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Data as of Nov 8, 2026

207.137.88.0/21

Anonymizer · ISP proxy1 residential-proxy exit · 30 days

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

Residential-proxy exits

Proxy exits
1
0.05% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Providers
2
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

5 observations

Proxy providers listing exits

  • DataImpulse
  • EVOPROXY
IPv4 market

Path

Announced by AS20115 since Nov 6, 2026 · 2 days ago
1 · Holder
NTT America, Inc.
record created May 15, 1996
2 · Leased from
Rackdog
for its owner NTT America, Inc.
3 · Announced by
AS20115 Charter Communications LLC
since Nov 6, 2026 · 2 days ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 207.137.88.0/21/24s
Rackdog
2,048100%
8
Leased from

Owners leasing their own space

NameIn 207.137.88.0/21/24s
NTT America, Inc.
2,048100%
8

Lineage

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

207.137.88.0/21

From the registry to its use

  1. May 15, 1996
    Registry record
    NTT America, Inc.
    Direct Allocation (legacy, pre-1997)
    207.137.0.0/16
  2. May 9, 2005– Jun 27, 2016
    Announced
    AS2914 NTT America, Inc.
    as part of 207.137.0.0/16
    207.137.0.0/16
  3. Aug 15, 2016– today
    Announced
    AS2914 NTT America, Inc.
    as part of 207.137.0.0/16
    207.137.0.0/16
  4. Oct 8, 2026
    Assigned
    RCN
    Reassigned
    207.137.88.0/21
  5. Oct 19, 2026
    Route object
    AS3320 Deutsche Telekom AG
    NTTCOM route object for AS3320 Deutsche Telekom AG, maintainer MAINT-NTTCOM-BB
  6. Oct 19, 2026
    Route object
    AS3491 PCCW Global (HK) Ltd.
    NTTCOM route object for AS3491 PCCW Global (HK) Ltd., maintainer MAINT-NTTCOM-BB
  7. Oct 19, 2026
    Route object
    AS4826 Vocus Connect International Backbone
    NTTCOM route object for AS4826 Vocus Connect International Backbone, maintainer MAINT-NTTCOM-BB
  8. Oct 19, 2026
    Route object
    AS6079 RCN
    NTTCOM route object for AS6079 RCN, maintainer MAINT-NTTCOM-BB
  9. Oct 19, 2026
    Route object
    AS7029 Windstream Communications LLC
    NTTCOM route object for AS7029 Windstream Communications LLC, maintainer MAINT-NTTCOM-BB
  10. Oct 19, 2026
    Route object
    AS7459 Grande Communications Networks, LLC
    NTTCOM route object for AS7459 Grande Communications Networks, LLC, maintainer MAINT-NTTCOM-BB
  11. Oct 19, 2026
    Route object
    AS10753 Level 3 Parent, LLC
    NTTCOM route object for AS10753 Level 3 Parent, LLC, maintainer MAINT-NTTCOM-BB
  12. Oct 19, 2026
    Route object
    AS11404 Wave Broadband
    NTTCOM route object for AS11404 Wave Broadband, maintainer MAINT-NTTCOM-BB
  13. Oct 19, 2026
    Route object
    AS20115 Charter Communications LLC
    NTTCOM route object for AS20115 Charter Communications LLC, maintainer MAINT-NTTCOM-BB
  14. Oct 19, 2026
    Route object
    AS22773 Cox Communications Inc.
    NTTCOM route object for AS22773 Cox Communications Inc., maintainer MAINT-NTTCOM-BB
  15. Oct 19, 2026
    Route object
    AS42689 Glide Student & Residential Limited
    NTTCOM route object for AS42689 Glide Student & Residential Limited, maintainer MAINT-NTTCOM-BB
  16. Oct 19, 2026
    Route object
    AS398465 Rackdog, LLC
    NTTCOM route object for AS398465 Rackdog, LLC, maintainer MAINT-NTTCOM-BB
  17. Nov 6, 2026– today
    Announced
    AS20115 Charter Communications LLC
    Internet provider

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesProxy exitsHolderRPKI
207.137.0.0/16
since Aug 2016
AS2914Internet provider5120.78%ISP proxy, Datacenter proxy164NTT 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
207.137.0.0/1665,536NTTA-207-137NTT America, Inc. (NTTAM-1) · USDirect AllocationMay 15, 1996abuse@ntt.net
└ 207.137.88.0/212,048RCN-207-137-88RCN (C11732738) · USReassignedOct 8, 2026abuse@ntt.net
via NTTA-207-137

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
207.137.0.0/16
Registration type
Direct Allocation
Record created
May 15, 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