asn.dev

Autonomous system

AS16636 CWF-ASN-BGP

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 1 0 downstream
Flagged prefixes 0 none

Summary

The Colonial Williamsburg Foundation

United States of America · AI-generated

business enterprise infrastructure

The reverse zone sits under a town's own domain rather than the foundation's.

What it's used for

  • A foundation's network. One IPv4 prefix announced from the United States, no IPv6, two hundred and fifty-six addresses, through two observed BGP neighbours.

Notable

  • The AS handle is three initials followed by two acronyms: the letters for an autonomous system number, and the letters for the routing protocol that carries it.
  • The single block is registered to the holder under a netname of those same three initials and a two-digit counter, on the only block in inventory.
  • All three queried addresses answered, each with the same shape: a four-letter label meaning customer, the address with hyphens, the three initials again, then a town name under a two-letter country suffix.
  • The organisation's reverse names therefore live inside a domain named for a place, not for the holder.

Interesting

  • A handle carrying both the words for the number and for the protocol states what the record is twice. Every entry in the registry is an autonomous system, and every one of them is announced by that protocol.
  • A two-digit counter on a single block is numbering borrowed from a larger scheme, or a ticket reference that happened to end up in a public field.
  • A domain named for the town under a country suffix is an organisation whose identity is the place. The reverse names say where these machines are before they say whose they are.

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
AS32425Pixel Factory65

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-17, 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
AS16636
Registry name
CWF-ASN-BGP
Registrant
The Colonial Williamsburg Foundation
Abuse contact
itnetworkstaff@cwf.org
Registered
2024-01-03
Last changed
2024-01-03
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS16636
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS16636

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 1,783 prefixes, as published 2026-10-17. 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