asn.dev

Autonomous system

AS40170 MTR0-01

Unclassified ARIN

IPv4 addresses 3.07K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 7 0 downstream
Flagged prefixes 0 none

Summary

InterMetro Communications

United States of America · AI-generated

voip wholesale telecom business

MTR0-01 is held by InterMetro Communications, Inc.

What it's used for

  • The address space carries wholesale voice and data services, evidenced by reverse DNS entries such as dialup.intermetro.net and kansascity.metroswitch.net.
  • The AS announces 3072 IPv4 addresses across 2 prefixes and maintains 7 observed neighbours, a ratio consistent with a specialized service provider rather than a large residential access network.
  • Traffic from this AS consists of VoIP media and signalling, as well as wholesale data backhaul for business clients, reflecting the operator's focus on private, proprietary VoIP infrastructure.

Notable

  • Registrants for both announced prefixes (204.90.56.0/21 and 208.73.44.0/22) are listed as Intermetro Communications, Inc., matching the AS holder.
  • The address inventory is compact, consisting of two distinct IPv4 blocks with no announced IPv6 prefixes.

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

7 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC504
AS701Verizon Business90
AS20001Charter Communications Inc54
AS11320LightEdge Solutions41
AS12271Charter Communications Inc35
AS2914NTT America, Inc.31
AS7018AT&T Enterprises, LLC24

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 2 prefixes · 3.07K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40170
Registry name
MTR0-01
Registrant
Intermetro Communications, Inc.
Abuse contact
chris.fogel@intermetro.net
Registered
2006-08-08
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 12 with no ROA
ROAs
1 authorising AS40170
ASPA
no ASPA record
IRR
100% registered · 12 of 12 announcements
Route objects
5 naming AS40170

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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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