Autonomous system
AS7133 NYPP-AS
Unclassified ARIN
Summary
New York Independent System Operator (NYISO)
enterprise legacy
NYPP-AS belongs to the New York Independent System Operator, the not-for-profit corporation that operates New York State's bulk electric grid and runs its wholesale electricity markets, from Rensselaer, New York.
What it's used for
- NYISO's own operational and corporate networking: grid control-room systems, market clearing and settlement platforms, and connectivity to the market participants and transmission owners it coordinates with.
- Announces a very small footprint:
204.152.46.0/24,204.152.47.0/24and2620:44::/48.
Notable
- The handle
NYPPstands for the New York Power Pool, the utility consortium that coordinated the state's grid before NYISO took over that role in the late 1990s. The AS number and its handle predate the current organisation, and were carried across the transition. - Two /24s is deliberately tiny. A grid operator's critical systems are not internet-facing; the public address space is only the outward edge of a heavily segregated network.
Interesting
- Independent system operators are an unusual kind of internet holder: neither government agency nor commercial company, but a neutral coordinator that both utilities and generators are obliged to work through.
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 2026-10-18, 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 · 512 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS7133- Registry name
- NYPP-AS
- Registrant
- New York Independent System Operator, Inc.
- Abuse contact
- ipsupport@nyiso.com
- Registered
- 1996-09-13
- Last changed
- 2012-04-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS7133
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 4 naming AS7133
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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