Autonomous System details

AS81

MCNC · mcnc.org

United States

BitTorrent

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AS81 – MCNC

Field	Value
Country	United States
Website	mcnc.org
Hosted domains	471
IPv4 addresses	2,097,664
IPv6 addresses	1,347,188,247,752,315,084,158,971,936,768
ASN type	Education
Registry	arin
Allocated	40 years ago on Aug 07, 1986
Updated	5 years ago on Jun 29, 2021

Netblock	Company	Num of IPs
204.84.0.0/15	MCNC	131,072
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
152.26.0.0/16	MCNC	65,536
152.27.0.0/16	MCNC	65,536
152.28.0.0/16	MCNC	65,536
152.29.0.0/16	MCNC	65,536
152.30.0.0/16	Western Carolina University	65,536
152.35.0.0/16	Meredith College	65,536
152.40.0.0/16	MCNC	65,536
152.45.0.0/16	MCNC	65,536
152.46.0.0/16	MCNC	65,536
152.47.0.0/16	MCNC	65,536
152.48.0.0/16	MCNC	65,536
152.49.0.0/16	MCNC	65,536
152.54.0.0/16	MCNC	65,536
152.60.0.0/16	MCNC	65,536
198.85.0.0/16	MCNC	65,536
198.86.0.0/16	MCNC	65,536
152.32.0.0/18	Chowan University	16,384
152.38.0.0/18	Campbell University	16,384
152.42.64.0/18	Davidson College	16,384
204.85.192.0/18	MCNC	16,384
152.38.64.0/19	Campbell University	8,192
152.38.160.0/19	Campbell University	8,192
152.38.224.0/19	Campbell University	8,192
206.211.64.0/19	Durham Public Schools	8,192
152.38.192.0/20	Campbell University	4,096
152.38.208.0/20	Campbell University	4,096
152.54.0.0/20	Renaissance Computing Institute	4,096
152.55.0.0/20	MCNC	4,096
152.55.16.0/20	MCNC	4,096
152.55.32.0/20	MCNC	4,096
152.55.48.0/20	MCNC	4,096
152.55.64.0/20	MCNC	4,096
152.55.80.0/20	MCNC	4,096
152.55.96.0/20	MCNC	4,096
152.55.112.0/20	MCNC	4,096
152.55.176.0/20	Railway	4,096
204.84.80.0/20	MCNC	4,096
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
152.46.16.0/21	MCNC	2,048
204.84.112.0/21	MCNC	2,048
152.30.92.0/22	Western Carolina University	1,024
152.46.252.0/22	MCNC	1,024
198.86.244.0/22	Wake Technical Community College	1,024
192.101.22.0/23	MCNC	512
192.154.76.0/23	MCNC	512
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
152.27.12.0/24	MCNC	256
152.28.1.0/24	MCNC	256
152.30.10.0/24	Western Carolina University	256
152.30.92.0/24	Western Carolina University	256
152.38.17.0/24	Campbell University	256
152.38.18.0/24	Campbell University	256
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
152.46.1.0/24	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
152.46.24.0/24	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
152.60.4.0/24	MCNC	256
192.101.21.0/24	MCNC	256
192.101.22.0/24	MCNC	256
192.101.24.0/24	MCNC	256
192.137.210.0/24	Durham Technical Community College	256
192.154.33.0/24	University of North Carolina School of the Arts	256
192.154.43.0/24	NCSSM	256
192.154.48.0/24	MCNC	256
192.154.55.0/24	MCNC	256
192.154.58.0/24	MCNC	256
192.154.60.0/24	Lenoir-Rhyne University	256
192.154.61.0/24	Elizabeth City State University	256
192.154.66.0/24	MCNC	256
192.154.95.0/24	Greensboro Area Health Education Center	256
192.189.244.0/24	Pitt Community College	256
204.84.120.0/24	MCNC	256
206.107.110.0/24	Sprint Midatlantic Telecom	256

Netblock	Company
2600:2700::/28	MCNC
2610:28::/32	MCNC
2602:f6b8::/40	Sheppard Memorial Library

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WHOIS Details

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                                                ASHandle:       AS81
                                                OrgID:          AS81
                                                ASName:         AS81
                                                ASNumber:       AS81
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 471 domain names hosted across 187 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
152.46.6.153	██████████	48
152.11.118.182	██████████	41
198.85.20.50	██████████	29
152.4.101.217	█████████	16
152.4.145.38	██████████	13
128.109.135.32	██████████	12
152.10.13.168	██████████	11
152.30.23.83	███████	11
152.54.3.140	██████████	9
198.85.159.144	██████████	9

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Hosted Domains API & Database

Peers

There are 49 peers for this ASN.

