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IP ranges

Telefónica IP ranges

Every IPv4 and IPv6 range that Telefónica (AS12956, AS3352) currently announces on the internet, with CIDR and start/end IP, free to download as TXT or CSV. Data snapshot: 2026-11-02.

Telefónica announces 237 IPv4 prefixes covering 10,526,976 addresses, and 20 IPv6 prefixes, through AS12956, AS3352. The lists below are a snapshot of 2026-11-02 taken from the public BGP routing table, sorted by address and kept as announced.

ASNAS12956 · AS3352
IPv4 prefixes237
IPv4 addresses10,526,976Overlaps are counted once
IPv6 prefixes20
Data snapshot

Download the complete list

The complete list has 257 ranges (IPv4 and IPv6). TXT has one CIDR per line; CSV has the columns cidr, version, start_ip, end_ip and addresses.

Download TXTDownload CSVIPv4 only (TXT)IPv6 only (TXT)

Telefónica IPv4 ranges

IPv4 ranges announced by Telefónica: CIDR, start and end IP, address count
CIDRStart IP – end IPAddresses
2.57.224.0/222.57.224.0–2.57.227.2551,024
2.136.0.0/162.136.0.0–2.136.255.25565,536
2.137.0.0/162.137.0.0–2.137.255.25565,536
2.138.0.0/162.138.0.0–2.138.255.25565,536
2.139.0.0/162.139.0.0–2.139.255.25565,536
2.140.0.0/162.140.0.0–2.140.255.25565,536
2.141.0.0/162.141.0.0–2.141.255.25565,536
2.142.0.0/162.142.0.0–2.142.255.25565,536
2.143.0.0/162.143.0.0–2.143.255.25565,536
5.45.8.0/215.45.8.0–5.45.15.2552,048
5.53.0.0/215.53.0.0–5.53.7.2552,048
5.205.0.0/165.205.0.0–5.205.255.25565,536
5.255.144.0/215.255.144.0–5.255.151.2552,048
37.10.128.0/1737.10.128.0–37.10.255.25532,768
37.12.0.0/1637.12.0.0–37.12.255.25565,536
37.13.0.0/1637.13.0.0–37.13.255.25565,536
37.158.0.0/1637.158.0.0–37.158.255.25565,536
45.135.52.0/2245.135.52.0–45.135.55.2551,024
45.148.220.0/2445.148.220.0–45.148.220.255256
66.119.64.0/1966.119.64.0–66.119.95.2558,192
66.201.160.0/1966.201.160.0–66.201.191.2558,192
66.249.192.0/1966.249.192.0–66.249.223.2558,192
79.144.0.0/1679.144.0.0–79.144.255.25565,536
79.145.0.0/1679.145.0.0–79.145.255.25565,536
79.146.0.0/1679.146.0.0–79.146.255.25565,536
79.147.0.0/1679.147.0.0–79.147.255.25565,536
79.148.0.0/1679.148.0.0–79.148.255.25565,536
79.149.0.0/1679.149.0.0–79.149.255.25565,536
79.150.0.0/1679.150.0.0–79.150.255.25565,536
79.151.0.0/1679.151.0.0–79.151.255.25565,536
79.152.0.0/1679.152.0.0–79.152.255.25565,536
79.153.0.0/1679.153.0.0–79.153.255.25565,536
79.154.0.0/1679.154.0.0–79.154.255.25565,536
79.155.0.0/1679.155.0.0–79.155.255.25565,536
79.156.0.0/1679.156.0.0–79.156.255.25565,536
79.157.0.0/1679.157.0.0–79.157.255.25565,536
79.158.0.0/1679.158.0.0–79.158.255.25565,536
79.159.0.0/1679.159.0.0–79.159.255.25565,536
80.24.0.0/1680.24.0.0–80.24.255.25565,536
80.25.0.0/1680.25.0.0–80.25.255.25565,536
80.26.0.0/1680.26.0.0–80.26.255.25565,536
80.27.0.0/1680.27.0.0–80.27.255.25565,536
80.28.0.0/1680.28.0.0–80.28.255.25565,536
