Autonomous system
AS19661 SUSQ-BALA
Unclassified ARIN
Summary
Susquehanna International Group
business finance corporate
The AS handle SUSQ-BALA is held by Susquehanna International Group, LLP.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by netnames consistently set to
SIGand registrants listed asSusquehanna Investment Group, GP; DNSAdmins; Network Operations Center. - The AS announces 65,280 IPv4 addresses across 33 prefixes and 1 IPv6 prefix, while maintaining only 7 observed neighbours; this high address-to-neighbour ratio indicates a private corporate estate rather than a transit or access provider.
Notable
- Registrants align with the announcer, with all sampled prefixes registered to
Susquehanna Investment Group, GP. - The address inventory is finely subdivided into numerous /20, /21, /22, and /23 blocks within the 141.162.0.0/16 range, reflecting site-by-site segmentation typical of a large financial institution's internal network.
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
Recorded at 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Ashburn | Ashburn, United States | 2001:504:0:2:0:1:9661:1 |
| Equinix Internet Exchange Chicago | Chicago, United States | 208.115.136.213 |
| Equinix Internet Exchange New York | New York, United States | 198.32.118.12 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 33 prefixes · 65.28K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 34 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS19661- Registry name
- SUSQ-BALA
- Registrant
- Susquehanna International Group, LLP
- Abuse contact
- frank.belfie@sig.com
- Registered
- 2001-01-31
- Last changed
- 2019-01-09
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Susquehanna Partners
- Also known as
- SIG, LLP
- Scope
- Regional
- Traffic ratio
- Not Disclosed
- Peering policy
- Restrictive
- Present at
- 3 exchanges
- Facilities
- 2 facilities
- Website
- http://www.sig.com
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
- 0% valid · 0 valid, 14 with no ROA
- ROAs
- 3 authorising AS19661
- ASPA
- no ASPA record
- IRR
- 29% registered · 4 of 14 announcements
- Route objects
- 11 naming AS19661
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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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