Peers	Name
AS10952	East Carolina University
AS11164	Internet2
AS11426	Charter Communications Inc
AS11442	North Carolina State University
AS11537	Internet2
AS11777	North Carolina Adminstrative Office of the Courts
AS1239	Cogent Communications, LLC
AS13371	Duke University
AS13862	North Carolina State University
AS174	Cogent Communications, LLC
AS18538	Wake County Public School System
AS19161	Apogee Telecom Inc.
AS19413	Roanoke Connect
AS19718	MCNC
AS20197	Castle & Cooke North Carolina, LLC
AS22862	Clinton City Schools
AS26741	CarolinaEast Medical Center
AS32417	Elon University
AS32711	Wake County Government
AS33401	Central Piedmont Community College
AS3356	Level 3 Parent, LLC
AS3549	Level 3 Parent, LLC
AS36850	University of North Carolina at Chapel Hill
AS393824	Apogee Telecom Inc.
AS393875	University of Mount Olive, Inc.
AS394165	City of Greenville, NC
AS394407	Central Carolina Community College
AS395312	WEBASSIGN-ASN
AS395465	Apogee Telecom Inc.
AS396028	Vidant Health
AS396391	Guilford College
AS396837	North Carolina State Education Assistance Authority
AS396978	Orange Water and Sewer Authority
AS398580	Queens University of Charlotte
AS399050	Rowan-Cabarrus Community College
AS399407	Salem Academy and College
AS399565	Shaw University
AS399708	North Carolina Wesleyan College
AS400959	Town of Cary
AS40245	Wake Forest University
AS46255	Charlotte-Mecklenburg Schools
AS46794	Pender County Schools
AS46963	City of Winston-Salem
AS47098	Sampson County Schools
AS53384	University of North Carolina at Charlotte
AS53785	University of North Carolina at Greensboro
AS6461	Zayo Bandwidth
AS6559	State of NC - State Telecommunications Services
AS7018	AT&T Enterprises, LLC

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ASN API & Database

Upstreams

There are 6 upstreams for this ASN.

upstreams	Name
AS11164	Internet2
AS11426	Charter Communications Inc
AS174	Cogent Communications, LLC
AS3356	Level 3 Parent, LLC
AS6461	Zayo Bandwidth
AS7018	AT&T Enterprises, LLC

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Downstreams

There are 39 downstreams for this ASN.

Downstreams	Name
AS10952	East Carolina University
AS11442	North Carolina State University
AS11777	North Carolina Adminstrative Office of the Courts
AS13371	Duke University
AS13862	North Carolina State University
AS18538	Wake County Public School System
AS19161	Apogee Telecom Inc.
AS19413	Roanoke Connect
AS19718	MCNC
AS22862	Clinton City Schools
AS26741	CarolinaEast Medical Center
AS32417	Elon University
AS32711	Wake County Government
AS33401	Central Piedmont Community College
AS36850	University of North Carolina at Chapel Hill
AS393824	Apogee Telecom Inc.
AS393875	University of Mount Olive, Inc.
AS394165	City of Greenville, NC
AS394407	Central Carolina Community College
AS395312	WEBASSIGN-ASN
AS395465	Apogee Telecom Inc.
AS396028	Vidant Health
AS396391	Guilford College
AS396837	North Carolina State Education Assistance Authority
AS396978	Orange Water and Sewer Authority
AS398580	Queens University of Charlotte
AS399050	Rowan-Cabarrus Community College
AS399407	Salem Academy and College
AS399565	Shaw University
AS399708	North Carolina Wesleyan College
AS400959	Town of Cary
AS40245	Wake Forest University
AS46255	Charlotte-Mecklenburg Schools
AS46794	Pender County Schools
AS46963	City of Winston-Salem
AS47098	Sampson County Schools
AS53384	University of North Carolina at Charlotte
AS53785	University of North Carolina at Greensboro
AS6559	State of NC - State Telecommunications Services

