Autonomous system
AS16491 VIASAT
Unclassified ARIN
Summary
ViaSat
isp telecom business
Seventeen prefixes, six naming schemes, three carriers' brands, and one netname that is just an address.
What it's used for
- A satellite provider's network. Seventeen IPv4 prefixes announced from the United States, no IPv6, ten thousand four hundred and ninety-six addresses, through eleven observed BGP neighbours.
Notable
- Three blocks are named by a backbone carrier: its initials, the company's brand cut to five letters, a number, and the address. Two of the three share one netname despite being different blocks.
- Five carry two letters, three for a city, and a digit. Two digits appear, so the scheme distinguishes sites rather than blocks.
- One block is registered to a second company under a netname that includes a year and the words for a primary block. Another is registered to a third carrier and names a brand that carrier absorbed, with the word for legacy in the middle.
- One netname is nothing but the address and its prefix length, hyphenated. It says only where the block is.
- The last block adds a country abbreviation and lists three contacts: an incident response team, the company, and a job description.
- The company's own name is written two ways across the registrant fields, one of them missing the space after the comma.
Interesting
- Two of eighteen queried addresses answered, both naming subscriber connections under a product brand's domain. The service has a name customers know, and it is not the one on the registry record.
- Address space gathered from three carriers is what a provider does when its own allocations run out.
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.
Transit providers
9 upstream, 2 downstream and 11 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 10.50K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 17 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS16491- Registry name
- VIASAT
- Registrant
- ViaSat, Inc.
- Abuse contact
- ARIN-Admin@viasat.com
- Registered
- 2013-07-23
- Last changed
- 2013-07-23
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 73% valid · 24 valid, 9 with no ROA
- ROAs
- 21 authorising AS16491
- ASPA
- no ASPA record
- IRR
- 64% registered · 21 of 33 announcements 4 other origin
- Route objects
- 30 naming AS16491
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