlist file3


856	3#$b1-202-7072316 $j2400-9600$nLibrary of Congress, Washington, DC$oUNIX$rE-7-1$tvt100 $zRequires logon and password


856	0#$akeptvm.bitnet $facadlist file1$s34,989 bytes$facadlist file2$s32,876 bytes$facadlist file3$s23987 bytes


856	3#$alocis.loc.gov $b140.147.254.3$mlconline@loc.gov $t3270$tline mode (e.g., vt100)$vM-F 6:00 a.m.-21:30 p.m. USA EST, Sat. 8:30-17:00 USA EST, Sun. 13:00-17:00 USA EST


856	1#$awuarchive.wustl.edu $cdecompress with PKUNZIP.exe$d/mirrors2/win3/games $fatmoids.zip$xcannot verify because of transfer difficulty


856	42$3Finding aid$uhttp://lcweb2.loc.gov/ammem/ead/jackson.sgm


856	2#$aanthrax.micro.umn.edu $b128.101.95.23


856	1#$aharvarda.harvard.edu $kguest


856	1#$aunmvm.bitnet $lanonymous


856	2#$agopac.berkeley.edu $mRoy Tennant

856 - Electronic Location and Access (R)