Autonomous system
AS10838 OCEANIC-INTERNET-RR
Residential ARIN
Summary
Charter Communications (Oceanic / Spectrum)
isp legacy
OCEANIC-INTERNET-RR is held by Charter Communications. The handle is a fossil: Oceanic Cable was the Hawaii cable operator that became Oceanic Time Warner Cable, and -RR is Road Runner, Time Warner's consumer broadband brand. Charter absorbed the lot in the 2016 Time Warner Cable merger and now sells it all as Spectrum.
What it's used for
Consumer cable broadband. RIS sees 47 announced IPv4 prefixes carrying about 165,632 addresses and 6 IPv6 prefixes, against a single observed BGP neighbour — the giveaway that this is not an independent network at all. One peer means the AS sits entirely behind its parent's backbone, originating a slice of subscriber space rather than making its own routing decisions.
The reverse DNS confirms the customer type without ambiguity. Nearly every sampled address resolves under res.spectrum.com — Charter's residential pool naming, in the syn-0NN-NNN-NNN-NNN zero-padded form the cable plant generates automatically. A couple of samples land under biz.spectrum.com, the small-business variant, but the space is overwhelmingly residential.
Notable
The prefix list is a mix of cable-era ranges — 98.146.0.0/16, 76.178.128.0/19, 66.27.0.0/19, 24.160.40.0/21 — that predate the merger, alongside IPv6 blocks from several different Charter and Time Warner allocations (2600:5c00::/36, 2603:90b9::/32, 2605:e000:1b00::/40). Charter has consolidated the branding but never renumbered the underlying networks, so the acquisition history is still legible in the routing table.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS7843 | Charter Communications Inc | 3,057 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 39 prefixes · 165K addresses IPv6 6 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 45 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10838- Registry name
- OCEANIC-INTERNET-RR
- Registrant
- Charter Communications Inc
- Abuse contact
- abuse@charter.net
- Registered
- 1997-12-09
- Last changed
- 2018-11-26
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 98% valid · 52 valid, 0 with no ROA 1 RPKI-invalid
- ROAs
- 59 authorising AS10838
- ASPA
- no ASPA record
- IRR
- 83% registered · 44 of 53 announcements
- Route objects
- 59 naming AS10838
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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 1,784 prefixes, as published 2026-10-19. 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