Autonomous system
AS11577 ADS-ASN
Unclassified ARIN
Summary
Vermont Agency of Digital Services
government legacy
ADS-ASN belongs to the Vermont Agency of Digital Services, the State of Vermont's central IT agency. It carries the state government's own network, historically known as GOVnet.
What it's used for
Every piece of evidence points the same way. RIS shows 7 announced IPv4 prefixes and 131,072 addresses with only 3 observed neighbours — two /16s (170.222.0.0/16 and 159.105.0.0/16) plus the /17 and /24 deaggregates a network announces for traffic engineering or to protect against hijack. Every single prefix is registered to the Vermont Agency of Digital Services itself, under the netnames GOVNET-VT-US and VTADSNET. There are no third-party registrants at all, which rules out the IP-leasing shape outright.
Sampled reverse DNS closes it: 159.105.0.5 resolves to rsa.cag.state.vt.us — a host in the state.vt.us zone, the State of Vermont's own domain. That is what the space carries: state agency systems, not customers.
Two /16s against three neighbours is the classic public-sector enterprise silhouette. A network this size that peered with hundreds of ASes would be a carrier; peering with a handful means it buys transit and serves one organisation.
Notable
Agency of Digital Services consolidated Vermont's state IT under one roof, so this AS is the routing home for state departments generally rather than any single department. It is a government network by holder, by registration and by what the addresses actually carry — a rare case where all three agree.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
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
IPv4 10 prefixes · 131K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 10 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11577- Registry name
- ADS-ASN
- Registrant
- Vermont Agency of Digital Services
- Abuse contact
- abuse@vermont.gov
- Registered
- 1998-10-09
- Last changed
- 2023-10-16
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 7 with no ROA
- ROAs
- 0 authorising AS11577
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 7 announcements
- Route objects
- 0 naming AS11577
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 1,771 prefixes, as published 2026-10-15. 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