Autonomous system
AS16478 COLONIALNET-IU20
Unclassified ARIN
Summary
Colonial IU 20
education government infrastructure
The holder's name ends in a number, and the number is not an address, a block or a version. It is which agency this is.
What it's used for
- A regional education agency's network. Two prefixes announced from the United States, one of them IPv6, four thousand and ninety-six addresses, through three observed BGP neighbours.
Notable
- The holder's name is a word, two initials for an intermediate unit, and a number. The number identifies the agency among its peers, which is how these bodies are named in law rather than in marketing.
- The AS handle is the agency's brand with the word for a network attached, then the initials and number repeated from the holder field.
- The netname keeps only the brand and the network word, dropping the number entirely, so the field that most needs to distinguish this agency from the others leaves out the part that does.
- The single IPv4 block is one contiguous allocation, and an IPv6 prefix is announced beside it with no matching entry in the registry inventory.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- Numbered agencies are a filing system made public. Anyone inside the system knows which one this is; everyone outside sees a name that looks unfinished.
- An agency serving schools across a region routes for institutions that will never run their own networks. Four thousand addresses behind three upstreams is a small utility, and its users are buildings rather than customers.
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 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 4.10K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS16478- Registry name
- COLONIALNET-IU20
- Registrant
- Colonial IU 20
- Abuse contact
- arin@ciu20.org
- Registered
- 2005-06-20
- Last changed
- 2016-05-27
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Colonial IU 20
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 21 valid, 0 with no ROA
- ROAs
- 21 authorising AS16478
- ASPA
- no ASPA record
- IRR
- 100% registered · 21 of 21 announcements
- Route objects
- 41 naming AS16478
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 1,778 prefixes, as published 2026-10-20. 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