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ASN Lookup Tool
AS44066 DE-FIRSTCOLO

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS44066
Organisation
firstcolo GmbH
Name
DE-FIRSTCOLO
Total IPv4 Addresses
147,455
Total IPv4 Prefixes
152
Total IPv6 Prefixes
38
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,393 out of 79,605
Registry
Ripe
Registered Country
DE flagDE
Registered Country Name
Germany
Registered Date
2007-11-13
Registration Last Change
2025-09-05
Receiving From
ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS56662
PL flagMarcin Gondek
AS1239
US flagCogent Communications, LLC
AS3320
DE flagDeutsche Telekom AG
AS174
US flagCogent Communications, LLC
Showing 5 of 72
Transit To
ASN
Organisation
AS214036
US flagUltahost, Inc.
AS44051
ES flagFornex Hosting S.L.
AS31400
DE flagfirstcolo GmbH
AS59939
LT flagWIBO Baltic UAB
AS205948
DE flagcreoline GmbH
Showing 5 of 20
IPv4 Active Prefixes
PrefixRange FromRange To
5.10.251.0/245.10.251.05.10.251.255
5.132.158.0/245.132.158.05.132.158.255
5.154.181.0/245.154.181.05.154.181.255
5.183.95.0/245.183.95.05.183.95.255
31.172.81.0/2431.172.81.031.172.81.255
Showing 5 of 152
IPv6 Active Prefixes
PrefixRange FromRange To
2001:1608::/322001:1608::2001:1608:ffff:ffff:ffff:ffff:ffff:ffff
2001:1638::/322001:1638::2001:1638:ffff:ffff:ffff:ffff:ffff:ffff
2a01:7e0::/432a01:7e0::2a01:7e0:1f:ffff:ffff:ffff:ffff:ffff
2a01:7e0:20::/452a01:7e0:20::2a01:7e0:27:ffff:ffff:ffff:ffff:ffff
2a01:7e0:28::/462a01:7e0:28::2a01:7e0:2b:ffff:ffff:ffff:ffff:ffff
Showing 5 of 38