Autonomous system
AS27400 CLEARFLY
Residential APNIC Cable/DSL/ISP
Summary
Clearfly Communications
cable dsl isp residential
The AS handle CLEARFLY is operated by Clearfly Communications.
What it's used for
- The address space carries residential and business internet access, evidenced by netnames such as
CLEARFLY-NB-1throughCLEARFLY-NB-4and reverse DNS entries following the patternas27400.net. - The AS announces 7168 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, while maintaining 16 observed neighbours; this ratio of address space to peering partners is consistent with an access network provider rather than a transit carrier.
Notable
- All registrants for the announced prefixes are listed as Clearfly Communications, aligning perfectly with the AS holder.
- Secondary sources identify the operator as also known as Greenfly Networks, Inc., indicating a corporate rename or rebranding history.
- The inventory consists of four distinct IPv4 blocks, including /21s and a /22, alongside a single /32 IPv6 prefix, representing a consolidated but modest address estate for a regional ISP.
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
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 206.81.80.221 |
| Interconnection eXchange Denver | Denver, United States | 206.53.175.37 |
Transit providers
11 upstream, 0 downstream and 16 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 7.17K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 5 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS27400- Registry name
- CLEARFLY
- Registrant
- Clearfly Communications
- Abuse contact
- abuse@clearfly.net
- Registered
- 2007-11-29
- Last changed
- 2020-04-24
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Clearfly Communications
- Also known as
- Greenfly Networks, Inc.
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-CLEARFLY- Present at
- 2 exchanges
- Facilities
- 3 facilities
- Website
- https://www.clearfly.net/
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 · 9 valid, 0 with no ROA
- ROAs
- 5 authorising AS27400
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 9 naming AS27400
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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