80.29.0.0/1680.29.0.0–80.29.255.25565,536
80.30.0.0/1680.30.0.0–80.30.255.25565,536
80.31.0.0/1680.31.0.0–80.31.255.25565,536
80.32.0.0/1680.32.0.0–80.32.255.25565,536
80.35.0.0/1680.35.0.0–80.35.255.25565,536
80.38.0.0/1680.38.0.0–80.38.255.25565,536
80.39.0.0/1680.39.0.0–80.39.255.25565,536
80.58.0.0/1680.58.0.0–80.58.255.25565,536
80.59.0.0/1680.59.0.0–80.59.255.25565,536
80.76.8.0/2180.76.8.0–80.76.15.2552,048
81.32.0.0/1681.32.0.0–81.32.255.25565,536
81.33.0.0/1681.33.0.0–81.33.255.25565,536
81.34.0.0/1681.34.0.0–81.34.255.25565,536
81.35.0.0/1681.35.0.0–81.35.255.25565,536
81.36.0.0/1681.36.0.0–81.36.255.25565,536
81.37.0.0/1681.37.0.0–81.37.255.25565,536
81.38.0.0/1681.38.0.0–81.38.255.25565,536
81.39.0.0/1681.39.0.0–81.39.255.25565,536
81.40.0.0/1681.40.0.0–81.40.255.25565,536
81.41.0.0/1681.41.0.0–81.41.255.25565,536
81.42.0.0/1681.42.0.0–81.42.255.25565,536
81.43.0.0/1681.43.0.0–81.43.255.25565,536
81.44.0.0/1681.44.0.0–81.44.255.25565,536
81.45.0.0/1681.45.0.0–81.45.255.25565,536
81.46.0.0/1681.46.0.0–81.46.255.25565,536
81.47.0.0/1681.47.0.0–81.47.255.25565,536
81.90.104.0/2481.90.104.0–81.90.104.255256
81.90.110.0/2481.90.110.0–81.90.110.255256
81.90.111.0/2481.90.111.0–81.90.111.255256
81.173.104.0/2181.173.104.0–81.173.111.2552,048
82.198.96.0/1982.198.96.0–82.198.127.2558,192
83.32.0.0/1683.32.0.0–83.32.255.25565,536
83.33.0.0/1683.33.0.0–83.33.255.25565,536
83.34.0.0/1683.34.0.0–83.34.255.25565,536
83.35.0.0/1683.35.0.0–83.35.255.25565,536
83.36.0.0/1683.36.0.0–83.36.255.25565,536
83.37.0.0/1683.37.0.0–83.37.255.25565,536
83.38.0.0/1683.38.0.0–83.38.255.25565,536
83.39.0.0/1683.39.0.0–83.39.255.25565,536
83.40.0.0/1683.40.0.0–83.40.255.25565,536
83.41.0.0/1683.41.0.0–83.41.255.25565,536
83.42.0.0/1683.42.0.0–83.42.255.25565,536
83.43.0.0/1683.43.0.0–83.43.255.25565,536
83.44.0.0/1683.44.0.0–83.44.255.25565,536
83.45.0.0/1683.45.0.0–83.45.255.25565,536
83.46.0.0/1683.46.0.0–83.46.255.25565,536
83.47.0.0/1683.47.0.0–83.47.255.25565,536
83.48.0.0/1683.48.0.0–83.48.255.25565,536
83.49.0.0/1683.49.0.0–83.49.255.25565,536
83.50.0.0/1683.50.0.0–83.50.255.25565,536
83.51.0.0/1683.51.0.0–83.51.255.25565,536
83.52.0.0/1683.52.0.0–83.52.255.25565,536
83.53.0.0/1683.53.0.0–83.53.255.25565,536
83.54.0.0/1683.54.0.0–83.54.255.25565,536
83.55.0.0/1683.55.0.0–83.55.255.25565,536
83.56.0.0/1683.56.0.0–83.56.255.25565,536
83.57.0.0/1683.57.0.0–83.57.255.25565,536
83.58.0.0/1683.58.0.0–83.58.255.25565,536
83.59.0.0/1683.59.0.0–83.59.255.25565,536
83.60.0.0/1683.60.0.0–83.60.255.25565,536
83.61.0.0/1683.61.0.0–83.61.255.25565,536
83.62.0.0/1683.62.0.0–83.62.255.25565,536
83.63.0.0/1683.63.0.0–83.63.255.25565,536
83.230.128.0/1783.230.128.0–83.230.255.25532,768
84.16.0.0/1984.16.0.0–84.16.31.2558,192
85.91.64.0/1985.91.64.0–85.91.95.2558,192
88.0.0.0/1688.0.0.0–88.0.255.25565,536
