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Data as of Nov 3, 2026

63.128.0.0/18

No anonymizer space · no proxy exits in 30 days

CenturyLink Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS3561
Type
Internet provider
71% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
63.128.0.0/16
since May 2026
AS3561Internet providerCenturyLink Communications, LLC
Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
63.128.0.0/22
since May 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.1.0/24
since Aug 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.7.0/24
since May 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.8.0/22
since May 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.12.0/24
since May 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.14.0/24
since May 2023
AS203Internet providerCenturyLink Communications, LLC
63.128.20.0/24
since May 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.21.0/24
since Jul 2017
AS30031BusinessCenturyLink Communications, LLC
63.128.24.0/24
since May 2023
AS203UnknownCenturyLink Communications, LLC
via Blackbaud, Inc.
63.128.34.0/23
since Aug 2016
AS46263BusinessCenturyLink Communications, LLC

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
63.128.0.0/15131,072CENTURYLINK-LEGACY-SAVVIS-BLK236CenturyLink Communications, LLC (CCL-534) · USDirect AllocationNov 30, 1999[email protected]
└ 63.128.0.0/221,024SAVV-S259964-14Blackbaud, Inc. (BLACKB-4) · USReallocatedOct 19, 2010[email protected]
└ 63.128.4.0/24256SAVV-S233195-8unknown———
└ 63.128.5.0/24256SAVV-S601076-7unknown———
└ 63.128.6.0/2816SAVV-S233479-5unknown———
└ 63.128.6.32/2816SAVV-S233488-13unknown———
└ 63.128.6.48/2816SAVV-S233479-5unknown———
└ 63.128.6.64/2664SAVV-S233479-5unknown———
└ 63.128.6.136/298SAVV-S606312-0unknown———
└ 63.128.6.144/298SAVV-S604078-8unknown———
└ 63.128.6.152/298SAVV-S604078-9unknown———
└ 63.128.6.160/2732SAVV-S604078unknown———
└ 63.128.6.192/2732SAVV-S259054-0unknown———
└ 63.128.6.224/2732SAVV-S604078-0unknown———
└ 63.128.7.0/24256SAVV-S259964-16Blackbaud, Inc. (BLACK-146) · USReallocatedMay 3, 2011—
└ 63.128.8.0/221,024SAVV-S259964-15Blackbaud, Inc. (BLACK-145) · USReallocatedMay 3, 2011[email protected]
└ 63.128.12.0/24256SAVV-S259964-17Blackbaud, Inc. (BLACK-147) · USReallocatedMay 3, 2011—
└ 63.128.13.96/2732SAVV-S612216-0unknown———
└ 63.128.13.128/2664SAVV-S615758-0unknown———
└ 63.128.13.192/2664SAVV-S604078-3unknown———
└ 63.128.16.0/304SAVV-S612010-0unknown———
└ 63.128.16.4/304SAVV-S612010-0unknown———
└ 63.128.16.48/298SAVV-S606312-0unknown———
└ 63.128.16.56/298SAVV-S612009-1unknown———
└ 63.128.16.64/298SAVV-S612009-2unknown———
└ 63.128.16.72/298SAVV-S618005-0unknown———
└ 63.128.17.0/24256SAVV-S601076-8unknown———
└ 63.128.18.0/24256SAVV-S612269-0unknown———
└ 63.128.19.0/2732SAVV-S259964-22unknown———
└ 63.128.19.32/2732SAVV-S616630-0unknown———
└ 63.128.19.64/2664SAVV-S606312-0unknown———
└ 63.128.19.128/2664SAVV-S618005-0unknown———
└ 63.128.19.192/2732SAVV-S618005-0unknown———
└ 63.128.19.224/2732SAVV-S233978-0unknown———
└ 63.128.20.0/24256SAVV-S259964-23Blackbaud, Inc. (BLACK-154) · USReallocatedApr 1, 2013—
└ 63.128.22.0/24256SAVV-S601076-9unknown———
└ 63.128.24.0/221,024SAVV-S259964-24Blackbaud, Inc. (BLACK-159) · USReallocatedAug 12, 2013[email protected]
└ 63.128.32.64/2664SAVV-S252127-0unknown———
└ 63.128.32.128/2816SAVV-S252127-0unknown———
└ 63.128.32.192/2664SAVV-S252127-13unknown———
└ 63.128.33.0/24256SAVV-S618005-0unknown———
└ 63.128.34.0/23512SAVV-S265152-1Zeta Interactive (ZI-80) · USReassignedJul 6, 2016—

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

16,384 addresses
TypeAddressesShareRanges
Internet provider11,71271%13
Unknown3,07219%8
Business1,0886.6%29
Hosting5123.1%1

Network & registry

AnnouncementRouting historyWhois & abuse
Origin network

AS3561

US
Name
CenturyLink Communications, LLC
Type
Internet provider
Registered
Oct 7, 1998
Domain
lumen.com
Website
www.lumen.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed