asn.dev

Autonomous system

AS36127 MCPS

Unclassified ARIN Enterprise

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Miller Canfield

United States of America · AI-generated

business legal enterprise corporate

MCPS is the autonomous system for Miller Canfield, a major American law firm.

What it's used for

  • The space carries corporate infrastructure for the law firm, evidenced by the netname MCPS-01 and registrant Miller Canfield.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with 3 observed neighbours, indicating a small, self-contained enterprise network rather than a transit or access provider.

Notable

  • The registrant Miller Canfield matches the AS holder, confirming direct ownership of the address space.
  • The address inventory consists of a single /24 block (134.195.52.0/24) and a /48 IPv6 prefix, typical for a single-site corporate deployment.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Detroit Internet ExchangeDetroit, United States209.124.52.67

Transit providers

3 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12129123.Net, Inc.96
AS33668Comcast Cable Communications, LLC4
AS20205Amplex Electric, Inc.1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36127
Registry name
MCPS
Registrant
Miller Canfield
Abuse contact
hostmaster@millercanfield.com
Registered
2020-04-10
Last changed
2020-04-10
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
Miller Canfield
Network type
Enterprise
Scope
Regional
Traffic ratio
Mostly Outbound
Peering policy
Selective
IRR as-set
AS-MCPS
Present at
1 exchanges
Website
http://www.millercanfield.com

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS36127
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS36127

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check