Autonomous System
AS19855 — MASERGY - Masergy Communications, Inc.(US)
Last fetched
AS19855 is an Autonomous System operated by MASERGY - Masergy Communications, Inc. and registered in US. As of Sun, 06 Sep 2026 13:21:24 GMT, it announces 103 routed IP prefixes and peers with 21 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS19855 announces 103 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 45.45.151.0/24
- 64.47.0.0/23
- 64.47.3.0/24
- 64.47.4.0/24
- 64.47.5.0/24
- 64.47.14.0/24
- 64.47.18.0/24
- 64.47.21.0/24
- 64.47.24.0/24
- 64.47.27.0/24
- 64.47.28.0/23
- 64.47.30.0/23
- 64.47.36.0/23
- 64.47.40.0/23
- 64.47.43.0/24
- 64.47.46.0/24
- 64.47.48.0/24
- 64.47.49.0/24
- 64.47.50.0/23
- 64.47.56.0/23
- 64.47.61.0/24
- 64.47.62.0/23
- 64.47.72.0/22
- 64.47.76.0/22
- 64.47.84.0/22
Peering ecosystem
21 distinct peers via BGP. The first 21 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS12222 | AKAMAI - Akamai Technologies, Inc. | US |
| AS12956 | IDDQD-AS - IDDQD-AS | ES |
| AS13860 | LFG - Lincoln National Corporation | US |
| AS14514 | PHJW - Paul, Hastings, Janofsky & Walker LLP | US |
| AS15027 | FH-ASN-15027 - Foley Hoag LLP | US |
| AS15126 | SMAI - Suzuki Marine USA, LLC | US |
| AS16541 | ERICKSON-AS - Erickson Living Management, LLC | US |
| AS174 | COGENT-174 - Cogent Communications, LLC | US |
| AS20340 | CALLTOWER - CallTower, Inc. | US |
| AS20427 | AAAE - American Association of Airport Executives | US |
| AS22775 | MOORECAP - Moore Capital Management | US |
| AS26428 | TALBOTS - The Talbots, Inc. | US |
| AS33014 | MARLINLEASING - MARLIN LEASING CORPORATION | US |
| AS33491 | COMCAST-33491 - Comcast Cable Communications, LLC | US |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | US |
| AS3491 | PCCWG-APAC-HK - PCCW Global (HK) Ltd. | HK |
| AS394301 | DEXCOM-INC - Dexcom, INC. | US |
| AS40399 | MASERGY-CLOUD-COMMUNICATIONS - Masergy Cloud Communications, Inc. | US |
| AS7473 | SINGTEL-AS-AP - Singapore Telecommunications Ltd | SG |
| AS7474 | OPTUSCOM-AS01-AU - SingTel Optus Pty Ltd | AU |
| AS7922 | COMCAST-7922 - Comcast Cable Communications, LLC | US |
Blast radius
Count of dependent hostnames if AS19855 disappeared from the routing table.
Blast radius: Computing — check back later. The precompute pipeline refreshes this panel within a few days.
MOAS / hijack watch
Prefixes routed by AS19855 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.
No active MOAS conflicts. Every prefix announced by AS19855 is unique to AS19855 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS19855.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS19855"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.