ASN Lookup Tool

MCNC mcnc.org US US 147 Routes

AS Data

AS81

AS81 – MCNC

AS Number 81
AS Name NCREN
Organization MCNC (mcnc-z)
Country US
Website mcnc.org
Number of IPv4 Routes 143
Number of IPv6 Routes 4
ASN type ISP
Registry ARIN
Date Allocated 1986-08-07

ASN Intelligence API for production workflows

Use ASN data for AS81 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs
Powered by ASN data

IP Ranges

Route # IPs
152.45.10.0/24 256
152.22.80.0/21 2048
152.46.37.0/24 256
152.10.0.0/16 65536
192.154.60.0/24 256
152.46.28.0/24 256
152.46.2.0/24 256
152.45.4.0/24 256
152.26.0.0/16 65536
152.29.0.0/16 65536
152.45.0.0/16 65536
152.47.0.0/16 65536
152.22.32.0/21 2048
152.46.34.0/24 256
152.46.16.0/21 2048
152.26.212.0/24 256
152.46.43.0/24 256
152.42.64.0/18 16384
192.154.58.0/24 256
152.32.0.0/18 16384
152.46.9.0/24 256
152.38.208.0/20 4096
192.154.66.0/24 256
152.11.0.0/16 65536
152.26.213.0/24 256
152.22.0.0/16 65536
192.101.22.0/23 512
152.60.0.0/16 65536
204.84.80.0/20 4096
152.30.0.0/16 65536
152.22.48.0/21 2048
152.30.92.0/24 256
152.46.25.0/24 256
152.45.5.0/24 256
204.84.112.0/21 2048
206.107.110.0/24 256
152.46.45.0/24 256
152.55.16.0/20 4096
152.30.10.0/24 256
152.35.0.0/16 65536
152.38.192.0/20 4096
152.46.8.0/24 256
192.101.24.0/24 256
192.154.55.0/24 256
152.55.80.0/20 4096
152.26.210.0/24 256
152.20.0.0/16 65536
192.154.61.0/24 256
152.27.0.0/16 65536
152.55.64.0/20 4096
152.30.92.0/22 1024
152.28.0.0/16 65536
152.55.32.0/20 4096
152.38.160.0/19 8192
152.46.36.0/24 256
152.54.0.0/20 4096
152.46.27.0/24 256
192.101.21.0/24 256
152.46.3.0/24 256
198.85.0.0/16 65536

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


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


OrgTechHandle: NCREN-ARIN
OrgTechName:   NCREN Hostmaster
OrgTechPhone:  +1-919-248-4111 
OrgTechEmail:  hostmaster@ncren.net
OrgTechRef:    https://rdap.arin.net/registry/entity/NCREN-ARIN

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


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS395465 Apogee Telecom Inc. US
AS399407 Salem Academy and College US
AS396978 Orange Water and Sewer Authority US
AS46255 Charlotte-Mecklenburg Schools US
AS19413 Roanoke Connect US
AS19718 MCNC US
AS46963 City of Winston Salem US
AS47098 Sampson County Schools US
AS40245 Wake Forest University US
AS36850 University of North Carolina at Chapel Hill US
AS18538 Wake County Public School System US
AS6461 Zayo Bandwidth US
AS46963 City of Winston-Salem US
AS399050 Rowan Cabarrus Community College US
AS7018 AT&T Enterprises, LLC US
AS11442 North Carolina State University US
AS396391 Guilford College US
AS11164 Internet2 US
AS399708 North Carolina Wesleyan College US
AS22862 Clinton City Schools US
AS394407 Central Carolina Community College US
AS394165 City of Greenville, NC US
AS26741 CarolinaEast Medical Center US
AS393875 University of Mount Olive, Inc. US
AS32711 Wake County Government US
AS11426 Charter Communications Inc US
AS46794 Pender County Schools US
AS399565 Shaw University US
AS32417 Elon University US
AS399050 Rowan-Cabarrus Community College US
AS46255 Charlotte Mecklenburg Schools US
AS10952 East Carolina University US
AS400959 Town of Cary US
AS20197 Castle & Cooke North Carolina, LLC US
AS6559 State of NC State Telecommunications Services US
AS19161 Apogee Telecom Inc. US
AS33401 Central Piedmont Community College US
AS13862 North Carolina State University US
AS398580 Queens University of Charlotte US
AS393824 Apogee Telecom Inc. US
AS13371 Duke University US
AS6559 State of NC - State Telecommunications Services US
AS1239 Cogent Communications, LLC US
AS11537 Internet2 US
AS53785 University of North Carolina at Greensboro US
AS174 Cogent Communications, LLC US
AS396028 Vidant Health US
AS396837 North Carolina State Education Assistance Authority US
AS53384 University of North Carolina at Charlotte US
AS3356 Level 3 Parent, LLC US

Upstreams

AS Number Description Country
AS7018 AT&T Enterprises, LLC US
AS11537 Internet2 US
AS11426 Charter Communications Inc US
AS11164 Internet2 US
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US
AS174 Cogent Communications, LLC US

Downstreams

AS Number Description Country
AS395465 Apogee Telecom Inc. US
AS46255 Charlotte Mecklenburg Schools US
AS10952 East Carolina University US
AS399407 Salem Academy and College US
AS400959 Town of Cary US
AS396978 Orange Water and Sewer Authority US
AS20197 Castle & Cooke North Carolina, LLC US
AS6559 State of NC State Telecommunications Services US
AS19413 Roanoke Connect US
AS19718 MCNC US

Contacts

Email Contacts

hostmaster@ncren.net

Abuse Contacts

abuse@mcnc.org

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS81 is an Autonomous System Number used to identify a network for BGP internet routing.
AS81 is listed under MCNC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.