LAYER3 INTEL
Get started
TripwireIntel APIIP IntelPricingBlogDocsContactSign in
Data as of Nov 3, 2026

48.45.40.0/21

Anonymizer · ISP proxy

Comcast Cable Communications, LLC · space held by AviationAI

Announcement
this exact prefix
RPKI valid
Announced by
AS7922
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin May 2026
its first announcement on record
IPv4 market

Path

Announced by AS7922 since May 2026 · 6 mo ago
1 · Holder
AviationAI
record created Dec 10, 2025
2 · Leased from
AviationAI
its owner, directly
3 · Announced by
AS7922 Comcast Cable Communications, LLC
since May 2026 · 6 mo ago
4 · Use
Proxy providersnamed FlashProxy
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 48.45.40.0/21/24s
FlashProxy
2,048100%
8
Leased from

Owners leasing their own space

NameIn 48.45.40.0/21/24s
AviationAI
2,048100%
8

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

48.45.40.0/21

From the registry to its use

  1. Dec 10, 2025
    Registry record
    AviationAI
    Direct Allocation
    48.44.0.0/14
  2. Apr 25, 2026– today
    Announced
    AS7922 Comcast Cable Communications, LLC
    as part of 48.45.32.0/20
    48.45.32.0/20
  3. May 19, 2026– today
    Announced
    AS7922 Comcast Cable Communications, LLC
    Internet provider
  4. today
    Leased from
    AviationAI
    Lessor
  5. today
    Used
    FlashProxy
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsRPKI
48.45.32.0/20
since Apr 2026
AS7922ISP proxyLessor AviationAI2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS7922

US
Name
Comcast Cable Communications, LLC
Type
Internet provider
Registered
Feb 14, 1997
Domain
comcast.com
Website
corporate.comcast.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed