MCNC
United States
US
121
announced
2,055,424
0 IPv6
ARIN
regional registry
Prefix size breakdown
Distribution of the 121 BGP prefixes announced by AS81 grouped by CIDR length.
/14
1
/15
4
/16
10
/17
6
/18
13
/19
13
/20
12
/21
9
/22
17
/23
13
/24
23
First: 128.109.0.0/16 · Last: 206.211.64.0/19
Top cities by IPv4 footprint
Cities where AS81's prefixes resolve, weighted by address count.
Jamestown
North Carolina, US
19.5%
Raleigh
North Carolina, US
14.4%
Wilmington
North Carolina, US
9.8%
Southern Pines
North Carolina, US
9.7%
Fayetteville
North Carolina, US
5.2%
Announced prefixes
121 prefixes
Other ASNs in United States
- AS749United States Department of Defense DoD2,715
- AS7018AT&T Enterprises, LLC22,556
- AS7922Comcast Cable Communications, LLC26,172
- AS701Verizon Business15,055
- AS721United States Department of Defense DoD5,112
- AS3356Level 3 Parent, LLC4,486
- AS174Cogent Communications, LLC8,915
- AS14618Amazon.com, Inc.980
- AS6167Verizon Business1,513
- AS714Apple Inc.30
Verify on third-party BGP tools
Cross-check AS81 on public looking-glass and BGP-data sites.
Try our other tools
Free, no sign-up. Pivot between tools without losing context.
What's My IP
Reveal your public IP and approximate location.
IP Lookup
Geolocate any IPv4 or IPv6 address.
Domain to IP Lookup
Resolve any domain to its IP and geo data.
DNS Lookup
Inspect A, AAAA, MX, NS, TXT, CNAME and more.
IPv4 to IPv6 Converter
Convert IPv4 to mapped, 6to4 and NAT64 IPv6 notations.
IPv6 to IPv4 Converter
Extract the embedded IPv4 from any IPv6 address.
ASN Directory
Browse autonomous systems, prefixes and ranks.
Frequently Asked Questions
Everything you need to know before integrating Ip2Geo: billing, security, and developer tooling.
Sign up for the free plan to get started, this helps us keep the service reliable for everyone. You'll still get 1,000 free conversions every month.
Yes! We provide SDKs for Node.js, Bun, Deno, and more. You can also use our REST API directly. Most developers are up and running in under 5 minutes.
Absolutely. We use industry-standard encryption and security practices to protect your data at rest and in transit.
We offer SDKs, a REST API, detailed documentation, API key management, usage analytics, and a cloud dashboard. Everything a developer needs.
We offer 24/7 support via email. Enterprise customers get dedicated support with priority response times.
Our infrastructure is optimized for speed with edge caching, efficient IP lookup algorithms, and globally distributed servers for minimal latency.