Autonomous system
AS13829 PIMACOUNTY
Unclassified ARIN
Summary
Pima County
government business infrastructure
Fourteen prefixes, all inside one parent range, all one netname, and a single upstream behind all of them.
What it's used for
- A county government's network. 65,536 addresses across 14 IPv4 prefixes, one observed BGP neighbour, and no IPv6 announced.
Notable
- Every prefix begins
159.233, and together they account for the entire parent range. - Every record that answered gives netname
PIMACO, the county shortened to six letters. - Sizes run from a
/17down to four/24s, with/18,/20,/21,/22and/23pieces between. - One block's registry lookup failed and returned nothing.
- Eighteen addresses were queried for reverse DNS and none returned a name.
Interesting
- Splitting a whole parent range into fourteen announcements while sending them all to one upstream buys nothing in routing terms. Each piece takes a slot in every router on the internet, and with a single path there is no second route for any of them to prefer.
- Shapes like this usually come from internal segmentation leaking outward: departments were given their own pieces, and the pieces were announced individually because that is how they were configured.
- A county holding a full parent range dates the allocation to when local government could ask for one.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS22773 | Cox Communications Inc. | 178 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-29, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 14 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13829- Registry name
- PIMACOUNTY
- Registrant
- Pima County
- Abuse contact
- debbie.mcneil@pima.gov
- Registered
- 2013-05-20
- Last changed
- 2013-05-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS13829
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS13829
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 1,849 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