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ASN API & Database

Pingable IPs

691 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2610:28:108:c::1	AS81 MCNC	`9.71ms` from Ashburn, US
128.109.238.13	AS81 MCNC	`10.60ms` from Ashburn, US
152.8.141.46	AS81 MCNC	`10.90ms` from Ashburn, US
152.26.44.253	AS81 MCNC	`13.02ms` from Ashburn, US
2610:28:107:7::1	AS81 MCNC	`6.73ms` from Ashburn, US
204.85.24.5	AS81 MCNC	`7.43ms` from Ashburn, US
152.28.6.1	AS81 MCNC	`7.84ms` from Ashburn, US
152.4.163.74	AS81 MCNC	`6.68ms` from Ashburn, US
2610:28:10a:4::1	AS81 MCNC	`10.25ms` from Ashburn, US
152.4.222.191	AS81 MCNC	`10.90ms` from Ashburn, US
152.22.104.21	AS81 MCNC	`10.41ms` from Ashburn, US
152.20.112.1	AS81 MCNC	`15.59ms` from Ashburn, US
152.10.2.55	AS81 MCNC	`13.98ms` from Ashburn, US
152.38.17.252	AS81 MCNC	`13.22ms` from Ashburn, US
204.84.121.1	AS81 MCNC	`7.13ms` from Atlanta, US
204.84.48.102	AS81 MCNC	`8.24ms` from Atlanta, US
152.10.6.217	AS81 MCNC	`10.42ms` from Atlanta, US
152.26.10.193	AS81 MCNC	`6.05ms` from Atlanta, US
152.22.87.15	AS81 MCNC	`5.69ms` from Atlanta, US
152.22.74.21	AS81 MCNC	`5.70ms` from Atlanta, US
152.26.215.1	AS81 MCNC	`7.26ms` from Atlanta, US
204.84.0.100	AS81 MCNC	`11.76ms` from Atlanta, US
204.85.18.1	AS81 MCNC	`7.33ms` from Atlanta, US
152.10.13.178	AS81 MCNC	`9.98ms` from Atlanta, US
152.26.77.2	AS81 MCNC	`8.69ms` from Atlanta, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
71.124.5.1	AS701 Verizon Business	`2.63ms` from Ashburn, US
110.239.51.161	AS399898 Conexon Connect	`1.44ms` from Atlanta, US
83.103.199.1	AS12302 Vodafone Romania S.A.	`10.77ms` from Bucharest, RO
78.131.86.1	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`0.92ms` from Budapest, HU
201.235.34.1	AS7303 Telecom Argentina S.A.	`1.28ms` from Buenos Aires, AR
200.127.93.1	AS7303 Telecom Argentina S.A.	`2.74ms` from Buenos Aires, AR
68.147.100.1	AS6327 Shaw Communications	`1.42ms` from Calgary, CA
171.223.123.129	AS4134 CHINANET-BACKBONE	`2.77ms` from Chengdu, CN
47.220.168.1	AS19108 Optimum	`4.27ms` from Dallas, US
103.132.180.1	AS138544 HK Online	`3.45ms` from Dhaka, BD
78.100.131.97	AS8781 Ooredoo Q.S.C.	`0.24ms` from Doha, QA
12.16.97.81	AS7018 AT&T Enterprises, LLC	`6.87ms` from Durham, US
83.64.183.1	AS8412 T-Mobile Austria GmbH	`0.24ms` from Graz, AT
14.216.130.1	AS4134 CHINANET-BACKBONE	`3.92ms` from Guangzhou, CN
47.76.196.17	AS45102 Alibaba (US) Technology Co., Ltd.	`0.80ms` from Hong Kong, HK
110.5.190.1	AS17864 SK Broadband Co Ltd	`3.97ms` from Incheon, KR
58.57.218.193	AS4134 CHINANET-BACKBONE	`7.49ms` from Jinan, CN
136.34.80.1	AS16591 Google Fiber Inc.	`0.38ms` from Kansas City, US
203.121.21.1	AS9930 TTNET-MY	`1.44ms` from Kuala Lumpur, MY
139.184.72.1	AS786 Jisc Services Limited	`5.20ms` from London, GB
78.32.78.113	AS8468 ENTANET International Limited	`1.81ms` from London, GB
81.5.187.33	AS8851 GCI Network Solutions Limited	`13.60ms` from London, GB
12.29.128.177	AS7018 AT&T Enterprises, LLC	`1.46ms` from Los Angeles, US
185.249.26.1	AS200845 AVATEL TELECOM, SA	`9.32ms` from Madrid, ES
201.145.105.65	AS8151 UNINET	`1.87ms` from Mexico City, MX

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f5 -m10 152.10.57.129

traceroute to 152.10.57.129 (152.10.57.129): 10 hops max, 52 byte packets

5 [AS3356] 4.69.219.146 225.389 ms

6 *

7 [AS81] 128.109.9.22 236.657 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Abidjan, CI

On February 16th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS81 at robtex.

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