88.1.0.0/1688.1.0.0–88.1.255.25565,536
88.2.0.0/1688.2.0.0–88.2.255.25565,536
88.3.0.0/1688.3.0.0–88.3.255.25565,536
88.4.0.0/1688.4.0.0–88.4.255.25565,536
88.5.0.0/1688.5.0.0–88.5.255.25565,536
88.6.0.0/1688.6.0.0–88.6.255.25565,536
88.7.0.0/1688.7.0.0–88.7.255.25565,536
88.8.0.0/1688.8.0.0–88.8.255.25565,536
88.9.0.0/1688.9.0.0–88.9.255.25565,536
88.10.0.0/1688.10.0.0–88.10.255.25565,536
88.11.0.0/1688.11.0.0–88.11.255.25565,536
88.12.0.0/1688.12.0.0–88.12.255.25565,536
88.13.0.0/1688.13.0.0–88.13.255.25565,536
88.14.0.0/1688.14.0.0–88.14.255.25565,536
88.15.0.0/1688.15.0.0–88.15.255.25565,536
88.16.0.0/1688.16.0.0–88.16.255.25565,536
88.17.0.0/1688.17.0.0–88.17.255.25565,536
88.18.0.0/1688.18.0.0–88.18.255.25565,536
88.19.0.0/1688.19.0.0–88.19.255.25565,536
88.20.0.0/1688.20.0.0–88.20.255.25565,536
88.21.0.0/1688.21.0.0–88.21.255.25565,536
88.22.0.0/1688.22.0.0–88.22.255.25565,536
88.23.0.0/1688.23.0.0–88.23.255.25565,536
88.24.0.0/1688.24.0.0–88.24.255.25565,536
88.25.0.0/1688.25.0.0–88.25.255.25565,536
88.26.0.0/1688.26.0.0–88.26.255.25565,536
88.27.0.0/1688.27.0.0–88.27.255.25565,536
88.28.0.0/1688.28.0.0–88.28.255.25565,536
88.29.0.0/1688.29.0.0–88.29.255.25565,536
88.30.0.0/1688.30.0.0–88.30.255.25565,536
88.31.0.0/1688.31.0.0–88.31.255.25565,536
89.32.176.0/2189.32.176.0–89.32.183.2552,048
89.32.183.0/2489.32.183.0–89.32.183.255256
94.142.96.0/1994.142.96.0–94.142.127.2558,192
95.120.0.0/1695.120.0.0–95.120.255.25565,536
95.121.0.0/1695.121.0.0–95.121.255.25565,536
95.122.0.0/1695.122.0.0–95.122.255.25565,536
95.123.0.0/1695.123.0.0–95.123.255.25565,536
95.124.0.0/1695.124.0.0–95.124.255.25565,536
95.125.0.0/1695.125.0.0–95.125.255.25565,536
95.126.0.0/1695.126.0.0–95.126.255.25565,536
95.127.0.0/1695.127.0.0–95.127.255.25565,536
129.192.16.0/23129.192.16.0–129.192.17.255512
168.195.56.0/22168.195.56.0–168.195.59.2551,024
176.52.248.0/21176.52.248.0–176.52.255.2552,048
176.80.0.0/16176.80.0.0–176.80.255.25565,536
176.82.0.0/16176.82.0.0–176.82.255.25565,536
176.83.0.0/16176.83.0.0–176.83.255.25565,536
176.84.0.0/16176.84.0.0–176.84.255.25565,536
176.85.0.0/16176.85.0.0–176.85.255.25565,536
176.86.0.0/16176.86.0.0–176.86.255.25565,536
176.87.0.0/16176.87.0.0–176.87.255.25565,536
178.255.108.0/24178.255.108.0–178.255.108.255256
178.255.109.0/24178.255.109.0–178.255.109.255256
178.255.110.0/24178.255.110.0–178.255.110.255256
181.199.208.0/20181.199.208.0–181.199.223.2554,096
185.43.180.0/22185.43.180.0–185.43.183.2551,024
185.51.46.0/24185.51.46.0–185.51.46.255256
185.51.47.0/24185.51.47.0–185.51.47.255256
185.52.17.0/24185.52.17.0–185.52.17.255256
185.153.168.0/22185.153.168.0–185.153.171.2551,024
185.190.8.0/22185.190.8.0–185.190.11.2551,024
185.197.64.0/22185.197.64.0–185.197.67.2551,024
185.203.65.0/24185.203.65.0–185.203.65.255256
185.210.28.0/22185.210.28.0–185.210.31.2551,024
