Autonomous system
AS31986 TENASKA-INC
Unclassified ARIN
Summary
Tenaska
energy business corporate
The AS handle TENASKA-INC is held by Tenaska, Inc.
What it's used for
- The address space carries corporate infrastructure for an energy company, evidenced by netnames
DAL-TENASKAandQTS-TENASKAwhich suggest site-specific or data center allocations. - The AS announces 512 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
Notable
- The registrants for both prefixes are listed as
Private Customer, which aligns with the holder being a private company. - Tenaska is one of the largest privately held independent energy companies in the United States, operating in natural gas marketing, power marketing, and generation.
- The inventory consists of two contiguous /24 blocks (208.87.149.0/24 and 208.87.150.0/24) with no IPv6 prefixes announced.
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 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS31986- Registry name
- TENASKA-INC
- Registrant
- Tenaska, Inc.
- Abuse contact
- enterprisenetworkteam@tenaska.com
- Registered
- 2024-12-12
- Last changed
- 2024-12-12
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 4 authorising AS31986
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 5 naming AS31986
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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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