All ASNs

Autonomous System details for AS81

AS81

MCNC • ncren.net

AS81 — MCNC

AS Name

NCREN

Country

United States (US)

Website

ncren.net

Number of IPv4

2,121,728

Number of IPv6

1.35 × 10³⁰

ASN type

Education

Status

Assigned

Registry

ARIN

Allocated

August 07, 1986

Last updated

June 10, 2026

IP Ranges

134 IPv4 prefixes, 4 IPv6 prefixes

Prefix	Company	Number of IPs
128.109.0.0/16	MCNC	65,536
152.4.0.0/16	University of North Carolina System Office	65,536
152.6.0.0/16	Fayetteville State University	65,536
152.8.0.0/16	North Carolina Agricultural and Technical State University	65,536
152.9.0.0/16	North Carolina Central University	65,536
152.10.0.0/16	Appalachian State University	65,536
152.11.0.0/16	Wake Forest University Baptist Medical Center	65,536
152.12.0.0/16	Winston-Salem State University	65,536
152.18.0.0/16	University of North Carolina at Asheville	65,536
152.20.0.0/16	University of North Carolina at Wilmington	65,536
152.21.0.0/16	The University of North Carolina at Pembroke	65,536
152.22.0.0/16	MCNC	65,536
152.22.32.0/21	MCNC	2,048
152.22.40.0/21	MCNC	2,048
152.22.48.0/21	MCNC	2,048
152.22.64.0/21	MCNC	2,048
152.22.72.0/21	MCNC	2,048
152.22.80.0/21	MCNC	2,048
152.26.0.0/16	MCNC	65,536
152.26.16.0/24	MCNC	256
152.26.44.0/24	MCNC	256
152.26.60.0/24	MCNC	256
152.26.69.0/24	MCNC	256
152.26.208.0/24	MCNC	256
152.26.209.0/24	MCNC	256
152.26.210.0/24	MCNC	256
152.26.211.0/24	MCNC	256
152.26.212.0/24	MCNC	256
152.26.213.0/24	MCNC	256
152.27.0.0/16	MCNC	65,536
152.27.12.0/24	MCNC	256
152.28.0.0/16	MCNC	65,536
152.28.1.0/24	MCNC	256
152.29.0.0/16	MCNC	65,536
152.30.0.0/16	Western Carolina University	65,536
152.30.10.0/24	Western Carolina University	256
152.30.92.0/22	Western Carolina University	1,024
152.30.92.0/24	Western Carolina University	256
152.32.0.0/18	Chowan University	16,384
152.35.0.0/16	Meredith College	65,536
152.38.0.0/18	Campbell University	16,384
152.38.17.0/24	Campbell University	256
152.38.18.0/24	Campbell University	256
152.38.64.0/19	Campbell University	8,192
152.38.160.0/19	Campbell University	8,192
152.38.192.0/20	Campbell University	4,096
152.38.208.0/20	Campbell University	4,096
152.38.224.0/19	Campbell University	8,192
152.40.0.0/16	MCNC	65,536
152.42.64.0/18	Davidson College	16,384
152.45.0.0/16	MCNC	65,536
152.45.1.0/24	MCNC	256
152.45.2.0/24	MCNC	256
152.45.3.0/24	MCNC	256
152.45.4.0/24	MCNC	256
152.45.5.0/24	MCNC	256
152.45.6.0/24	MCNC	256
152.45.8.0/24	MCNC	256
152.45.9.0/24	MCNC	256
152.45.10.0/24	MCNC	256
152.45.11.0/24	MCNC	256
152.45.15.0/24	MCNC	256
152.45.20.0/24	MCNC	256
152.46.0.0/16	MCNC	65,536
152.46.1.0/24	MCNC	256
152.46.2.0/24	MCNC	256
152.46.3.0/24	MCNC	256
152.46.4.0/24	MCNC	256
152.46.5.0/24	MCNC	256
152.46.6.0/24	MCNC	256
152.46.7.0/24	MCNC	256
152.46.8.0/24	MCNC	256
152.46.9.0/24	MCNC	256
152.46.12.0/24	MCNC	256
152.46.13.0/24	MCNC	256
152.46.14.0/24	MCNC	256
152.46.15.0/24	MCNC	256
152.46.16.0/21	MCNC	2,048
152.46.24.0/24	MCNC	256
152.46.25.0/24	MCNC	256
152.46.26.0/24	MCNC	256
152.46.27.0/24	MCNC	256
152.46.28.0/24	MCNC	256
152.46.29.0/24	MCNC	256
152.46.30.0/24	MCNC	256
152.46.31.0/24	MCNC	256
152.46.32.0/24	MCNC	256
152.46.33.0/24	MCNC	256
152.46.34.0/24	MCNC	256
152.46.35.0/24	MCNC	256
152.46.36.0/24	MCNC	256
152.46.37.0/24	MCNC	256
152.46.38.0/24	MCNC	256
152.46.39.0/24	MCNC	256
152.46.42.0/24	MCNC	256
152.46.43.0/24	MCNC	256
152.46.44.0/24	MCNC	256
152.46.45.0/24	MCNC	256
152.46.47.0/24	MCNC	256
152.46.48.0/24	MCNC	256
2600:2700::/28	MCNC	1.27 × 10³⁰
2602:f64d::/40	Meredith College	3.09 × 10²⁶
2602:f6b8::/40	Sheppard Memorial Library	3.09 × 10²⁶
2610:28::/32	MCNC	7.92 × 10²⁸

This table only shows the first 100 of the set of IPv4 and IPv6 prefixes. All data is available via our IP data API.

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS81

1 peers

AS20197

AS81 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS81

7 upstreams

AS174 AS3356 AS6461 AS7018 AS11164 AS11426 AS11537

AS81 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS81 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS81

37 downstreams

AS6559 AS10952 AS11442 AS13371 AS13862 AS18538 AS19161 AS19413 AS19718 AS22862 AS26741 AS32417 AS32711 AS33401 AS36850 AS40245 AS46255 AS46794 AS46963 AS47098 AS53384 AS53785 AS393824 AS393875 AS394165 AS394407 AS395465 AS396028 AS396391 AS396837 AS396978 AS398580 AS399050 AS399407 AS399565 AS399708 AS400959

AS81 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.