About: Central office code protection

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In the administration of the North American Numbering Plan, central office code protection is a numbering policy for maintaining local seven-digit dialing in communities that extend on both sides of the boundary line between multiple numbering plan areas (NPAs), such as in cross-border towns on state lines. Code protection prevents the use of the same telephone number on both sides by not assigning the same central office code of one NPA in the adjacent NPA.

Attributes	Values
rdf:type	organisation
rdfs:label	Central office code protection (en)
rdfs:comment	In the administration of the North American Numbering Plan, central office code protection is a numbering policy for maintaining local seven-digit dialing in communities that extend on both sides of the boundary line between multiple numbering plan areas (NPAs), such as in cross-border towns on state lines. Code protection prevents the use of the same telephone number on both sides by not assigning the same central office code of one NPA in the adjacent NPA. (en)
dcterms:subject	North American Numbering Plan
Wikipage page ID	44742953 (xsd:integer)
Wikipage revision ID	1079878586 (xsd:integer)
Link from a Wikipage to another Wikipage	Campobello Island Bell Aliant Providence, Rhode Island Area code 207 Area code 301 Area code 506 Area code 605 Area code 613 Area code 618 Area code 703 Area code 712 Area code 816 Area code 913 North American Numbering Plan Area codes 571 and 703 Rehoboth, Massachusetts Virginia Eastern Shore of Maryland Number pooling North American Numbering Plan Maryland Massachusetts Coffeyville, Kansas Lubec, Maine Madawaska, Maine Competitive local exchange carrier Overlay plan Linked numbering scheme Local access and transport area East Providence, Rhode Island Edmundston Fairpoint Telephone exchange Sioux City metropolitan area Area code 202 Area code 314 Kansas City metropolitan area Area codes 240 and 301 South Coffeyville, Oklahoma Split plan St. Louis New Brunswick Seekonk, Massachusetts Verizon New England Ten-digit dialing Seven-digit dialing 508 area code Area code 402 Area code 819 401 area code Numbering plan area Overlay area code Wire center
sameAs	Central office code protection Central office code protection Central office code protection
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Refn dbt:Short_description
has abstract	In the administration of the North American Numbering Plan, central office code protection is a numbering policy for maintaining local seven-digit dialing in communities that extend on both sides of the boundary line between multiple numbering plan areas (NPAs), such as in cross-border towns on state lines. Code protection prevents the use of the same telephone number on both sides by not assigning the same central office code of one NPA in the adjacent NPA. Central office code protection was once common in communities on provincial or state boundary lines. It has been declining in use as inefficient allocation of numbering resources to the growing number of competitive local exchange carriers has caused depletion of available number prefixes, often requiring ten-digit local calls and overlay plans where multiple area codes serve the same geographic location. Despite its advantages where a community of interest reaches across an NPA boundary, central office code protection was only acceptable as long as it could be continued without the threat of central office code exhaustion in the NPA protecting the code.(COCAG) Despite its advantages where a community of interest reaches across an NPA boundary, central office code protection was only acceptable as long as it could be continued without the threat of central office code exhaustion in the NPA protecting the code. (en)
gold:hypernym	Policy
prov:wasDerivedFrom	wikipedia-en:Central_office_code_protection?oldid=1079878586&ns=0
page length (characters) of wiki page	9922 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Central_office_code_protection
is Link from a Wikipage to another Wikipage of	Area codes 202 and 771 Area codes 410, 443, and 667 Area codes 819 and 873 North American Numbering Plan Overlay plan Exchange code protection Ten-digit dialing Seven-digit dialing
is Wikipage redirect of	Exchange code protection
is foaf:primaryTopic of	wikipedia-en:Central_office_code_protection

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