AS number details

AS21309

Acantho S.p.a  ·  acantho.it

  • bittorrent

AS21309 – Acantho S.p.a

Field Value
Country Italy
Website acantho.it
Hosted domains 3,235
Number of IPv4 61,440
Number of IPv6 79,228,162,514,264,337,593,543,950,336
ASN type Hosting
Registry ripe
Allocated 22 years ago on Jul 19, 2002
Updated 3 months ago on Nov 08, 2023
Netblock Company Num of IPs
185.123.8.0/22 Acantho S.p.a 1,024
185.123.8.0/24 Acantho S.p.a 256
185.123.9.0/24 Acantho S.p.a 256
185.239.96.0/22 AD Consulting S.P.A. 1,024
213.174.160.0/19 Acantho S.p.a 8,192
213.174.160.0/20 Acantho S.p.a 4,096
213.174.160.0/21 Acantho S.p.a 2,048
213.174.168.0/21 Acantho S.p.a 2,048
213.174.176.0/20 Acantho S.p.a 4,096
213.174.176.0/21 Acantho, Via Molino Rosso,8 40026 Imola (BO) 2,048
213.174.184.0/21 Acantho S.p.a 2,048
213.209.192.0/18 Acantho S.p.a 16,384
213.209.192.0/19 Acantho S.p.a 8,192
213.209.192.0/20 Acantho S.p.a 4,096
213.209.208.0/20 Acantho S.p.a 4,096
213.209.224.0/19 Acantho S.p.a 8,192
213.209.224.0/20 Acantho, Via Molino Rosso,8 40026 Imola (BO) 4,096
213.209.240.0/20 Point-to-Point L3VPN Acantho 4,096
5.63.136.0/21 Acantho SpA, Via Molino Rosso,8 - 40026 Imola (BO) 2,048
77.89.0.0/18 Acantho S.p.a 16,384
77.89.0.0/19 Acantho S.p.a 8,192
77.89.0.0/20 Acantho S.p.a 4,096
77.89.16.0/20 Acantho S.p.a 4,096
77.89.32.0/19 Acantho S.p.a 8,192
77.89.32.0/20 Acantho S.p.a 4,096
77.89.48.0/20 Hyperlan Home customers 4,096
83.216.160.0/19 Acantho S.p.a 8,192
83.216.160.0/20 Acantho S.p.a 4,096
83.216.160.0/21 Comune di Modena 2,048
83.216.168.0/21 Acantho S.p.a 2,048
83.216.176.0/20 Acantho S.p.a 4,096
83.216.176.0/21 SATCOM SPA 2,048
83.216.184.0/21 SATCOM SPA 2,048
86.110.128.0/19 Acantho S.p.a 8,192
86.110.128.0/20 Acantho S.p.a 4,096
86.110.128.0/21 Acantho S.p.a 2,048
86.110.136.0/21 SATCOM-UNIKA-NET 2,048
86.110.144.0/20 HYPERLAN Northern Italy 4,096
86.110.144.0/21 HYPERLAN Northern Italy 2,048
86.110.152.0/21 HYPERLAN Northern Italy 2,048
Netblock Company
2a03:c380::/32 Acantho S.p.a
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IP Ranges API

WHOIS Details

aut-num:        AS21309
org:            ORG-AS22-RIPE
as-name:        CASAWEB-AS
descr:          Via Molino Rosso 8 IMOLA (BO) ITALY
remarks:        ---------------
remarks:        Upstreamers
remarks:        ---------------
import:         from AS3257 action pref=100; accept ANY
import:         from AS28716 action pref=100; accept ANY
import:         from AS174 action pref=100; accept ANY
import:         from AS3269 action pref=100; accept ANY
remarks:        ---------------
remarks:        Private Peers
remarks:        ---------------
import:         from AS31638 action pref=100; accept AS31638
remarks:        --------------
remarks:        Public Peers
remarks:        --------------
import:         from AS1267 action pref=100; accept AS-INFOSTRADA
import:         from AS3313 action pref=100; accept AS-INET
import:         from AS5392 action pref=100; accept AS-TELNET
import:         from AS5396 action pref=100; accept AS-MC-link
import:         from AS6730 action pref=100; accept AS-SUNRISE
import:         from AS6734 action pref=100; accept AS-SPIN
import:         from AS8224 action pref=100; accept AS-INTERCOM
import:         from AS8674 action pref=100; accept AS-NETNOD
import:         from AS8816 action pref=100; accept AS-IT-STCOM
import:         from AS9026 action pref=100; accept AS-ULI
import:         from AS9137 action pref=100; accept AS-UNO
import:         from AS12721 action pref=100; accept AS-LOMBARDIACOM
import:         from AS12779 action pref=100; accept AS-ITGATE
import:         from AS12850 action pref=100; accept AS-ENTER
import:         from AS12874 action pref=100; accept AS-FASTWEB
import:         from AS16004 action pref=100; accept AS-MIXITA
import:         from AS24915 action pref=100; accept AS-TELEUNIT
import:         from AS12637 action pref=100; accept AS-SEEWEB
import:         from AS9102 action pref=100; accept AS-PLEXIA
import:         from AS39912 action pref=100; accept AS-i3B
import:         from AS8234 action pref=100; accept AS-RAI
import:         from AS31034 action pref=100; accept AS-ARUBA
import:         from AS28929 action pref=100; accept AS-ASDASD
import:         from AS31034 action pref=100; accept AS-Aruba
import:         from AS34695 action pref=100; accept AS-E4A
import:         from AS44160 action pref=100; accept AS-Emmequadro
import:         from AS6760 action pref=100; accept AS-ITELSI
import:         from AS16276 action pref=100; accept AS-OVH
import:         from AS25525 action pref=100; accept AS-REASONNET
import:         from AS35574 action pref=100; accept AS-SED_LOTTOMATICA
import:         from AS15720 action pref=100; accept AS-POSTECOM
import:         from AS47217 action pref=100; accept AS-PLANETEL
import:         from AS21056 action pref=100; accept AS-WELCOMEITALIA
import:         from AS48634 action pref=100; accept AS-MEDIASET
import:         from AS47927 action pref=100; accept AS-WIFIWEB
import:         from AS8265 action pref=100; accept AS-FASTNET
import:         from AS16265 action pref=100; accept AS-LEASEWEB
import:         from AS12835 action pref=100; accept AS12835:AS-CUSTOMERS
import:         from AS5602 action pref=100; accept AS-KQIT
import:         from AS15469 action pref=100; accept AS-WARINET
import:         from AS15589 action pref=100; accept AS-EUTELIA
import:         from AS12399 action pref=100; accept AS-SPXS
import:         from AS8922 action pref=100; accept AS8922
import:         from AS2597 action pref=100; accept AS2597
import:         from AS20836 action pref=100; accept AS-CDLAN
import:         from AS44513 action pref=100; accept AS-OPTIMA
import:         from AS5394 action pref=100; accept AS-UNIDATACUST
import:         from AS24880 action pref=100; accept AS24880
import:         from AS30848 action pref=100; accept AS-TWTIT
import:         from AS49367 action pref=100; accept AS49367
import:         from AS15830 action pref=100; accept AS-TELECITYGROUP
import:         from AS47408 action pref=100; accept AS47408
import:         from AS51185 action pref=100; accept AS-MAINSOFT
import:         from AS48291 action pref=100; accept AS48291
import:         from AS9104 action pref=100; accept AS9104:AS-CUSTOMERS
import:         from AS15169 action pref=100; accept AS-GOOGLE
import:         from AS24608 action pref=100; accept AS24608
import:         from AS25152 action pref=100; accept RS-KROOT-MIX
import:         from AS41497 action pref=100; accept AS41497
import:         from AS42909 action pref=100; accept AS42909
import:         from AS20924 action pref=100; accept AS20924
import:         from AS8968 action pref=100; accept AS-ALBACOM
import:         from AS50316 action pref=100; accept AS-NETGLOBAL
import:         from AS197075 action pref=100; accept AS-ACTNET-GLOBAL
import:         from AS20940 action pref=100; accept AS-AKAMAI
remarks:        --------------
remarks:        Customers
remarks:        --------------
import:         from AS15923 action pref=100; accept AS-LOGOS
import:         from AS42933 action pref=100; accept AS-AEROPORTO-MARCONI-BO-IT
import:         from AS49535 action pref=100; accept AS-EMIND
import:         from AS197807 action pref=100; accept AS-EOS
import:         from AS8884 action pref=100; accept AS8884
import:         from AS29177 action pref=100; accept AS-ASCOTLC
remarks:        ---------------
remarks:        Upstreamers
remarks:        ---------------
export:         to AS3257 announce AS-ACANTHO
export:         to AS28716 announce AS-ACANTHO
export:         to AS174 announce AS-ACANTHO
export:         to AS3269 announce AS-ACANTHO
remarks:        ---------------
remarks:        Private Peers
remarks:        ---------------
export:         to AS31638 announce AS21309
remarks:        --------------
remarks:        Public Peers
remarks:        --------------
export:         to AS1267 announce AS-ACANTHO
export:         to AS3313 announce AS-ACANTHO
export:         to AS5392 announce AS-ACANTHO
export:         to AS5396 announce AS-ACANTHO
export:         to AS6730 announce AS-ACANTHO
export:         to AS6734 announce AS-ACANTHO
export:         to AS8224 announce AS-ACANTHO
export:         to AS8674 announce AS-ACANTHO
export:         to AS8816 announce AS-ACANTHO
export:         to AS9026 announce AS-ACANTHO
export:         to AS9137 announce AS-ACANTHO
export:         to AS12721 announce AS-ACANTHO
export:         to AS12779 announce AS-ACANTHO
export:         to AS12850 announce AS-ACANTHO
export:         to AS12874 announce AS-ACANTHO
export:         to AS16004 announce AS-ACANTHO
export:         to AS24915 announce AS-ACANTHO
export:         to AS12637 announce AS-ACANTHO
export:         to AS9102 announce AS-ACANTHO
export:         to AS39912 announce AS-ACANTHO
export:         to AS8234 announce AS-ACANTHO
export:         to AS31034 announce AS-ACANTHO
export:         to AS28929 announce AS-ACANTHO
export:         to AS31034 announce AS-ACANTHO
export:         to AS34695 announce AS-ACANTHO
export:         to AS44160 announce AS-ACANTHO
export:         to AS6760 announce AS-ACANTHO
export:         to AS16276 announce AS-ACANTHO
export:         to AS25525 announce AS-ACANTHO
export:         to AS35574 announce AS-ACANTHO
export:         to AS15720 announce AS-ACANTHO
export:         to AS47217 announce AS-ACANTHO
export:         to AS21056 announce AS-ACANTHO
export:         to AS48634 announce AS-ACANTHO
export:         to AS47927 announce AS-ACANTHO
export:         to AS8265 announce AS-ACANTHO
export:         to AS16265 announce AS-ACANTHO
export:         to AS12835 announce AS-ACANTHO
export:         to AS5602 announce AS-ACANTHO
export:         to AS15469 announce AS-ACANTHO
export:         to AS15589 announce AS-ACANTHO
export:         to AS12399 announce AS-ACANTHO
export:         to AS8922 announce AS-ACANTHO
export:         to AS2597 announce AS-ACANTHO
export:         to AS20836 announce AS-ACANTHO
export:         to AS44513 announce AS-ACANTHO
export:         to AS5394 announce AS-ACANTHO
export:         to AS24880 announce AS-ACANTHO
export:         to AS30848 announce AS-ACANTHO
export:         to AS49367 announce AS-ACANTHO
export:         to AS15830 announce AS-ACANTHO
export:         to AS47408 announce AS-ACANTHO
export:         to AS51185 announce AS-ACANTHO
export:         to AS48291 announce AS-ACANTHO
export:         to AS9104 announce AS-ACANTHO
export:         to AS15169 announce AS-ACANTHO
export:         to AS24608 announce AS-ACANTHO
export:         to AS25152 announce AS-ACANTHO
export:         to AS41497 announce AS-ACANTHO
export:         to AS42909 announce AS-ACANTHO
export:         to AS20924 announce AS-ACANTHO
export:         to AS8968 announce AS-ACANTHO
export:         to AS50316 announce AS-ACANTHO
export:         to AS197075 announce AS-ACANTHO
export:         to AS20940 announce AS-ACANTHO
remarks:        --------------
remarks:        Customers
remarks:        --------------
export:         to AS15923 announce ANY
export:         to AS42933 announce ANY
export:         to AS49535 announce ANY
export:         to AS197807 announce ANY
export:         to AS8884 announce ANY
export:         to AS29177 announce ANY
remarks:        --------------
admin-c:        EG177-RIPE
tech-c:         LB6629-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
tech-c:         CB13290-RIPE
tech-c:         HA277-RIPE
mnt-by:         CASAWEB-MNT
notify:         lir@acantho.com
created:        2002-07-19T07:58:04Z
last-modified:  2023-11-08T15:41:22Z
source:         RIPE
abuse-email:    abuse@acantho.net
abuse-c:        AA25964-RIPE
abuse-org:      ORG-AS22-RIPE

organisation:   ORG-AS22-RIPE
org-name:       Acantho S.p.a
country:        IT
org-type:       LIR
address:        Via Molino Rosso 8
address:        40026
address:        IMOLA (BO)
address:        ITALY
phone:          +39 0542 843300
fax-no:         +39 0542 843349
e-mail:         lir@acantho.com
admin-c:        FM2506-RIPE
admin-c:        MB36053-RIPE
admin-c:        DA1292-RIPE
admin-c:        HA277-RIPE
admin-c:        EG5923-RIPE
admin-c:        AF487-RIPE
admin-c:        EG177-RIPE
admin-c:        MM3845-RIPE
admin-c:        EM1782-RIPE
abuse-c:        AA25964-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CASAWEB-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CASAWEB-MNT
created:        2004-04-17T11:29:58Z
last-modified:  2021-02-11T17:41:29Z
source:         RIPE

person:         Erica Montefiori
address:        Acantho Spa
address:        Via Molino Rosso 8
address:        I-40026 IMOLA (BO)
address:        Italy
phone:          +39 0542 843250
fax-no:         +39 0542 843349
e-mail:         erica.montefiori@acantho.com
nic-hdl:        EM1782-RIPE
created:        2004-07-12T09:02:47Z
last-modified:  2015-07-02T08:54:05Z
source:         RIPE
mnt-by:         CASAWEB-MNT

person:         Antonio Cardone
address:        Acantho Spa
address:        Via Molino Rosso 8
address:        I-40026 IMOLA (BO)
address:        Italy
phone:          +39 0542 369300
fax-no:         +39 0542 369349
e-mail:         abuse@acantho.com
nic-hdl:        EG177-RIPE
mnt-by:         CASAWEB-MNT
created:        2002-01-30T12:02:07Z
last-modified:  2022-03-15T10:17:54Z
source:         RIPE

person:         Davide Amaducci
address:        Acantho Spa
address:        Via Molino Rosso 8
address:        I-40026 IMOLA (BO)
address:        Italy
phone:          +39 0542 843332
fax-no:         +39 0542 843349
e-mail:         davide.amaducci@acantho.com
nic-hdl:        DA1292-RIPE
created:        2004-07-12T08:59:34Z
last-modified:  2015-07-02T08:53:41Z
source:         RIPE
mnt-by:         CASAWEB-MNT

person:         Marangoni Marco
address:        Acantho Spa
address:        Viale Carlo Berti Pichat, 2/4
address:        I-40100 Bologna
address:        Italy
phone:          +39 051287167
fax-no:         +39 051287399
nic-hdl:        MM3845-RIPE
created:        2002-11-13T14:34:55Z
last-modified:  2015-07-02T08:55:52Z
source:         RIPE
mnt-by:         CASAWEB-MNT

role:           Acantho Abuse
address:        Via Molino Rosso 8
address:        40026 Imola (BO)
e-mail:         abuse@acantho.net
nic-hdl:        AA25964-RIPE
mnt-by:         CASAWEB-MNT
created:        2013-06-04T07:12:33Z
last-modified:  2013-06-04T07:13:59Z
source:         RIPE
abuse-mailbox:  abuse@acantho.net

