ASN LANDING PAGE

AS81

NCREN - MCNC

Last updated · Jul 20, 2026

Country

—

Total prefixes

137

IPv4 prefixes

133

IPv6 prefixes

ASN summary

How to read the scale of AS81

NCREN - MCNC currently reports 137 prefixes and 44 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.

What can an ASN page answer?

An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.

How should you read the organization and region fields?

NCREN - MCNC is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.

How should you verify the AS81 result?

The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.

How to verify this ASN result

AS81 ASN lookupAS81 BGPAS81 peersAS81 prefixesAS81 upstreamsNCREN - MCNC ASN

Upstreams

Detailed data for this ASN is not available right now.

Downstreams

Peers

AS174

—

AS3356

—

AS7018

—

AS11426

—

AS11164

—

AS6461

—

AS11537

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Prefix inventory

Prefix	Name	Country
128.109.0.0/16	AS81	—
152.10.0.0/16	AS81	—
152.11.0.0/16	AS81	—
152.12.0.0/16	AS81	—
152.18.0.0/16	AS81	—
152.20.0.0/16	AS81	—
152.21.0.0/16	AS81	—
152.22.0.0/16	AS81	—
152.22.32.0/21	AS81	—
152.22.40.0/21	AS81	—
152.22.48.0/21	AS81	—
152.22.64.0/21	AS81	—
152.22.72.0/21	AS81	—
152.22.80.0/21	AS81	—
152.26.0.0/16	AS81	—
152.26.208.0/24	AS81	—
152.26.209.0/24	AS81	—
152.26.210.0/24	AS81	—
152.26.211.0/24	AS81	—
152.26.212.0/24	AS81	—
152.26.213.0/24	AS81	—
152.26.44.0/24	AS81	—
152.26.69.0/24	AS81	—
152.27.0.0/16	AS81	—
152.27.12.0/24	AS81	—
152.28.0.0/16	AS81	—
152.28.1.0/24	AS81	—
152.29.0.0/16	AS81	—
152.30.0.0/16	AS81	—
152.30.10.0/24	AS81	—
152.30.92.0/22	AS81	—
152.30.92.0/24	AS81	—
152.32.0.0/18	AS81	—
152.35.0.0/16	AS81	—
152.38.0.0/18	AS81	—
152.38.160.0/19	AS81	—
152.38.17.0/24	AS81	—
152.38.18.0/24	AS81	—
152.38.192.0/20	AS81	—
152.38.208.0/20	AS81	—

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Related lookups and next steps

Frequently asked questions about this ASN page

What does AS81 represent?

AS81 is an autonomous system number. The current source associates it with NCREN - MCNC and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.

What are peers, upstreams, and prefixes useful for on the AS81 page?

They help explain the scale, interconnection depth, and route structure of AS81. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.

What should you do after reviewing AS81?

Open a concrete IP page to check how the address maps into AS81, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.