All ASNs

Autonomous System details for AS12874

AS12874

Fastweb SpA • fastweb.it

AS12874 — Fastweb SpA

AS Name

FASTWEB

Country

Italy (IT)

Website

fastweb.it

Number of IPv4

5,890,560

Number of IPv6

7.92 × 10²⁹

ASN type

ISP

Status

Allocated

Registry

RIPE

Allocated

September 13, 2002

Last updated

June 17, 2026

IP Ranges

93 IPv4 prefixes, 18 IPv6 prefixes

Prefix	Company	Number of IPs
2.16.17.0/24	Akamai Technologies	256
2.19.179.0/24	Akamai Technologies	256
2.224.0.0/13	Fastweb SpA	524,288
2.232.0.0/13	PAT/NAT IP addresses POP 3102 for	524,288
5.1.44.0/24	Viama s.r.l.	256
5.152.240.0/21	Sogei Societa' Generale d' Informatica S.p.A.	2,048
23.61.204.0/24	Akamai Technologies, Inc.	256
31.131.240.0/21	SOCIETA PER AZIONI ESERCIZI AEROPORTUALI SEA	2,048
37.99.240.0/24	IRP ERMESLINK 1	256
37.153.135.0/24	virtual solution srl	256
37.186.192.0/18	Fastweb SpA	16,384
45.82.228.0/22	Citta' Metropolitana di Milano	1,024
45.90.124.0/24	Fondazione Policlinico Universitario Campus Bio-Medico	256
62.101.64.0/19	Fastweb SpA	8,192
62.101.96.0/19	Infrastructure for Fastweb's main location	8,192
62.101.124.0/22	Infrastructure for Fastweb's main location	1,024
62.177.0.0/20	SIR s.r.l.	4,096
62.182.103.0/24	R.S.T. S.R.L.	256
64.126.250.0/24	Cegedim.Cloud SASU	256
80.67.66.0/24	Akamai International B.V.	256
81.208.0.0/18	Fastweb SpA	16,384
81.208.64.0/18	DC-POP-0101-3 public subnet	16,384
83.103.0.0/17	Fastweb SpA	32,768
83.103.0.0/18	Fastweb SpA	16,384
83.103.64.0/18	pool for Cache OTT Infrastructure	16,384
84.53.184.0/24	Akamai Technologies	256
85.18.0.0/16	Infrastructure for Fastweb's main location	65,536
85.18.0.0/17	Infrastructure for Fastweb's main location	32,768
85.18.128.0/17	MOA IP address POP 3602 for	32,768
85.118.144.0/23	MDS NET S.R.L.	512
89.39.200.0/24	virtual solution srl	256
89.43.192.0/24	virtual solution srl	256
89.96.0.0/15	Fastweb SpA	131,072
89.96.0.0/16	Fastweb SpA	65,536
89.97.0.0/16	Infrastructure for Fastweb's main location	65,536
91.225.244.0/22	Netvalue s.r.l.	1,024
92.223.128.0/17	Fastweb SpA	32,768
92.242.172.0/22	Dedagroup S.P.A	1,024
93.32.0.0/12	Fastweb SpA	1,048,576
93.32.0.0/13	Fastweb SpA	524,288
93.32.0.0/14	Fastweb SpA	262,144
93.36.0.0/14	Fastweb SpA	262,144
93.40.0.0/13	VULA IP addresses POP 4109 for	524,288
93.40.0.0/14	VULA IP addresses POP 4109 for	262,144
93.44.0.0/14	Infrastructure for Fastweb's MVNO services	262,144
93.48.0.0/13	Fastweb SpA	524,288
93.56.0.0/14	VIA BERNINA SNC	262,144
93.60.0.0/15	Infrastructure for Fastwebs main location	131,072
93.62.0.0/15	Infrastructure for Fastweb's main location	131,072
151.0.128.0/17	GIGA public subnet	32,768
158.255.240.0/21	NETRIBE S.R.L.	2,048
170.248.136.0/24	Accenture LLP	256
176.122.196.0/23	DECATHLON Italia S.r.l.	512
176.122.198.0/24	DECATHLON Italia S.r.l.	256
185.7.112.0/22	Fastweb SpA	1,024
185.22.84.0/24	Public Cloud Assignment	256
185.22.85.0/24	INFOAZIENDE S.R.L.	256
185.27.72.0/24	Flyber S.R.L.	256
185.27.73.0/24	Flyber S.R.L.	256
185.36.72.0/22	virtual solution srl	1,024
185.43.19.0/24	Arpitel s.r.l.	256
185.69.188.0/22	ESSENDI ITALIA S.R.L.	1,024
185.139.48.0/24	Roberto Cardone trading as Megacom	256
185.139.49.0/24	Roberto Cardone trading as Megacom	256
185.146.134.0/24	IT INFORMATICA95SERVIZI 3SUB	256
185.162.179.0/24	Jogcorp SAS	256
185.169.184.0/24	UAN COMPANY S.R.L.	256
185.169.185.0/24	VARITT2	256
185.169.186.0/24	VARITT3	256
185.169.187.0/24	VARITT4	256
185.190.214.0/24	ARTI INFORMATICHE S.R.L.	256
185.190.215.0/24	ARTI INFORMATICHE S.R.L.	256
185.219.180.0/22	ARMA DEI CARABINIERI	1,024
185.219.232.0/24	Ferrero Technical Services S.r.l.	256
185.219.234.0/24	Ferrero Technical Services S.r.l.	256
185.223.153.0/24	Invermae Solutions SL	256
193.3.50.0/24	SACE SPA	256
193.27.28.0/22	SISTEMI INFORMATIVI S.r.l.	1,024
193.35.4.0/22	Giovanni Di Stefano trading as Ermeslink	1,024
193.42.234.0/24	IN.TE.S.A. S.P.A.	256
193.42.238.0/24	IN.TE.S.A. S.P.A.	256
193.43.16.0/24	Istituto Nazionale di Documentazione, Innovazione e Ricerca educativa (INDIRE)	256
193.43.17.0/24	Istituto Nazionale di Documentazione, Innovazione e Ricerca educativa (INDIRE)	256
193.169.20.0/24	virtual solution srl	256
193.193.0.0/19	AURATEC s.r.l.	8,192
194.5.146.0/24	ORG-AIYUN-RIPE	256
194.59.208.0/22	ENGIE ITALIA S.P.A.	1,024
194.63.146.0/24	SACE SPA	256
194.99.35.0/24	Olivetti Investments S.R.L.	256
213.140.0.0/20	Infrastructure for Fastweb's main location	4,096
213.140.16.0/20	Fastweb SpA	4,096
213.156.32.0/20	Streaming and gaming public subnet	4,096
213.156.48.0/20	BPM public subnet	4,096
2001:b00::/29	Fastweb SpA	6.34 × 10²⁹
2001:b07::/32	Infrastructure for Fastweb's main location	7.92 × 10²⁸
2001:b07::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:1000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:2000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:3000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:4000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:5000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:6000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:7000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:8000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:9000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:a000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:b000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:c000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:d000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:e000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷
2001:b07:f000::/36	Infrastructure for Fastweb's main location	4.95 × 10²⁷

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS12874

62 peers

AS680 AS1267 AS1764 AS2119 AS5392 AS5394 AS5405 AS6461 AS6939 AS8218 AS8220 AS8426 AS8455 AS8660 AS9002 AS9044 AS12637 AS12779 AS1000 AS3741 AS6667 AS12969 AS14537 AS28917 AS29075 AS33891 AS35280 AS41327 AS42689 AS47957 AS49544 AS50877 AS51185 AS52320 AS56911 AS13030 AS13237 AS15605 AS16347 AS20811 AS20912 AS21412 AS24961 AS30844 AS32590 AS34549 AS37497 AS39120 AS39351 AS42708 AS49524 AS50673 AS56655 AS57111 AS60068 AS61049 AS132337 AS137409 AS199524 AS207841 AS271253 AS398465

AS12874 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS12874

6 upstreams

AS1273 AS1299 AS3303 AS3356 AS6762 AS57304

AS12874 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS12874 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS12874

201 downstreams

AS3275 AS3573 AS5397 AS6831 AS6836 AS8884 AS8978 AS12481 AS12650 AS13018 AS13253 AS13254 AS13284 AS15553 AS15584 AS15660 AS15831 AS15887 AS15981 AS16052 AS20942 AS20981 AS21006 AS21034 AS21134 AS21176 AS21433 AS21451 AS21469 AS24717 AS24780 AS25156 AS25301 AS25350 AS25518 AS28675 AS29082 AS29312 AS31248 AS31467 AS33964 AS34613 AS34759 AS35066 AS35114 AS35519 AS39019 AS39250 AS41094 AS41100 AS41160 AS41169 AS41325 AS41651 AS41827 AS41836 AS41986 AS42176 AS42650 AS42764 AS42933 AS42985 AS43279 AS43731 AS43954 AS43976 AS43988 AS44512 AS44767 AS44831 AS44936 AS45041 AS47875 AS48135 AS48382 AS48394 AS48423 AS49212 AS49265 AS49535 AS49733 AS49924 AS49976 AS50394 AS51065 AS51139 AS51502 AS51580 AS56320 AS56376 AS56754 AS56962 AS57039 AS57144 AS57300 AS57329 AS57343 AS57525 AS59715 AS60087 AS60443 AS60460 AS60756 AS60814 AS62093 AS196749 AS196784 AS196874 AS196880 AS196892 AS197845 AS197859 AS197891 AS197948 AS198045 AS198319 AS198363 AS198387 AS198800 AS199342 AS199477 AS199509 AS199864 AS200073 AS200156 AS200409 AS200424 AS200583 AS200689 AS200761 AS200767 AS200786 AS200901 AS201045 AS201095 AS201220 AS201474 AS201565 AS201919 AS202098 AS202132 AS202382 AS202460 AS202507 AS202617 AS202675 AS202803 AS203601 AS203612 AS203672 AS204180 AS204358 AS204379 AS204386 AS204622 AS204958 AS205195 AS205716 AS205925 AS206135 AS206588 AS206615 AS206655 AS206701 AS206821 AS206864 AS206988 AS206992 AS207022 AS207042 AS207157 AS207342 AS207453 AS207594 AS207697 AS207715 AS207761 AS208000 AS208354 AS208788 AS208862 AS209058 AS209071 AS209137 AS209246 AS209353 AS209402 AS209812 AS209887 AS210129 AS210159 AS210569 AS210875 AS211122 AS211312 AS211396 AS212659 AS212726 AS213522 AS216019 AS216257

AS12874 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.