asn.dev

Autonomous system

AS22385 JMS-ASN

Unclassified ARIN

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Janney Montgomery Scott

United States of America · AI-generated

business finance corporate

JMS-ASN is the autonomous system for Janney Montgomery Scott, LLC.

What it's used for

  • The address space carries corporate infrastructure, evidenced by the netname JMS-US-EXTERNAL and reverse DNS entries pointing to jmsonline.com.
  • The AS announces 512 IPv4 addresses within a single prefix (204.115.190.0/23) and maintains only 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

  • The RDAP registrant Janney Montgomery Scott, LLC matches the registry holder, confirming consistent ownership of the address space.
  • The inventory consists of a single contiguous /23 block, reflecting a compact corporate estate without significant subdivision or external peering complexity.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS17378TierPoint, LLC118

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS22385
Registry name
JMS-ASN
Registrant
Janney Montgomery Scott, LLC
Abuse contact
sboulger@janney.com
Registered
2011-01-26
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS22385
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS22385

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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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