188.95.216.0/21188.95.216.0–188.95.223.2552,048
188.214.148.0/23188.214.148.0–188.214.149.255512
190.66.4.0/24190.66.4.0–190.66.4.255256
190.98.128.0/19190.98.128.0–190.98.159.2558,192
190.98.160.0/19190.98.160.0–190.98.191.2558,192
192.101.1.0/24192.101.1.0–192.101.1.255256
193.23.135.0/24193.23.135.0–193.23.135.255256
193.36.134.0/23193.36.134.0–193.36.135.255512
193.148.144.0/20193.148.144.0–193.148.159.2554,096
193.149.6.0/24193.149.6.0–193.149.6.255256
193.152.0.0/16193.152.0.0–193.152.255.25565,536
193.153.0.0/16193.153.0.0–193.153.255.25565,536
194.32.114.0/24194.32.114.0–194.32.114.255256
194.32.115.0/24194.32.115.0–194.32.115.255256
194.69.225.0/24194.69.225.0–194.69.225.255256
194.179.0.0/17194.179.0.0–194.179.127.25532,768
194.179.0.0/18194.179.0.0–194.179.63.25516,384
194.179.34.0/24194.179.34.0–194.179.34.255256
194.179.64.0/18194.179.64.0–194.179.127.25516,384
194.179.112.0/24194.179.112.0–194.179.112.255256
194.224.0.0/16194.224.0.0–194.224.255.25565,536
194.224.157.0/24194.224.157.0–194.224.157.255256
195.53.0.0/16195.53.0.0–195.53.255.25565,536
195.53.193.0/24195.53.193.0–195.53.193.255256
195.55.0.0/16195.55.0.0–195.55.255.25565,536
195.55.78.0/24195.55.78.0–195.55.78.255256
195.55.79.0/24195.55.79.0–195.55.79.255256
195.57.0.0/16195.57.0.0–195.57.255.25565,536
195.57.5.0/24195.57.5.0–195.57.5.255256
195.57.88.0/23195.57.88.0–195.57.89.255512
195.76.0.0/16195.76.0.0–195.76.255.25565,536
195.76.141.0/24195.76.141.0–195.76.141.255256
195.76.164.0/24195.76.164.0–195.76.164.255256
195.77.0.0/16195.77.0.0–195.77.255.25565,536
195.77.57.0/24195.77.57.0–195.77.57.255256
195.235.0.0/16195.235.0.0–195.235.255.25565,536
195.235.95.0/24195.235.95.0–195.235.95.255256
195.235.188.0/24195.235.188.0–195.235.188.255256
195.235.225.0/24195.235.225.0–195.235.225.255256
195.235.241.0/24195.235.241.0–195.235.241.255256
195.235.242.0/24195.235.242.0–195.235.242.255256
195.245.248.0/24195.245.248.0–195.245.248.255256
198.52.248.0/21198.52.248.0–198.52.255.2552,048
212.170.0.0/16212.170.0.0–212.170.255.25565,536
212.170.156.0/24212.170.156.0–212.170.156.255256
212.170.159.0/24212.170.159.0–212.170.159.255256
213.0.0.0/16213.0.0.0–213.0.255.25565,536
213.4.0.0/16213.4.0.0–213.4.255.25565,536
213.96.0.0/16213.96.0.0–213.96.255.25565,536
213.97.0.0/16213.97.0.0–213.97.255.25565,536
213.98.0.0/16213.98.0.0–213.98.255.25565,536
213.99.0.0/16213.99.0.0–213.99.255.25565,536
213.99.16.0/22213.99.16.0–213.99.19.2551,024
213.99.31.0/24213.99.31.0–213.99.31.255256
213.99.44.0/24213.99.44.0–213.99.44.255256
213.140.32.0/19213.140.32.0–213.140.63.2558,192
216.184.96.0/19216.184.96.0–216.184.127.2558,192
217.11.96.0/19217.11.96.0–217.11.127.2558,192
217.124.0.0/16217.124.0.0–217.124.255.25565,536
217.125.0.0/16217.125.0.0–217.125.255.25565,536
217.126.0.0/16217.126.0.0–217.126.255.25565,536
217.127.0.0/16217.127.0.0–217.127.255.25565,536

