Autonomous system
AS17025 ZAYO-CUSTOMER-17025
Unclassified ARIN
Summary
Zayo Bandwidth
transit leased enterprise education
ZAYO-CUSTOMER-17025 is operated by Zayo Bandwidth.
What it's used for
- The address space carries a mix of enterprise and educational traffic, evidenced by registrants such as
Northwest Nazarene University(netnamesNNU-2,NNU-199-104),BAE Systems Inc.(BAE-SYSTEMS-INC), andSiemens Industry Inc., Building Technology Division(ABOV-Z00020-64-124-134-0-24). - With 14,592 IPv4 addresses announced across 42 prefixes and only 6 observed neighbours, the ratio suggests a transit or aggregation role rather than a large-scale access network, consistent with Zayo's infrastructure provider status.
Notable
- Registrants vary significantly from the announcer, including
Northwest Nazarene University,BAE Systems Inc.,Lansing Technology,Escalate,Siemens Industry Inc.,TERRASPRING, andLatisys-Denver, LLC, indicating the AS aggregates space for multiple distinct customers. - Zayo Bandwidth is the current holder, having acquired the assets of Level 3 Communications, which previously operated this AS number.
- The inventory includes two IPv6 prefixes (
2001:438:38::/48,2001:438:8022::/48) alongside a fragmented IPv4 estate with many /24 blocks.
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.
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
IPv4 42 prefixes · 14.85K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 44 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS17025- Registry name
- ZAYO-CUSTOMER-17025
- Registrant
- Zayo Bandwidth
- Abuse contact
- abuse@zayo.com
- Registered
- 2000-07-14
- Last changed
- 2023-05-10
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Zayo Bandwidth
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 62% valid · 32 valid, 20 with no ROA
- ROAs
- 49 authorising AS17025
- ASPA
- no ASPA record
- IRR
- 29% registered · 15 of 52 announcements 4 other origin
- Route objects
- 28 naming AS17025
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