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ASN Lookup Tool
AS3257 GTT-BACKBONE

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3257
Organisation
GTT Communications Inc.
Name
GTT-BACKBONE
Total IPv4 Addresses
5,900,578
Total IPv4 Prefixes
3,516
Total IPv6 Prefixes
558
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#86 out of 79,044
Registry
Ripe
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
2002-09-20
Registration Last Change
2025-10-08
Receiving From
ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS7018
US flagAT&T Enterprises, LLC
AS7922
US flagComcast Cable Communications, LLC
AS17676
JP flagSoftBank Mobile Corp. Tokyo Port City Takeshiba ..
AS3320
DE flagDeutsche Telekom AG
Showing 5 of 114
Transit To
ASN
Organisation
AS54740
US flagDynaweb Foundation
AS64629
WORLD flagPrivate Use AS
AS4200000007
WORLD flagPrivate Use AS
AS4200200009
WORLD flagPrivate Use AS
AS4220000048
WORLD flagPrivate Use AS
Showing 5 of 2397
IPv4 Active Prefixes
PrefixRange FromRange To
2.56.236.0/222.56.236.02.56.239.255
2.58.75.0/242.58.75.02.58.75.255
5.83.96.0/215.83.96.05.83.103.255
5.178.16.0/215.178.16.05.178.23.255
5.180.4.0/225.180.4.05.180.7.255
Showing 5 of 3,516
IPv6 Active Prefixes
PrefixRange FromRange To
2001:590::/482001:590::2001:590:0:ffff:ffff:ffff:ffff:ffff
2001:590:1::/542001:590:1::2001:590:1:3ff:ffff:ffff:ffff:ffff
2001:590:1:400::/552001:590:1:400::2001:590:1:5ff:ffff:ffff:ffff:ffff
2001:590:1:600::/642001:590:1:600::2001:590:1:600:ffff:ffff:ffff:ffff
2001:590:1:602::/632001:590:1:602::2001:590:1:603:ffff:ffff:ffff:ffff
Showing 5 of 558