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Data as of Nov 6, 2026

207.198.136.0/21

Anonymizer · ISP proxy

Charter Communications LLC · space held by NTT America, Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS20115
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Nov 6, 2026
its first announcement on record
IPv4 market

Path

Announced by AS20115 since Nov 6, 2026 · this week
1 · Holder
NTT America, Inc.
record created Sep 24, 1996
2 · Leased from
Rackdog
for its owner NTT America, Inc.
3 · Announced by
AS20115 Charter Communications LLC
since Nov 6, 2026 · this week
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 207.198.136.0/21/24s
Rackdog
2,048100%
8
Leased from

Owners leasing their own space

NameIn 207.198.136.0/21/24s
NTT America, Inc.
2,048100%
8

Lineage

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

207.198.136.0/21

From the registry to its use

  1. Sep 24, 1996
    Registry record
    NTT America, Inc.
    Direct Allocation (legacy, pre-1997)
    207.198.128.0/17
  2. May 9, 2005– Jun 27, 2016
    Announced
    AS2914 NTT America, Inc.
    as part of 207.198.128.0/17
    207.198.128.0/17
  3. Aug 15, 2016– today
    Announced
    AS2914 NTT America, Inc.
    as part of 207.198.128.0/17
    207.198.128.0/17
  4. Oct 8, 2026
    Assigned
    RCN
    Reassigned
    207.198.136.0/21
  5. Nov 6, 2026– today
    Announced
    AS20115 Charter Communications LLC
    Internet provider

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
207.198.128.0/17
since Aug 2016
AS2914Internet providerNTT America, Inc.

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
207.198.128.0/1732,768NTTA-207-198-128NTT America, Inc. (NTTAM-1) · USDirect AllocationSep 24, 1996abuse@ntt.net
└ 207.198.136.0/212,048RCN-207-198-136RCN (C11732741) · USReassignedOct 8, 2026abuse@ntt.net
via NTTA-207-198-128

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
NTT America, Inc.
Handle
NTTAM-1
Range
207.198.128.0/17
Registration type
Direct Allocation
Record created
Sep 24, 1996
Legacy
yes
Origin network

AS20115

US
Name
Charter Communications LLC
Type
Internet provider
Registered
Mar 26, 2001
Domain
charter.com
Website
www.spectrum.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed