AS21056 Cable/DSL/ISP
ASN-WELCOMEITALIA
Vianova S.p.A
IT
43
IPv4 前缀
1
IPv6 前缀
0
对等网络
9
IX 交换点
5
机房设施
AS名称
ASN-WELCOMEITALIA
注册时间
2002-05-02T15:36:10Z
更新时间
2025-12-22T13:39:46Z
IPv4 前缀 (43)
91.143.192.0/20 91.201.104.0/24 94.138.160.0/19 103.26.124.0/22 45.151.12.0/22 91.242.230.0/24 144.48.192.0/22 185.234.164.0/22 103.43.232.0/22 45.84.140.0/22 45.151.64.0/22 45.143.36.0/22 103.248.184.0/22 213.182.64.0/19 185.170.39.0/24 185.224.60.0/22 193.124.240.0/22 103.61.184.0/22 185.125.64.0/22 78.152.96.0/19 +23 个
IPv6 前缀 (1)
2a00:14f8::/32
AS21056 网络拓扑 (上下游关系)
机房设施列表 (5)
名称 城市 国家
Namex Datacenter Rome Rome IT
MIX DC CALDERA Milan IT
Host.it DC1 Turin IT
VSIX Padova IT
Welcome Italia spa - Data Center Pisa IT
同机房网络 (共享数据中心)
ASN 名称 类型 共享机房
AS213338 Evacom Cable/DSL/ISP 3/5
AS209591 Fly Network Cable/DSL/ISP 3/5
AS51580 Time-Net AS51580 Cable/DSL/ISP 3/5
AS50316 4ALL Cable/DSL/ISP 3/5
AS47242 Host.it S.p.A. Content 3/5
AS44092 HAL Service Cable/DSL/ISP 3/5
AS41327 Fiber Telecom (FT) NSP 3/5
AS39479 NS3 NSP 3/5
AS35612 Eolo SpA Cable/DSL/ISP 3/5
AS31638 Lepida NSP 3/5
AS31034 Aruba Content 3/5
AS28716 Retelit Spa NSP 3/5
AS12874 Fastweb Cable/DSL/ISP 3/5
AS9002 RETN NSP 3/5
AS174 Cogent Communications, Inc. NSP 3/5
AS137 GARR Educational/Research 3/5
AS213573 Soluzione Uno Content 2/5
AS213462 FibreConnect-AS NSP 2/5
AS213063 MicroWifi Cable/DSL/ISP 2/5
AS212602 ConnectLife Cable/DSL/ISP 2/5
+10 个同机房网络
原始Whois信息
aut-num:        AS21056
as-name:        ASN-WELCOMEITALIA
org:            ORG-WIS2-RIPE
remarks:        ==============================================================================================================================
remarks:        Peering informations:
remarks:        ==============================================================================================================================
remarks:        Operational issues:ipnoc [at] welcomeitalia [dot] it
remarks:        Spam and abuse issues:ipnoc [at] welcomeitalia [dot] it
remarks:        IPv4 network: Welcome Italia filters out inbound prefixes longer than /24
remarks:        IPv6 network: Welcome Italia filters out inbound prefixes longer than /48
remarks:
remarks:        Peering requests peering [at] welcomeitalia [dot] it
remarks:        Others information http://as21056.peeringdb.com/
remarks:
remarks:        ==============================================================================================================================
remarks:        ==============================================================================================================================
remarks:        IPv4 Transit:
remarks:        ==============================================================================================================================
remarks:
mp-import:      afi ipv4.unicast from AS1299 213.248.92.197 at 213.248.92.198 action community.append(21056:1299); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS1299 announce NOT community.contains(21056:65170); refine { to AS1299 announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS3356 212.133.7.49 at 212.133.7.50 action community.append(21056:3356); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS3356 announce NOT community.contains(21056:65180); refine { to AS3356 announce AS-WELCOMEITALIA; }
remarks:
remarks:
mp-import:      afi ipv4.unicast from AS6762 195.22.208.209 at 195.22.208.210 action community.append(21056:6762); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS6762 announce NOT community.contains(21056:62110); refine { to AS6762 announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS3257 46.33.85.185 at 46.33.85.186 action community.append(21056:3257); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS3257 announce NOT community.contains(21056:62160); refine { to AS3257 announce AS-WELCOMEITALIA; }
mp-default:     to AS3356
remarks:
remarks:        ==============================================================================================================================
remarks:        IPv6 Transit:
remarks:        ==============================================================================================================================
mp-import:      afi ipv6.unicast from AS174 2001:978:2:11::11 at 2001:978:2:11::12 action community.append(21056:174); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv6.unicast to AS174 announce NOT community.contains(21056:65120); refine { to AS174 announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv6.unicast from AS1299 2001:2000:3080:24E::1 at 2001:2000:3080:24E::2 action community.append(21056:1299); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv6.unicast to AS1299 announce NOT community.contains(21056:65170); refine { to AS1299 announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv6.unicast from AS6939 2001:470:15:105::1 at 2001:470:15:105::2 action community.append(21056:6939); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv6.unicast to AS6939 announce AS-WELCOMEITALIA;
remarks:
mp-import:      afi ipv6.unicast from AS3356 2001:1900:5:2:2::415D at 2001:1900:5:2:2::415E action community.append(21056:3356); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv6.unicast to AS3356 announce AS-WELCOMEITALIA;
remarks:
mp-import:      afi ipv6.unicast from AS6762 2001:41A8:20:2::155 at 2001:41A8:20:2::156 action community.append(21056:6762); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv6.unicast to AS6762 announce AS-WELCOMEITALIA;
remarks:
mp-import:      afi ipv6.unicast from AS3257 2001:668:0:3:FFFF:1:0:119 at 2001:668:0:3:FFFF:1:0:11A action community.append(21056:3257); pref=100; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv6.unicast to AS3257 announce AS-WELCOMEITALIA;
mp-default:     to AS3356
remarks:
remarks:        ==============================================================================================================================
remarks:        Italian Exchange Point IPv4:
remarks:        ==============================================================================================================================
remarks:        ==============================================================================================================================
remarks:        IXP Speed and IP address by Town
remarks:        ==============================================================================================================================
remarks:        MIX -- 60 Gbps -- 217.29.66.43 -- Milan (IT)
remarks:        NAMEX -- 50 Gbps -- 193.201.28.41 -- Rome (IT)
remarks:        TIX -- 1 Gbps -- 193.42.140.23 -- Florence (IT)
remarks:        VSIX -- 1 Gbps -- 95.140.128.70 -- Padova (IT)
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-TIX action community.append(21056:65030); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-TIX announce NOT community.contains(21056:65210); refine { to AS21056:PRNG-TIX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-MIX action community.append(21056:65020); pref=80; accept NOT fltr-martian; refine { from AS65004 action community.append(21056:65025); accept ANY; }
mp-export:      afi ipv4.unicast to AS21056:PRNG-MIX announce NOT community.contains(21056:65200); refine { to AS21056:PRNG-MIX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-NAMEX action community.append(21056:65040); pref=80; accept NOT fltr-martian; refine { from AS196959 action community.append(21056:65045); accept ANY; }
mp-export:      afi ipv4.unicast to AS21056:PRNG-NAMEX announce NOT community.contains(21056:65220); refine { to AS21056:PRNG-NAMEX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-VSIX action community.append(21056:65050); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-VSIX announce NOT community.contains(21056:65230); refine { to AS21056:PRNG-VSIX announce AS-WELCOMEITALIA; }
remarks:
remarks:        ==============================================================================================================================
remarks:        European Exchange Point IPv4:
remarks:        ==============================================================================================================================
remarks:        ==============================================================================================================================
remarks:        IXP Speed and IP address by Town
remarks:        ==============================================================================================================================
remarks:        DE-CIX -- 20 Gbps -- 80.81.196.141 -- Frankfurt (DE)
