asn.dev

Autonomous system

AS13606 LEANDERTX-AS1

Unclassified ARIN

IPv4 addresses 768 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

City of Leander

United States · AI-generated

government education infrastructure

A city announces a university system's block alongside one its cable provider registered for it.

What it's used for

  • A municipal government's network. 768 addresses across two IPv4 prefixes, two observed BGP neighbours, and no IPv6 announced.

Notable

  • 206.77.104.0/23 is netname THENET-CIDR-5, registered to a state university system.
  • 65.36.60.0/24 is netname GRANDECOM-CITYOFLEANDER, registered to the city.
  • Three of six sampled addresses answered, as 65-36-60-64.static.grandenetworks.net and similar.
  • The AS handle ends in a counter, implying a second number was expected.

Interesting

  • A city holding space from a higher education network is a leftover from how regional connectivity was built. Universities ran the networks that everyone else joined, so municipal and school district addresses were assigned out of academic allocations and never moved.
  • That netname says the object was cut when addressing switched from fixed classes to arbitrary prefix lengths, and it was the fifth such block. It is a dated artefact used daily.
  • The other block's netname joins the provider to the customer, and the reverse names sit under the provider's domain, so an outsider learns who the city buys its connectivity from before learning anything about the city.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6922Texas Department of Information Resources116
AS7459Grande Communications Networks, LLC58

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 2 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13606
Registry name
LEANDERTX-AS1
Registrant
City of Leander, Texas
Abuse contact
ARIN1@leandertx.gov
Registered
2023-08-08
Last changed
2023-08-08
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS13606
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
10 naming AS13606

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 1,852 prefixes, as published 2026-10-27. 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