asn.dev

Autonomous system

AS16766 -Reserved AS-

Unclassified ARIN

IPv4 addresses 9.98K 7 prefixes
IPv6 prefixes 10 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Island Technology, Inc.

United States of America · AI-generated

isp hosting business

The registry calls this number reserved, and it announces more sixth-version prefixes than fourth.

What it's used for

  • A provider's network. Seven IPv4 prefixes and ten sixth-version prefixes announced from the United States, nine thousand nine hundred and eighty-four addresses, through three observed BGP neighbours.

Notable

  • The AS handle is the registry's placeholder text for a number held in reserve, dashes included, rather than any name.
  • The holder line does give a name, the company's three words hyphenated in capitals.
  • All seven blocks are registered to that company under one netname: two letters and a three-digit number, with no word for a network and no counter.
  • Those two letters are the company's initials and also the usual abbreviation for a technology department, so the label reads two ways.
  • Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

  • The reserved placeholder is not unique to this holder. It is what a registry writes when the number's own record was never filled in, and it survives because nothing in routing reads that field.
  • More sixth-version prefixes than fourth is unusual and points at a provider that got its newer space in one grant and has been splitting it for customers, while the older space was accumulated a piece at a time.
  • One netname across two unrelated parent ranges means the company files by owner rather than by purpose, so the registry cannot tell you what any of it is for.

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

3 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS16509Amazon.com, Inc.3,107
AS15169Google LLC390
AS14618Amazon.com, Inc.129

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 7 prefixes · 9.98K addresses IPv6 10 prefixes

CountryNamePrefixes
USUnited States of America17

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS16766
Registry name
ISLAND-TECHNOLOGY-INC
Registrant
Island Technology, Inc.
Abuse contact
ipabuse@island.io
Registered
2025-08-22
Last changed
2025-12-18
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 74 valid, 0 with no ROA
ROAs
39 authorising AS16766
ASPA
4 declared providers
IRR
100% registered · 74 of 74 announcements
Route objects
107 naming AS16766

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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