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AS numbers

AS27720 Citta Telecom

AS27720 is operated by Citta Telecom and registered with LACNIC (BR) since 2013-04-22.

It announces 23 IPv4 and 32 IPv6 prefixes, 92% of them RPKI valid.

RIPE RIS sees 9 upstream and peer networks and 2 downstream networks next to it.

PeeringDB lists it as an NSP network at 2 internet exchanges and 2 facilities. Its peering policy is open.

NameCitta Telecom
Registry handleAS27720
Registry (RIR)LACNIC
CountryBrazil (BR)
Delegated on2013-04-22
Network typeNSP, South America
Peering policyOpen
IRR as-setAS-CITTA-ALL
Prefixes (IPv4 / IPv6)23 / 32
RPKI valid92% (51 / 55)
Upstreams and peers9
Downstream networks2
Websitecittatelecom.com.br

Routing health

  • AS27720 announces 23 IPv4 and 32 IPv6 prefixes.
  • 51 of 55 announced prefixes are RPKI valid.
  • 4 announced prefixes are not covered by a ROA of AS27720 (they may have none, or another network’s).
  • 9 upstreams and peers, 2 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 55

  • 138.59.96.0/22
  • 138.59.96.0/23
  • 138.59.96.0/24
  • 138.59.97.0/24
  • 138.59.98.0/23
  • 138.59.98.0/24
  • 138.59.99.0/24
  • 143.208.156.0/22
  • 143.208.156.0/24
  • 143.208.157.0/24
  • 143.208.158.0/24
  • 143.208.159.0/24
  • 177.129.8.0/21
  • 177.129.8.0/22
  • 177.129.11.0/24
  • 177.129.12.0/22
  • 177.129.12.0/24
  • 177.129.15.0/24
  • 191.128.224.0/22
  • 191.128.225.0/24
  • 191.128.226.0/24
  • 191.128.227.0/24
  • 200.95.172.0/22
  • 2804:da4:1a::/48
  • 2804:da4:1b::/48
  • 2804:da4:1c::/48
  • 2804:da4:1f::/48
  • 2804:da4:4b::/48
  • 2804:da4:5a::/48
  • 2804:da4:5c::/48
  • 2804:da4:5d::/48
  • 2804:da4:5e::/48
  • 2804:da4:5f::/48
  • 2804:da4:7b::/48
  • 2804:da4:12::/48
  • 2804:da4:14::/48
  • 2804:da4:19::/48
  • 2804:da4:40::/48
  • 2804:da4:42::/48
  • 2804:da4:45::/48
  • 2804:da4:47::/48
  • 2804:da4:49::/48
  • 2804:da4:53::/48
  • 2804:da4:54::/48
  • 2804:da4:55::/48
  • 2804:da4:57::/48
  • 2804:da4:58::/48
  • 2804:da4:59::/48
  • 2804:da4:60::/48
  • 2804:da4:63::/48
  • 2804:da4::/32
  • 2804:da4:a4::/48
  • 2804:da4:a8::/48
  • 2804:da4:a::/48
  • 2804:da4:ad::/48

Upstreams and peers 9

The networks RIPE RIS sees next to AS27720 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 18 IPv4, 1 IPv6. PeeringDB record

Internet exchanges 2
ExchangePortsSpeedRoute server
IX.br (PTT.br) Rio de Janeiro: ATM/MPLA110GYes
IX.br (PTT.br) São Paulo: ATM/MPLA130GYes
Facilities 2
FacilityCityCountry
Durand Pix - Globenet RJRio de JaneiroBR
Equinix SP2 - São PauloBarueriBR

More about AS27720

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 00:41 UTC. The country is where the AS number was registered, not necessarily where the network operates.