Home Prefix Lookup64.105.0.0/16

64.105.0.0/16 - GTT BACKBONE GTT Communications (AS3257)

IPv4ARINallocatedAS3257GTT-BACKBONE GTT Communications Inc.No ROA

CIDR

64.105.0.0/16

IP Version

IPv4

Addresses

65.5K

Mask

/16 (255.255.0.0)

Country

🇺🇸 United States

City

Chicago

RIR

ARIN

Status

allocated

Allocated

2000-06-07

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
64.105.0.0/16	AS3257 GTT-BACKBONE GTT Communications Inc.	No ROA	Other IRR	2026-10-11

More-Specific Announcements

125 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
64.105.0.0/22	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.4.0/22	AS40676 AS40676 - Psychz Networks	Valid	-	2026-10-11
64.105.8.0/22	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.12.0/22	AS40676 AS40676 - Psychz Networks	Valid	-	2026-10-11
64.105.16.0/22	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.20.0/23	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.22.0/24	AS6079 RCN-AS - RCN	Valid	-	2026-10-11
64.105.23.0/24	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.24.0/21	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.32.0/21	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.40.0/23	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.42.0/24	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.43.0/24	AS10753 LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC	Valid	-	2026-10-11
64.105.43.0/24	AS215152 ORG-CUL21-RIPE CATERING UK LIMITED	Invalid	-	2026-10-11
64.105.44.0/22	AS20115 CHARTER-20115 - Charter Communications LLC	Valid	-	2026-10-11
64.105.48.0/23	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.50.0/24	AS3257 GTT-BACKBONE GTT Communications Inc.	No ROA	-	2026-10-11
64.105.52.0/23	AS3257 GTT-BACKBONE GTT Communications Inc.	No ROA	-	2026-10-11
64.105.54.0/23	AS3257 GTT-BACKBONE GTT Communications Inc.	No ROA	-	2026-10-11
64.105.56.0/21	AS3257 GTT-BACKBONE GTT Communications Inc.	Valid	-	2026-10-11
64.105.64.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.65.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.66.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.67.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.68.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.69.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.70.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.71.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.72.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.72.0/24	AS39600 BUNNY-TECHNOLOGY-LLC - BUNNY TECHNOLOGY LLC	Valid	-	2026-10-11
64.105.74.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.76.0/24	AS11404 AS-WAVE-1 - Wave Broadband	Valid	-	2026-10-11
64.105.77.0/24	AS11404 AS-WAVE-1 - Wave Broadband	Valid	-	2026-10-11
64.105.78.0/24	AS11404 AS-WAVE-1 - Wave Broadband	Valid	-	2026-10-11
64.105.79.0/24	AS11404 AS-WAVE-1 - Wave Broadband	Valid	-	2026-10-11
64.105.80.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.82.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.84.0/23	AS55470 CYFUTURE-AS-IN Cyfuture India Pvt. Ltd.	Valid	-	2026-10-11
64.105.86.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.88.0/23	AS212238 CDNEXT Datacamp Limited	Valid	-	2026-10-11
64.105.90.0/23	AS55470 CYFUTURE-AS-IN Cyfuture India Pvt. Ltd.	Valid	-	2026-10-11
64.105.92.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.94.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.98.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.109.0/24	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.110.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.112.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.113.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.114.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.115.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.116.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.117.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.118.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.119.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.125.0/24	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.126.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.128.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.133.0/24	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.134.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.136.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.137.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.138.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.139.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.140.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.141.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.142.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.143.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.144.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.145.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.146.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.147.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.148.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.149.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.150.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.151.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.153.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.154.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.157.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.158.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.160.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.162.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.164.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.168.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.173.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.174.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.176.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.178.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.180.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.184.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.188.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.190.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.192.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.196.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.198.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.200.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.203.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.205.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11
64.105.206.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.208.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.210.0/23	AS30058 FDCSERVERS - FDCservers.net	Valid	-	2026-10-11
64.105.212.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.214.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.216.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.218.0/23	AS10753 LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC	Valid	-	2026-10-11
64.105.220.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.222.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.224.0/23	AS9009 M247 M247 Europe SRL	Valid	-	2026-10-11
64.105.226.0/23	AS9009 M247 M247 Europe SRL	Valid	-	2026-10-11
64.105.228.0/23	AS55470 CYFUTURE-AS-IN Cyfuture India Pvt. Ltd.	Valid	-	2026-10-11
64.105.230.0/23	AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	Valid	-	2026-10-11
64.105.232.0/23	AS9009 M247 M247 Europe SRL	Valid	-	2026-10-11
64.105.234.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.236.0/23	AS3320 DTAG Deutsche Telekom AG	Valid	-	2026-10-11
64.105.238.0/23	AS9009 M247 M247 Europe SRL	Valid	-	2026-10-11
64.105.240.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.241.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.242.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.243.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.244.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.245.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.246.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.247.0/24	AS7459 GRANDECOM-AS1 - Grande Communications Networks, LLC	Valid	-	2026-10-11
64.105.248.0/22	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.252.0/23	AS20001 TWC-20001-PACWEST - Charter Communications Inc	Valid	-	2026-10-11
64.105.254.0/24	AS5065 BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications	Valid	-	2026-10-11

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS3257	Other IRR	MAINT-AS3257	2025-04-11

Transfer History

Registry transfers of 64.105.0.0/16, blocks inside it, or blocks containing it.

64.105.0.0/16M&A · 2025-05-07
GTT
🇺🇸 US ARIN
→
GTT Americas, LLC
🇺🇸 US ARIN
64.105.0.0/16M&A · 2023-11-21
MegaPath Corporation
🇺🇸 US ARIN
→
GTT
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-05-07	64.105.0.0/16	GTT 🇺🇸 US ARIN	GTT Americas, LLC 🇺🇸 US ARIN	M&A
2023-11-21	64.105.0.0/16	MegaPath Corporation 🇺🇸 US ARIN	GTT 🇺🇸 US ARIN	M&A

Origin ASN

AS3257

GTT-BACKBONE GTT Communications Inc.

Related Prefixes

More prefixes of AS3257

All prefixes of AS3257 →

Geolocation

Country🇺🇸United StatesUS

CityChicago

Abuse Contact

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the ARIN regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/64.105.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/64.105.0.0/16" | jq

External Links

RIPEstat