remarks:        DE-CIX -- 10 Gbps -- 185.1.47.117 -- Marseille (FR)
remarks:        AMS-IX -- 10 Gbps -- 80.249.214.79 -- Amsterdam (ND)
remarks:        LINX -- 10 Gbps -- 195.66.231.180 -- London (UK)
remarks:        FRANCE-IX -- 10 Gbps -- 37.49.238.160 -- Paris (FR)
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-DECIX action community.append(21056:65060); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-DECIX announce NOT community.contains(21056:65240); refine { to AS21056:PRNG-DECIX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-AMSIX action community.append(21056:65070); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-AMSIX announce NOT community.contains(21056:65250); refine { to AS21056:PRNG-AMSIX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-LINX action community.append(21056:65080); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-LINX announce NOT community.contains(21056:65260); refine { to AS21056:PRNG-LINX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-FRANCE-IX action community.append(21056:65090); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-FRANCE-IX announce NOT community.contains(21056:65270); refine { to AS21056:PRNG-FRANCE-IX announce AS-WELCOMEITALIA; }
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-DECIX-MARS action community.append(21056:65066); pref=80; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-DECIX-MARS announce NOT community.contains(21056:65067); refine { to AS21056:PRNG-DECIX-MARS announce AS-WELCOMEITALIA; }
remarks:
remarks:        ==============================================================================================================================
remarks:        Private Network Interconnect
remarks:        ==============================================================================================================================
remarks:        Google AS15169 -- 100 Gbps -- Milan (IT)
remarks:
mp-import:      afi ipv4.unicast from AS21056:PRNG-GOOGLE action community.append(21056:65100); pref=600; accept ANY AND NOT fltr-martian;
mp-export:      afi ipv4.unicast to AS21056:PRNG-PRNG-GOOGLE announce NOT community.contains(21056:65280); refine { to AS21056:PRNG-GOOGLE announce AS-WELCOMEITALIA; }
remarks:
remarks:        ==============================================================================================================================
remarks:        Customers IPv4:
remarks:        ==============================================================================================================================
remarks:
mp-import:      afi ipv4.unicast from AS43923 185.1.115.2 at 185.1.115.1 action community.append(21056:65000); pref=50; accept AS43923
mp-import:      afi ipv4.unicast from AS43923 185.1.115.6 at 185.1.115.5 action community.append(21056:65000); pref=50; accept AS43923
mp-export:      afi ipv4.unicast to AS43923 announce ANY
remarks:
mp-import:      afi ipv4.unicast from AS198320 130.255.114.255 at 80.93.131.17 action community.append(21056:65000); pref=50; accept AS198320
mp-export:      afi ipv4.unicast to AS198320 announce ANY
remarks:
mp-import:      afi ipv4.unicast from AS47242 80.93.131.229 at 80.93.131.230 action community.append(21056:65000); pref=50; accept AS47242
mp-import:      afi ipv4.unicast from AS47242 80.93.131.238 at 80.93.131.237 action community.append(21056:65000); pref=50; accept AS47242
mp-export:      afi ipv4.unicast to AS47242 announce ANY
remarks:
mp-import:      afi ipv4.unicast from AS210224 80.93.131.46 at 80.93.131.45 action community.append(21056:65000); pref=50; accept AS210224
mp-export:      afi ipv4.unicast to AS210224 announce ANY
remarks:
mp-import:      afi ipv4.unicast from AS200480 185.1.115.50 at 185.1.115.49 action community.append(21056:65000); pref=50; accept AS200480
mp-export:      afi ipv4.unicast to AS200480 announce ANY
remarks:
mp-import:      afi ipv4.unicast from AS212394 91.143.198.98 at 91.143.198.97 action community.append(21056:65000); pref=50; accept AS212394
mp-export:      afi ipv4.unicast to AS212394 announce ANY
remarks:
remarks:        ==============================================================================================================================
remarks:        Customers IPv6:
