asn.dev

Autonomous system

AS19107 YMAX-AS

Unclassified ARIN

IPv4 addresses 2.05K 5 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

Ymax Communications

United States of America · AI-generated

business legacy isp

The AS handle YMAX-AS is held by Ymax Communications Corp.

What it's used for

  • The address space carries legacy dial-up and early broadband infrastructure, evidenced by reverse DNS entries such as talk4free.com and netnames like YMAX-COM and JUNO-BLK2.
  • The AS announces 2048 IPv4 addresses across 5 prefixes with only 2 observed neighbours, a ratio that suggests a small, isolated access or legacy network rather than a transit provider.

Notable

  • Registrants are largely consistent with the announcer, with four of five prefixes registered to Ymax Communications Corp, while one prefix (216.225.8.0/23) is registered to UNITED ONLINE INC.
  • The address inventory consists of five small IPv4 blocks, including a mix of /23 and /24 prefixes, with no IPv6 prefixes in the 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

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

ASNetworkPaths seen
AS17378TierPoint, LLC354
AS701Verizon Business118

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 5 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America5

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS19107
Registry name
YMAX-AS
Registrant
Ymax Communications Corp
Abuse contact
abuse@ymaxcorp.com
Registered
2007-12-19
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
38% valid · 3 valid, 5 with no ROA
ROAs
24 authorising AS19107
ASPA
no ASPA record
IRR
75% registered · 6 of 8 announcements
Route objects
4 naming AS19107

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