asn.dev

Autonomous system

AS15276 ZENDA-ASN - Zenda Telephone

Unclassified ARIN

IPv4 addresses 512 1 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

Zenda Telephone

United States · AI-generated

telecom isp business

A rural telephone company with one block, one upstream and nothing published.

What it's used for

  • A small telephone company's network. A single IPv4 /23 announced from the United States, no IPv6, and one observed BGP neighbour.

Notable

  • The netname is the company's two initials and a number, one of the shortest labels in this range.
  • The registrant and the AS handle both name the company, with the handle appending the abbreviation for autonomous system.
  • Three addresses were queried for reverse DNS and none returned a name.
  • Five hundred and twelve addresses, announced as a single route.
  • The block sits in space that predates the modern allocation policies, which is consistent with a telephone company that has held it since it first connected.

Interesting

  • One upstream means this network has an AS number for portability rather than for redundancy. If the provider fails, the block goes with it; what the number buys is the ability to change providers without renumbering subscribers.
  • Five hundred and twelve addresses is the size of a village exchange. It suggests subscribers behind shared addressing rather than one address each.
  • Nothing answering in reverse is unusual for a subscriber network, where providers normally generate names from the address automatically. Here nobody set that up, or it was switched off.

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
AS13329Kansas Fiber Network, LLC64

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-10, 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 1 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS15276
Registry name
ZENDA-ASN
Registrant
Zenda Telephone
Abuse contact
abuse@westco.net
Registered
2018-05-18
Last changed
2023-11-08
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS15276
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
2 naming AS15276

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: 454 networks and 1,847 prefixes, as published 2026-11-11. 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