Autonomous System
AS44066 · firstcolo GmbH
Overview
AS44066 is announced on the Internet: RIPE RIS route collectors currently see 53 IPv4 prefixes and 16 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 162,304 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 73 upstream neighbours (transit providers or peers) and 100 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Cogent Communications, LLC (AS174), and NTT America, Inc. (AS2914). AS44066 was assigned by RIPE NCC, and its registration country is Germany.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:58 PM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 84.200.0.1, the first address of 84.200.0.0/16. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.
Announced prefixes
IPv4 prefixes (53 prefixes)
| Prefix | Addresses |
|---|---|
| 5.132.158.0/24 | 256 |
| 5.154.181.0/24 | 256 |
| 31.172.80.0/20 | 4,096 |
| 31.172.85.0/24 | 256 |
| 37.114.96.0/19 | 8,192 |
| 62.223.44.0/22 | 1,024 |
| 79.133.32.0/19 | 8,192 |
| 80.173.138.0/23 | 512 |
| 82.211.0.0/18 | 16,384 |
| 84.200.0.0/16 | 65,536 |
| 84.200.39.0/24 | 256 |
| 84.200.76.0/24 | 256 |
| 84.200.145.0/24 | 256 |
| 84.201.0.0/18 | 16,384 |
| 85.137.31.0/24 | 256 |
| 91.222.176.0/22 | 1,024 |
| 94.247.213.0/24 | 256 |
| 95.156.195.0/24 | 256 |
| 109.232.120.0/22 | 1,024 |
| 114.69.227.0/24 | 256 |
| 159.100.0.0/19 | 8,192 |
| 159.100.4.0/24 | 256 |
| 159.100.10.0/23 | 512 |
| 168.80.34.0/24 | 256 |
| 185.15.8.0/22 | 1,024 |
| 185.17.255.0/24 | 256 |
| 185.58.2.0/24 | 256 |
| 185.92.160.0/22 | 1,024 |
| 185.133.33.0/24 | 256 |
| 185.160.0.0/22 | 1,024 |
| 185.171.204.0/22 | 1,024 |
| 185.197.165.0/24 | 256 |
| 185.197.166.0/24 | 256 |
| 185.197.167.0/24 | 256 |
| 188.92.0.0/24 | 256 |
| 193.33.155.0/24 | 256 |
| 193.33.221.0/24 | 256 |
| 193.34.71.0/24 | 256 |
| 193.107.120.0/22 | 1,024 |
| 193.108.168.0/24 | 256 |
| 194.143.134.0/23 | 512 |
| 194.187.164.0/22 | 1,024 |
| 195.190.9.0/24 | 256 |
| 196.16.220.0/24 | 256 |
| 196.17.228.0/24 | 256 |
| 212.23.211.0/24 | 256 |
| 212.79.212.0/22 | 1,024 |
| 212.79.216.0/22 | 1,024 |
| 212.79.220.0/22 | 1,024 |
| 212.224.64.0/18 | 16,384 |
| 212.224.84.0/24 | 256 |
| 212.224.104.0/24 | 256 |
| 212.224.110.0/24 | 256 |
IPv6 prefixes (16 prefixes)
| Prefix |
|---|
| 2001:1608::/32 |
| 2001:1638::/32 |
| 2a01:7e0::/32 |
| 2a01:7e0:2f::/48 |
| 2a01:7e0:1fc::/48 |
| 2a02:fb00::/29 |
| 2a03:aae0:fc::/48 |
| 2a03:aae0:fc00::/48 |
| 2a03:aae0:fc01::/48 |
| 2a03:ebc0:5000::/36 |
| 2a07:b800::/29 |
| 2a09:4d46::/32 |
| 2a0a:7bc0::/32 |
| 2a0a:7bc7::/32 |
| 2a0d:3c0::/40 |
| 2a0e:57c0:400::/38 |
Neighbours
Upstreams (transit or peers) (73)
| AS | Network | Visibility |
|---|---|---|
| AS1299 | Arelion Sweden AB | 827 |
| AS174 | Cogent Communications, LLC | 617 |
| AS2914 | NTT America, Inc. | 571 |
| AS6939 | Hurricane Electric LLC | 566 |
| AS3257 | GTT Communications Inc. | 463 |
| AS51088 | A2B IP B.V. | 191 |
| AS42708 | Glesys AB | 172 |
| AS3320 | Deutsche Telekom AG | 150 |
| AS13030 | Init7 (Switzerland) Ltd. | 68 |
| AS34549 | meerfarbig GmbH & Co. KG | 63 |
| AS25091 | IP-Max SA | 58 |
| AS5405 | Inter.link GmbH | 50 |
| AS4230 | CLARO S.A. | 47 |
| AS34927 | iFog GmbH | 47 |
| AS34019 | Hivane Association | 46 |
| AS29691 | Nine Internet Solutions AG | 42 |
| AS34177 | Celeste SAS | 38 |
| AS35625 | Eurofiber France SAS | 38 |
| AS48362 | Stadtwerke Feldkirch | 38 |
| AS61049 | Exascale Ltd | 38 |
| AS12779 | IT.Gate S.p.A. | 37 |
| AS14840 | BR.Digital Telecom | 37 |
| AS20764 | CJSC RASCOM | 36 |
| AS39351 | 31173 Services AB | 36 |
| AS1103 | - | 35 |
| AS24961 | WIIT AG | 35 |
| AS29632 | Netassist International EOOD | 35 |
| AS8758 | Iway AG | 33 |
| AS41327 | Fiber Telecom S.p.A. | 33 |
| AS8298 | IPng Networks GmbH | 32 |
The 30 most visible of 73.
Downstreams (customers) (100)
| AS | Network | Visibility |
|---|---|---|
| AS44051 | Fornex Hosting S.L. | 379 |
| AS213726 | EFS Euro-Finanz-Service Vermittlungs AG | 367 |
| AS216093 | Root Localhost LLC | 361 |
| AS209169 | croit GmbH | 356 |
| AS31400 | firstcolo GmbH | 353 |
| AS212302 | Codamic AG | 353 |
| AS204119 | ispOne business GmbH | 352 |
| AS208621 | logicforge LogicForge Limited | 351 |
| AS59939 | WIBO Baltic UAB | 349 |
| AS214036 | Ultahost, Inc. | 282 |
| AS50198 | - | 268 |
| AS206880 | - | 266 |
| AS207298 | - | 266 |
| AS215741 | - | 266 |
| AS199476 | - | 242 |
| AS42708 | Glesys AB | 220 |
| AS49532 | Eonix Corporation | 214 |
| AS1921 | - | 78 |
| AS214895 | - | 77 |
| AS214929 | - | 56 |
| AS209216 | - | 30 |
| AS1031 | PEER 1031 LLC | 28 |
| AS205948 | - | 11 |
| AS57463 | NetIX NetIX Communications JSC | 10 |
| AS18403 | FPT Telecom Company | 4 |
| AS6424 | EDGOO NETWORKS UNIPESSOAL LDA | 2 |
| AS8218 | Zayo Infrastructure France SA | 2 |
| AS8881 | 1&1 Versatel GmbH | 2 |
| AS9658 | - | 2 |
| AS25454 | ORANGE MOLDOVA S.A. | 2 |
The 30 most visible of 100.
84 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.
Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.
How to read this page
An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.
A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.
Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.
The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.