Home
/
ASN directory
/
AS44066
AS44066 DE-FIRSTCOLO firstcolo GmbH
DE-FIRSTCOLO firstcolo GmbH · registered in Germany
IPv4 addresses 147,712 140 prefixes · 0.005% of announced IPv4
Rank in Germany #35 largest network in DE by IPv4 space, of 2,315 · 0.13% of DE
Rank worldwide #1,344 of 79,396 networks with IPv4
IPv6 22 x /32 (1,447,171 x /48) 33 prefixes
Country Germany 2,599 ASNs registered there
IPv6 prefixes
All 33 prefixes.
2001:1608::/32 2001:1638::/32 2a01:7e0::/43 2a01:7e0:20::/44 2a01:7e0:30::/44 2a01:7e0:40::/42 2a01:7e0:80::/41 2a01:7e0:100::/41 2a01:7e0:180::/42 2a01:7e0:1c0::/43 2a01:7e0:1e0::/44 2a01:7e0:1f0::/45 2a01:7e0:1f8::/46 2a01:7e0:1fc::/48 2a01:7e0:1fd::/48 2a01:7e0:1fe::/47 2a01:7e0:200::/39 2a01:7e0:400::/38 2a01:7e0:800::/37 2a01:7e0:1000::/36 2a01:7e0:2000::/35 2a01:7e0:4000::/34 2a01:7e0:8000::/33 2a02:fb00::/29 2a03:aae0:fc::/48 2a03:aae0:fc00::/47 2a03:ebc0:5000::/36 2a07:b800::/29 2a09:4d46::/32 2a0a:7bc0::/32 2a0a:7bc7::/32 2a0d:3c0::/40 2a0e:57c0:400::/38
Similar-sized networks in Germany
ASN Name IPv4 addresses
AS12897 #32 ENTEGAMEDIANET ENTEGA Medianet GmbH163,584
AS35244 #33 TC-PEPCOM Tele Columbus AG162,560
AS8569 #34 MSYS METRO Digital GmbH151,552
AS207790 #36 SWNNMS SWN Stadtwerke Neumuenster GmbH146,432
AS15598 #37 IPX-AS15598 NorthC Deutschland GmbH143,616
AS13101 #38 TNG-AS TNG Stadtnetz GmbH142,080
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources