Autonomous system
AS14203 JUNIPER-NETWORKS
Unclassified ARIN
Summary
Juniper Networks, Inc.
enterprise business infrastructure
It announces an eight-address prefix, smaller than most networks on the internet will accept.
What it's used for
- A router vendor's corporate network. 6,920 addresses across 14 IPv4 prefixes and 14 IPv6 prefixes, with 16 observed BGP neighbours.
Notable
- The smallest announcement is
165.254.24.16/29, eight addresses. - Eight blocks carry the netname
JUNIPER-NET;12.0.126.0/23carriesJUNIPER-51-126under a separate all-capitals registrant record. 67.91.204.0/23carriesXO-67-91-204-0and208.184.90.0/23carriesABOVENET-6registered toZayo Bandwidth, both provider names rather than the announcer's.- Three of eighteen sampled addresses returned names of the form
net66-129-225.juniper.net.
Interesting
- Prefixes that small are filtered by most large networks, which stop at
/24. Announcing one is either an experiment or a standing test of who still carries it, and a company that builds routers is unusually well placed to care about the answer. - Two blocks are named after carriers, one of which no longer exists under that name. Address space handed out by a provider keeps the provider's label forever, even after the customer starts announcing it themselves.
- The reverse names identify a
/24rather than a host, so every address in a block answers with the same name. A vendor's corporate network revealing nothing per-machine is a choice, not an oversight.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange San Jose (Bay Area) | San Jose, United States | 206.223.117.31 |
| Equinix IBX Secaucus | Secaucus, United States | 206.223.117.31 |
Transit providers
11 upstream, 0 downstream and 17 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2914 | NTT America, Inc. | 481 |
| AS33650 | Comcast Cable Communications, LLC | 258 |
| AS7018 | AT&T Enterprises, LLC | 142 |
| AS33651 | Comcast Cable Communications, LLC | 127 |
| AS20055 | Wholesail networks LLC | 98 |
| AS6939 | Hurricane Electric LLC | 72 |
| AS7015 | Comcast Cable Communications, LLC | 71 |
| AS33667 | Comcast Cable Communications, LLC | 60 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 6.92K addresses IPv6 14 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 28 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS14203- Registry name
- JUNIPER-NETWORKS
- Registrant
- Juniper Networks, Inc.
- Abuse contact
- abuse@juniper.net
- Registered
- 1999-11-09
- Last changed
- 2018-08-03
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 85% valid · 22 valid, 4 with no ROA
- ROAs
- 9 authorising AS14203
- ASPA
- no ASPA record
- IRR
- 77% registered · 20 of 26 announcements
- Route objects
- 17 naming AS14203
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-17. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere