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AS19957

AT&T Enterprises, LLC
Announced prefixes
78
Upstreams
2
Peers
0
Downstreams
1

Adjacent ASNs

UpstreamDownstreamAS7018AS7018AS16473AS16473AS16989AS16989AS19957

Neighbor nodes aren't clickable. To look up an ASN, use the ASN lookup page

All Neighbor ASNs

Upstream2

Buys transit from them

  • AS7018
  • AS16473

Peer0

Settlement-free traffic exchange

None

Downstream1

Buys transit from this AS

  • AS16989

Recent Prefix Changes

latest 9

IP prefixes this ASN started or stopped announcing (derived by diffing successive data syncs).

  • Announced12.165.35.0/242026-09-02
  • Announced12.230.239.0/242026-09-02
  • Announced65.82.99.0/242026-09-02
  • Announced68.156.24.0/212026-09-02
  • Announced70.150.248.0/212026-09-02
  • Announced70.158.144.0/202026-09-02
  • Announced74.252.160.0/202026-09-02
  • Announced74.254.176.0/222026-09-02
  • Announced74.254.180.0/242026-09-02

Data: local · Updated 2026-09-03 23:53:53