asn.dev

Autonomous system

AS23347 ZYC

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 16 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 8 0 downstream
Flagged prefixes 0 none

Summary

ZYC Network

United States of America · AI-generated

isp cable dsl residential

The AS handle ZYC is held by ZYC Network LLC.

What it's used for

  • The space carries residential or small business access traffic, indicated by the netname ZYC-NAT-02 and the PeeringDB classification as a Cable/DSL/ISP.
  • The AS announces 256 IPv4 addresses and 12 IPv6 prefixes against 19 observed neighbours, a ratio consistent with an access network providing last-mile connectivity.

Notable

  • The RDAP registrant for the announced IPv4 prefix 23.156.153.0/24 is ZYC Network LLC, which matches the AS holder.
  • The address inventory consists of a single IPv4 /24 block and a set of IPv6 prefixes under the 2602:814::/32 range, suggesting a focused allocation for a specific service area.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Local Internet Exchange FrankfurtFrankfurt, Germany185.1.166.23

Transit providers

8 upstream, 0 downstream and 8 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3204xTom OU96
AS17433Hytron Network Services Limited62
AS142064VergeTel56
AS44324MoeDove LLC35
AS6939Hurricane Electric LLC20
AS24482SG.GS4
AS401753BIXCE Inc4
AS56662Marcin Gondek2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 · 256 addresses IPv6 16 prefixes

CountryNamePrefixes
USUnited States of America17

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS23347
Registry name
ZYC
Registrant
ZYC Network LLC
Abuse contact
zyc@zyc.name
Registered
2024-01-10
Last changed
2024-09-04
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
6 authorising AS23347
ASPA
11 declared providers
IRR
100% registered · 7 of 7 announcements
Route objects
23 naming AS23347

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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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