person:         Alessandro Fava
address:        Acantho Spa
address:        Via Molino Rosso 8
address:        I-40026 IMOLA (BO)
address:        Italy
phone:          +39 0542 843300
fax-no:         +39 0542 843349
e-mail:         alessandro.fava@acantho.com
nic-hdl:        AF487-RIPE
created:        2002-01-11T16:33:00Z
last-modified:  2015-07-02T08:53:08Z
source:         RIPE
mnt-by:         CASAWEB-MNT

person:         MICHELA BIAGI
address:        Via Molino rosso, 8 - 40026 Imola BO
phone:          +39 0542 369530
nic-hdl:        MB36053-RIPE
mnt-by:         CASAWEB-MNT
created:        2014-01-28T14:26:40Z
last-modified:  2014-01-28T14:26:40Z
source:         RIPE

person:          Hostmaster Acantho
address:         Acantho Spa (ex Casaweb)
address:         Via Molino Rosso 8
address:         I-40026 IMOLA (BO)
address:         Italy
phone:           +39 0542 843300
fax-no:          +39 0542 843349
notify:          lir@acantho.com
e-mail:          lir@acantho.com
mnt-by:          CASAWEB-MNT
nic-hdl:         HA277-RIPE
created:         2002-06-07T07:01:24Z
last-modified:   2003-11-04T08:06:45Z
source:          RIPE

person:         Fabio Moglia
address:        Acantho Spa
address:        Via Molino Rosso 8
address:        I-40026 IMOLA (BO)
address:        Italy
phone:          +39 0542 843253
fax-no:         +39 0542 843349
e-mail:         fabio.moglia@acantho.com
nic-hdl:        FM2506-RIPE
created:        2004-07-12T09:02:17Z
last-modified:  2015-07-02T08:54:27Z
source:         RIPE
mnt-by:         CASAWEB-MNT

person:         Enrico Ghetti
address:        via Molino Rosso,8 - 40026 Imola (BO)
phone:          +39 0542369302
e-mail:         enrico.ghetti@acantho.com
nic-hdl:        EG5923-RIPE
mnt-by:         CASAWEB-MNT
created:        2014-01-28T14:27:07Z
last-modified:  2019-07-18T13:00:21Z
source:         RIPE

role:           Acantho Abuse
address:        Via Molino Rosso 8
address:        40026 Imola (BO)
e-mail:         abuse@acantho.net
nic-hdl:        AA25964-RIPE
mnt-by:         CASAWEB-MNT
created:        2013-06-04T07:12:33Z
last-modified:  2013-06-04T07:13:59Z
source:         RIPE
abuse-mailbox:  abuse@acantho.net

person:         Antonio Cardone
address:        Acantho Spa
address:        Via Molino Rosso 8
address:        I-40026 IMOLA (BO)
address:        Italy
phone:          +39 0542 369300
fax-no:         +39 0542 369349
e-mail:         abuse@acantho.com
nic-hdl:        EG177-RIPE
mnt-by:         CASAWEB-MNT
created:        2002-01-30T12:02:07Z
last-modified:  2022-03-15T10:17:54Z
source:         RIPE
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Hosted Domains

There are 3,235 domain names hosted across 348 IP addresses on this ASN.

