Autonomous system
AS14585 CIFNET - CIFNet, Inc.
Unclassified ARIN NSP
Summary
CIFNet
isp hosting infrastructure
One IPv4 block and seventeen IPv6 announcements, sized in a doubling ladder.
What it's used for
- A provider's network. 2,048 addresses in a single IPv4 prefix, alongside seventeen IPv6 prefixes, with three observed BGP neighbours.
Notable
- The IPv6 announcements step through
/48,/48,/47,/46,/45,/44,/43,/42and/41, each twice the size of the one before, under a covering2604:65c0::/40. 208.76.168.0/21carries the netnameCIFNET-US-1, with separate operations and abuse contacts.- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- That ladder is what you get when a range is described exactly rather than approximately. Any contiguous span of addresses can be written as a set of aligned blocks, and if the span does not begin and end on a power-of-two boundary the set comes out as a sequence of doubling sizes. Seeing it announced this way means the operator asked a tool to cover a range and announced whatever the tool produced.
- The cost is seventeen entries in every routing table on the internet where one or two would carry the same traffic. IPv6 was meant to end this practice by making allocations large enough that nobody needed to split them.
- The imbalance is striking on its own: one modest IPv4 block against a very large IPv6 allocation, which is the correct shape for a network built after the old addresses ran out.
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 2026-11-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 2.05K addresses IPv6 17 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 18 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS14585- Registry name
- CIFNET
- Registrant
- CIFNet, Inc.
- Abuse contact
- abuse@cifnet.net
- Registered
- 2000-01-07
- Last changed
- 2012-03-02
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- CIFNet, Inc.
- Network type
- NSP
- Scope
- Regional
- Traffic ratio
- Mostly Outbound
- Peering policy
- Open
- IRR as-set
ARIN::AS-CIFNET- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- http://www.cifnet.com/
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
- 100% valid · 12 valid, 0 with no ROA
- ROAs
- 2 authorising AS14585
- ASPA
- no ASPA record
- IRR
- 100% registered · 12 of 12 announcements
- Route objects
- 13 naming AS14585
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: 455 networks and 1,849 prefixes, as published 2026-11-14. 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