asn.dev

Autonomous system

AS20187 PASSPORTHEALTH

Unclassified ARIN

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Passport Health Communications

United States of America · AI-generated

business corporate healthcare

The AS handle PASSPORTHEALTH is held by Passport Health Communications, Inc.

What it's used for

  • The address space carries corporate and production infrastructure, evidenced by the netnames PRODUCTION-AND-CORPORATE-NET and ISDN-PASSPORT.
  • The AS announces 1536 IPv4 addresses across 2 prefixes with 4 observed neighbours, indicating a small-scale internal corporate estate rather than a transit or access network.

Notable

  • Registrants align with the announcer, listing Passport Health Communications, Inc. for the larger block and Passport Health Communications for the smaller block.
  • The inventory consists of two distinct IPv4 prefixes: 199.96.232.0/22 and 207.65.76.0/23, with no IPv6 prefixes in inventory.

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

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

ASNetworkPaths seen
AS13649Flexential Colorado Corp.245
AS19551Incapsula Inc106
AS3549Level 3 Parent, LLC4
AS19151BroadbandONE, LLC1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 1.54K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS20187
Registry name
PASSPORTHEALTH
Registrant
Passport Health Communications, Inc.
Abuse contact
craig.brandstetter@experian.com
Registered
2001-04-03
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 6 with no ROA
ROAs
0 authorising AS20187
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
9 naming AS20187

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: 442 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