asn.dev

Autonomous system

AS31787 MPORTHO

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

MicroPort Orthopedics

United States of America · AI-generated

business medical corporate internal

MPORTHO is the autonomous system for MicroPort Orthopedics, Inc.

What it's used for

  • The space carries internal corporate traffic, evidenced by the netname TWTC-MPO and reverse DNS entries pointing to static.ctl.one.
  • The AS announces 256 IPv4 addresses within a single /24 prefix (64.129.86.0/24) and maintains 2 observed neighbours, a ratio indicating a small, self-contained internal network rather than a transit or access provider.

Notable

  • The RDAP registrant MicroPort Orthopedics Inc aligns directly with the AS holder MPORTHO - Microport Orthopedics, Inc.
  • MicroPort Orthopedics was established in January 2014 as a subsidiary of MicroPort Scientific Corp., focusing on joint replacement devices.
  • The address inventory consists of a single contiguous /24 block, typical of a corporate site or office network.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC55
AS22258Comcast Cable Communications, LLC5

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS31787
Registry name
MPORTHO
Registrant
Microport Orthopedics, Inc.
Abuse contact
les.boyce@wmt.com
Registered
2003-12-19
Last changed
2014-03-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS31787
ASPA
no ASPA record
IRR
0% registered · 0 of 1 announcements
Route objects
0 naming AS31787

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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