remarks:        ==============================================================================================================================
remarks:
remarks:
remarks:        ==============================================================================================================================
remarks:        Communities used to tag inbound routes
remarks:        ==============================================================================================================================
remarks:
remarks:        21056:65000 Routes received from Customers
remarks:        21056:65020 Routes received from peers at MIX IXP
remarks:        21056:65025 Routes received from peers at MIX IXP RS
remarks:        21056:65030 Routes received from peers at TIX IXP
remarks:        21056:65040 Routes received from peers at NAMEX IXP
remarks:        21056:65045 Routes received from peers at NAMEX IXP RS
remarks:        21056:65050 Routes received from peers at VSIX IXP
remarks:        21056:65055 Routes received from peers at VSIX IXP RS
remarks:        21056:65060 Routes received from peers at DECIX IXP
remarks:        21056:65065 Routes received from peers at DECIX IXP RS
remarks:        21056:65070 Routes received from peers at AMSIX IXP
remarks:        21056:65075 Routes received from peers at AMSIX IXP RS
remarks:        21056:65066 Routes received from peers at DECIX-MARSEILLE IXP
remarks:        21056:65067 Routes received from peers at DECIX-MARSEILLE RS
remarks:        21056:65080 Routes received from peers at LINX IXP
remarks:        21056:65085 Routes received from peers at LINX IXP RS
remarks:        21056:65090 Routes received from peers at FRANCE-IX IXP
remarks:        21056:65095 Routes received from peers at FRANCE-IX IXP RS
remarks:        21056:65100 Routes received from Google PNI (AS15169)
remarks:        21056:3356 Routes received from Level3 (AS3356)
remarks:        21056:1299 Routes received from Telia Sonera (AS1299)
remarks:        21056:6939 Routes received from Hurricane Electric (AS6939)
remarks:        21056:12874 Routes received from Fastweb (AS12874)
remarks:        21056:3269 Routes received from Telecom Italia (AS3269)
remarks:        21056:6762 Routes received from Sparkle (AS6762)
remarks:        21056:3257 Routes received from GTT (AS3257)
remarks:
remarks:        ==============================================================================================================================
remarks:        Communities used to control routing announcements
remarks:        ==============================================================================================================================
remarks:        21056:6511x When advertising to Sparkle (AS6762)
remarks:        21056:6513x When advertising to Telecom Italia (AS3269)
remarks:        21056:6516x When advertising to GTT (AS3257)
remarks:        21056:6517x When advertising to Telia Sonera (AS1299)
remarks:        21056:6518x When advertising to Level3 (AS3356)
remarks:        21056:6519x When advertising to Fastweb (AS12874)
remarks:        21056:6520x When advertising to MIX members
remarks:        21056:6521x When advertising to TIX members
remarks:        21056:6522x When advertising to NAMEX members
remarks:        21056:6523x When advertising to VSIX members
remarks:        21056:6524x When advertising to DECIX members
remarks:        21056:6525x When advertising to AMSIX members
remarks:        21056:6526x When advertising to LINX members
remarks:        21056:6527x When advertising to FRANCE-IX members
remarks:        21056:6528x When advertising to Google PNI
remarks:
remarks:        ...x=0 - do not announce
remarks:        ...x=1,2,3,4 - prepend 1,2,3,4 times
remarks:        ...x=9 - set community no-export
remarks:        21056:65310 Do not announce to upstreams
remarks:        21056:65320 Do not announce to peers at any IXP
remarks:        21056:666 Black Hole Community
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         WELCOME-ITALIA-MNT
created:        2002-05-02T15:36:10Z
last-modified:  2025-12-22T13:39:46Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************




--- ARIN Whois ---


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No match found for a AS21056.


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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