All 237 ranges are listed.

Telefónica IPv6 ranges

IPv6 ranges announced by Telefónica: CIDR, start and end IP, address count
CIDRStart IP – end IPAddresses
2001:1498::/322001:1498::–2001:1498:ffff:ffff:ffff:ffff:ffff:ffff296
2001:1820::/322001:1820::–2001:1820:ffff:ffff:ffff:ffff:ffff:ffff296
2800:240::/322800:240::–2800:240:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9000::/232a02:9000::–2a02:91ff:ffff:ffff:ffff:ffff:ffff:ffff2105
2a02:9144::/322a02:9144::–2a02:9144:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9145::/322a02:9145::–2a02:9145:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:914a::/322a02:914a::–2a02:914a:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:914b::/322a02:914b::–2a02:914b:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:914c::/322a02:914c::–2a02:914c:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:914d::/322a02:914d::–2a02:914d:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:914e::/322a02:914e::–2a02:914e:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:914f::/322a02:914f::–2a02:914f:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9150::/322a02:9150::–2a02:9150:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9151::/322a02:9151::–2a02:9151:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9154::/322a02:9154::–2a02:9154:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9155::/322a02:9155::–2a02:9155:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9156::/322a02:9156::–2a02:9156:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9157::/322a02:9157::–2a02:9157:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:ee80:4174::/482a02:ee80:4174::–2a02:ee80:4174:ffff:ffff:ffff:ffff:ffff280
2a06:f0c0::/292a06:f0c0::–2a06:f0c7:ffff:ffff:ffff:ffff:ffff:ffff299

All 20 ranges are listed.

About the Telefónica IP range data

  • ASNs and holders

    Telefónica announces its prefixes from AS12956, AS3352. Holders in the registry: AS12956 (TELXIUS TELEFONICA GLOBAL SOLUTIONS SL); AS3352 (Telefonica_de_EspaNa TELEFONICA DE ESPANA S.A.U.).

  • What the list contains

    The ranges are the prefixes these ASNs announce in the public BGP routing table (obtained through RIPEstat), with adjacent blocks left unmerged. This is not an ownership record: it can include prefixes of customers and leased address space, and it can miss routes that very few peers see. Snapshot of 2026-11-02.

  • Typical uses

    Allow or block traffic from Telefónica in a firewall, WAF or nginx, label source IPs in your logs by network, or test with a CIDR match whether an IP belongs to Telefónica. Remember that cloud and carrier address space also runs the services of customers, so blocking a whole network can hit unrelated sites.

How to use the Telefónica IP list

  1. Start with the tables above: one for IPv4 and one for IPv6, each row with CIDR, start IP – end IP and address count.
  2. Choose Download TXT or Download CSV for the complete list. The file has all 257 ranges, not only the first rows shown on the page.
  3. Import the TXT as one address set into your firewall, router or ipset, or paste the CIDRs into a cloud security group rule.
  4. Check the snapshot date (2026-11-02) before using it in production. Cloud ranges change often, so compare with the official range file published by the provider.

Telefónica IP ranges: frequently asked questions

How many IP ranges does Telefónica have?

As of 2026-11-02, Telefónica announces 237 IPv4 prefixes covering 10,526,976 addresses and 20 IPv6 prefixes in the public BGP routing table, through AS12956, AS3352.

What is the ASN of Telefónica?

Telefónica uses AS12956, AS3352. Holders in the registry: AS12956 (TELXIUS TELEFONICA GLOBAL SOLUTIONS SL); AS3352 (Telefonica_de_EspaNa TELEFONICA DE ESPANA S.A.U.). Large organisations often run several ASNs, and this page merges the ones listed here.

How do I use the Telefónica IP list for a firewall allowlist or blocklist?

Download the TXT file (one CIDR per line) and import it into ipset, nftables, an nginx allow or deny include, a router address list or a cloud security group. Import the 257 ranges as one address set rather than as separate rules. The address space of Telefónica also hosts the services of its customers, so blocking all of it can cut off unrelated sites.

How often is the Telefónica IP list updated?

The list is a snapshot of 2026-11-02, regenerated about once a week from public BGP data (RIPEstat). Announcements change every day, so download it again before using it in production, and for cloud providers also compare it with the official range file they publish.

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