asn.dev

Autonomous system

AS46637 ROCK-FALLS-FIBERNET

Unclassified ARIN

IPv4 addresses 8.19K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Rock Falls FiberNet

United States of America · AI-generated

municipal fiber residential business

The AS handle ROCK-FALLS-FIBERNET is held by City of Rock Falls.

What it's used for

  • The address space carries municipal fiber and wireless services, evidenced by netnames ROCKFALLSFIBERNET-1, SAWL-1, and CRF-17, and reverse DNS entries pointing to surfairwireless.net.
  • The network announces 8192 IPv4 addresses across 3 prefixes and maintains a single observed neighbour, a ratio indicative of a local access network rather than a transit provider.
  • Traffic consists of residential and business subscribers in Rock Falls, Illinois, utilizing the city's fiber-to-the-home infrastructure for high-speed internet connectivity.

Notable

  • Registrants include Surf Internet, Surf Air Wireless, LLC, and City of Rock Falls, reflecting the municipal ownership and associated service providers.
  • The inventory consists of three distinct IPv4 blocks with no announced IPv6 prefixes, representing a segmented municipal estate.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13428Surf Air Wireless, LLC198

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

Shape and geography

IPv4 3 prefixes · 8.19K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS46637
Registry name
ROCK-FALLS-FIBERNET
Registrant
City of Rock Falls
Abuse contact
abuse@surfairwireless.us
Registered
2018-01-17
Last changed
2018-01-17
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS46637
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
5 naming AS46637

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

Cross-check