Autonomous system
AS10730 SN-DFO
Unclassified ARIN
Summary
Syndeo Networks, Inc.
enterprise isp legacy
SN-DFO is held by Syndeo Networks, Inc., a networking and managed-IT company based in St. Charles, Illinois. It builds and operates fibre connectivity, VoIP and managed network services for business customers across northern Illinois, and also manages address space on behalf of a handful of other organisations, including a municipal utility.
What it's used for
The routed footprint is minimal: RIS observes a single announced IPv4 prefix, 162.220.156.0/24 — 256 addresses — no IPv6, and 2 observed neighbours. Two neighbours is a plain dual-upstream arrangement, and a single /24 is the smallest globally routable unit. Nothing in the routing suggests a wholesale role; this looks like the company's own portable block, used for its network core, management and service endpoints, rather than a large pool handed out to customers.
That is worth stating plainly because the business description alone might suggest a bigger network. A regional fibre and managed-services provider often delivers connectivity over circuits and address space belonging to a carrier partner, or announces customer address space from other ASNs entirely. What is visible from this AS number is a small provider edge, not a mass-market access network — so treat any geolocation of these 256 addresses as "the operator's own infrastructure in northern Illinois", not as an end-user pool.
Notable
The handle SN-DFO looks like an internal designator (the DFO fragment is suggestive of dark-fibre optics, matching the company's fibre business) rather than anything meaningful about the network's role. Handles in this era of the registry are frequently department or product codes and should never be read as a classification.
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 2026-10-25, 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 · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10730- Registry name
- SN-DFO
- Registrant
- Syndeo Networks, Inc
- Abuse contact
- support@syndeonetwork.com
- Registered
- 1997-11-07
- Last changed
- 2015-09-08
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS10730
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 1 announcements 1 other origin
- Route objects
- 3 naming AS10730
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 1,779 prefixes, as published 2026-10-24. 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