IP Address Domain Domains on this IP
213.209.214.99 consulentia.it 243
213.209.214.154 centrocommercialeravaldino.it 213
213.209.214.11 simas.it 144
213.209.215.157 parchi.fc.it 135
213.209.238.254 officinebonora.it 98
77.89.7.21 faenzascacchi.it 83
213.174.182.70 avvocatocasadio.it 81
77.89.51.37 nilo-beauty.hk 76
77.89.51.34 h2xwatch.com 76
83.216.185.92 bvmetalmeccanica.it 68
213.209.238.234 elvstromsails.it 67
77.89.18.155 ecf.sm 58
213.209.238.244 electronicmarketweb.com 56
213.174.170.94 privateequity.it 53
83.216.185.82 mancinavini.it 52
213.209.215.154 parcocollieuganei.com 50
213.174.170.71 netgate.it 48
213.209.238.253 impresaedileloccivalentino.it 48
213.209.215.60 metalfiamm.it 46
213.209.202.124 nikosolutions.it 45
77.89.18.60 prink.es 44
213.209.215.22 ascorchimici.it 44
77.89.4.176 studiocasaserena.it 44
213.209.202.125 studio-baldazzi.it 43
213.209.214.103 myprintingup.com 39
213.209.238.232 studioluve.it 39
213.209.238.252 giodalnegro.com 36
77.89.19.23 lppackaging-iberica.com 35
83.216.185.69 mebmeccanica.it 34
77.89.18.149 cdobrianza.org 34
213.209.238.231 emiliabarilli.com 34
77.89.2.30 pasticceriababini.net 33
77.89.18.150 nochedetangosanmarino.com 33
213.209.238.235 lamorona.com 32
77.89.18.153 drcnetwork.it 29
213.174.182.85 riccardomuti.net 24
213.174.170.78 marina24ore.it 22
213.209.238.83 astrea-digital-platform.com 22
83.216.185.25 seci-energia.it 22
77.89.4.170 tecsoglobal.it 22
83.216.177.94 pedelmont.it 21
185.239.96.71 revitasalute.it 20
77.89.4.175 carroattrezzi-shop.it 19
77.89.51.5 diniargeo24.pl 19
213.174.182.1 autodromoimola.it 19
77.89.39.221 coraitaly.com 18
77.89.55.85 egafedizioni.net 17
77.89.19.241 sys-it.it 17
83.216.185.78 4tshop.it 16
83.216.185.94 minicarsnc.it 16

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Useful for Cybersecurity

Peers

There are 50 peers for this ASN.

Peers Name
AS12637 SEEWEB s.r.l.
AS12779 IT.Gate S.p.A.
AS13030 Init7 (Switzerland) Ltd.
AS13237 euNetworks GmbH
AS14537 Continent 8 LLC
AS14840 BR.Digital Provider
AS15412 FLAG TELECOM UK LIMITED
AS15605 Connesi s.p.a.
AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
AS15923 Logos S.P.A.
AS174 Cogent Communications
AS197807 Eos sistemi s.r.l.
AS199181 Orakom S.r.l.
AS199524 G-Core Labs S.A.
AS202032 GOLINE SA
AS20811 Brennercom S.p.A.
AS20912 Giuliano Claudio Peritore trading as "Panservice s.a.s. di Cuseo Fabrizio & C."
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482 SG.GS
AS24961 myLoc managed IT AG
AS25160 Vorboss Limited
AS28716 Retelit Digital Services S.p.A.
AS29049 Delta Telecom Ltd
AS29177 Acantho S.p.a
AS3269 Telecom Italia S.p.A.
AS33891 Core-Backbone GmbH
AS34224 Neterra Ltd.
AS39120 Convergenze S.p.A.
AS41047 Bart Vrancken trading as MLaB
AS42933 Aeroporto G. Marconi di Bologna s.p.a.
AS4455 IX Reach Ltd
AS49535 E-Mind Srl
AS49544 i3D.net B.V
AS49605 Digital Telecommunication Services S.r.l.
AS49709 Videobyte S.r.l.
AS50877 Airbeam S.r.l.
AS51185 Onecom Global Communications LTD
AS5392 TELNET S.r.l.
AS57111 ALTITUD RETI SRL
AS57304 JSC "RetnNet"
AS57463 NetIX Communications JSC
AS59919 Brainbox S.r.l.
AS6939 Hurricane Electric LLC
AS7713 PT Telekomunikasi Indonesia
AS8220 COLT Technology Services Group Limited
AS8660 Italiaonline S.p.A.
AS8772 NetAssist LLC
AS8884 CRIF S.p.A.
AS9002 RETN Limited
AS9498 BHARTI Airtel Ltd.
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications
AS28716 Retelit Digital Services S.p.A.
AS3269 Telecom Italia S.p.A.
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Downstreams

There are 5 downstreams for this ASN.

Downstreams Name
AS197807 Eos sistemi s.r.l.
AS29177 Acantho S.p.a
AS42933 Aeroporto G. Marconi di Bologna s.p.a.
AS49535 E-Mind Srl
AS8884 CRIF S.p.A.
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Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS21309 at robtex.

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