AS81 MCNC 🇺🇸 US

Announcing 138 prefixes, seen at the RIS collectors.

IPv4 prefixes

134

2,056,448 (8,033 × /24)

IPv6 prefixes

17 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS81
Name: MCNC
Organisation: MCNC
Country: 🇺🇸 US
RIR: ARIN
Allocated: 1986-08-07
Network type: Educational/Research
Scope: Regional
Peering policy: Open
IRR as-set: ARIN::AS-NCREN
Website: http://www.mcnc.org
PeeringDB: net/2795

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

108 valid (78.3%) 0 invalid (0.0%) 30 no ROA (21.7%)

Whois

Fetched from whois.arin.net

ASNumber:       81
ASName:         NCREN
ASHandle:       AS81
RegDate:        1986-08-07
Updated:        2026-06-10
Ref:            https://rdap.arin.net/registry/autnum/81

OrgName:        MCNC
OrgId:          MCNC-Z
Address:        3021 E. Cornwallis Rd
City:           Durham
StateProv:      NC
PostalCode:     27713-2852
Country:        US
RegDate:        2021-06-14
Updated:        2026-02-12
Ref:            https://rdap.arin.net/registry/entity/MCNC-Z

OrgAbuseHandle: ABUSE3348-ARIN
OrgAbuseName:   Abuse Contact
OrgAbusePhone:  +1-919-248-4111
OrgAbuseEmail:  abuse@mcnc.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3348-ARIN

OrgTechHandle: NCREN-ARIN
OrgTechName:   NCREN Hostmaster
OrgTechPhone:  +1-919-248-1405
OrgTechEmail:  hostmaster@ncren.net
OrgTechRef:    https://rdap.arin.net/registry/entity/NCREN-ARIN

RTechHandle: NH34-ORG-ARIN
RTechName:   NCREN Hostmaster
RTechPhone:  +1-919-248-1405
RTechEmail:  hostmaster@ncren.net
RTechRef:    https://rdap.arin.net/registry/entity/NH34-ORG-ARIN