asn.dev

Autonomous system

AS19794 CEMENTWORKS - The Cementworks LLC

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

The Cementworks LLC

United States of America · AI-generated

business small us

CEMENTWORKS is the AS handle for The Cementworks LLC.

What it's used for

  • The address space carries a single /24 prefix, 168.100.14.0/24, with the netname CLOUD9-NETB and registrant Cloud 9 Internet, Inc.
  • Reverse DNS entries point to thebloc.com (e.g., 14-64.thebloc.com), indicating the space is used for hosting or service delivery rather than residential access.
  • The AS announces 256 IPv4 addresses with only 2 observed neighbours, a ratio consistent with a small, self-contained business or hosting operation rather than a transit provider.

Notable

  • The RDAP registrant for the announced prefix is Cloud 9 Internet, Inc., which differs from the AS holder The Cementworks LLC, suggesting a lease or historical relationship between the entities.
  • The inventory consists of a single contiguous /24 block with no IPv6 prefixes, representing a minimal and focused address estate.

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
AS12271Charter Communications Inc60
AS6079RCN3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, 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
AS19794
Registry name
CEMENTWORKS
Registrant
The Cementworks LLC
Abuse contact
gilad@thebloc.com
Registered
2006-09-06
Last changed
2019-08-07
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS19794
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS19794

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: 447 networks and 1,843 prefixes, as published 2026-11-02. 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