AT&T.



Region / Language






  • CLEC Home
  • CLEC Handbook Home
  • Billing
    • Billing Adjustments and Claims
    • Billing Account Numbers
    • Enhanced Bill Info User Guide
    • Slamming
    • Collocation Billing Adjustments/Claims
    • ExClaim
    • FUSF Waiver Certification
    • EDI User Guides - All Regions
    • Tax Forms
  • Calling Areas
  • Billing Forms and References
  • Products & Services
    • 911 and E911 Services
      • E911 System Overview Presentation
    • Current Promotions
    • Directory
      • Yellow Page Headings
      • Directory Assistance-Operator Services
      • 21 State Directory Listings Overview: CLEC and VOIP Providers
    • Commingling
    • Collocation
      • Closed Remote Terminal Report
      • Collocation Guidelines At Remote Terminals
      • Collocation Space Available Bulletin Board
      • Common Files
      • Appendices - 21 State Files
        • Regional/State Specific CA NV
        • Regional-State Specific MO-OK-KS-AR-TX
        • Regional-State Specific IL-IN-OH-MI-WI
      • Technical Documents
      • Physical Collocation - Select State
      • Virtual Collocation
      • Full Eligible Structures (12 State)
      • 21 State Collocation - Appendix I - Collocation Intervals
    • Conformance Testing for SS7
    • LIDB - Line Information DataBase
    • UNE
      • Customized Routing
      • Special Access to UNE
      • Routine Network Modifications Process
      • ECF
      • High Voltage Protection Process
      • DSL
      • Sub Loops
      • UNE to Special Access
    • Local Number Portability
    • Resale
      • CompleteLink 2
      • Resale Traffic Studies
      • AT&T Dedicated Ethernet Service
      • 21 State Exchange Packages
  • OSS
    • MCPSC Trouble Ticket
    • Misc
    • OSS Documentation
  • Ordering
    • 12 State Data Validation File List
    • 12-State Data Validation Files Intro
    • ASR Examples
    • AT&T Facilty Check Tool
    • Unbundled Dedicated Transport Availability - Wire Center Tiers
    • Non-impaired DS1 and DS3 Wire Centers
    • 12-State Data Validation Files User Guide
    • Local Service Provider Authorization
    • Batch Hot Cut
    • LSR Entries - Use of APPTIME & ALBR
    • CSI Process
    • Correct Address Records
    • Change Intercept on Disconnected Number
    • Additional Ordering Information
    • End-User Return
    • Blocking
    • Blocking-Product Tables
    • Bridging and Hubbing Guides
    • Centrex
    • Resale Products with Multiple Contracts
    • Special Handling Scenarios
    • Connecting Facility Assignment - CFA Expedite Process
    • Customer Not Ready Process
    • Design Layout Record
    • UNE-Indefinite Address
    • Due Date Matrix Instructions
    • Due Date Process
      • Expedites
    • Fax Numbers ASR (22 state)/Pre-Order (13-state Manual Forms)
    • FCC NRO Numbering Resource Optimization Process
    • Hunting
    • CO Freeze
    • Manual Ordering Guidelines
    • Notifications
    • Number Referral Services
    • Outside Moves and Conversions with Change LSR Requests
    • Old Circuit IDs
    • Partial Moves
    • 21 State Projects
    • Regrades of Service
    • Responsible Organization for 800 Numbers
    • Response Identifier
    • AT&T 21-State USOC Search Tools
    • Telephone Numbers in Suspend or Vacation Status
    • Variable Term Agreements
    • Migrations
    • Annoyance Call Handling Process
    • SPA to UNE Conversions
    • CEASE ICA FILE
  • Pre Ordering
    • Manual Processes & Job Aids
  • Forms & Exhibits
    • dbas
    • 911
    • ASR
      • CLEC Start-Up Steps for Access Services out of Tariff/Guidebook
      • ASR Screen Matrix
    • Administrative Forms
    • LSC Manual Forms
      • Manual Forms
      • Core Product Templates
      • OBF - REQTYP C
    • Manual Pre Ordering Forms
    • OS/DA
    • Traffic Study Request
    • Network
      • Network Reference Documents
    • AT&T Billing Documents and Forms
    • BFR Application
    • CSI/PREORDER/ASR MANUAL FORMS(EMAIL)
  • Maintenance & Repair
    • Maintenance Disposition and Cause Codes
    • Trouble Repair - No Access Dispatch Charges
    • Mechanized Loop Testing (VER Codes)
    • Maintenance/Repair for Line Splitting
    • Premise Wiring Policy
    • Delivery of Service to a Different MPOE
    • Voice Trouble on UNE-L and xDSL Loops
    • Common Cause Troubles
    • CLEC DS0 Services
    • Escalation Matrix and Contact
    • Maint. of Svc Rate Changes – Jan 2012
    • Vendor Meets - Other than MW
  • User Guides & Tech Pubs
    • Address Information (Order/Pre-Order)
    • LSOR/LSPOR Accessible Letters
    • CLEC Education
      • Downloads
    • Billing
      • 21-State Billing Documents
    • CAAWS/CLEC Provisioning Web
    • EBTA GUI-Web User Guide
    • Mechanized Loop Testing
    • Ordering
      • ASR OZZ Code Guide
      • Local Service Request Exchange (LEX)
      • Carrier Coding Guides (Multi-Regional)
      • LSOR 6+ (12 State) Local Service Ordering Requirements
        • LSOR (12 State) Documentation
      • ASR - Local Interconnection Ordering Guides
      • Education
    • Tandem Homing Plans
    • Pre-Ordering
      • Digital Loop Makeup/Loop Qual External User Guide - 12 State
      • LSPOR (12 State) Pre-Order
        • LSPOR (12 State) Documentation
        • Enhanced Verigate User Guide
    • SS7 (AT&T) CCS&SS7 Interconnection
    • Test Lines for Intra-Switch testing
  • Misc Files

  • Accessible Letter Search
  • Standard Due Dates
  • USOC Search
  • Product/LSR Examples Search Tool
  • Customer Service Contacts
  • Legal Notices
  • Glossary
  • Links
  • Contact Us
  • Handbook Job Aid

CLEC Handbook

Collocation


Select any of the links below.

  • Closed Remote Terminal Report
  • Collocation Guidelines At Remote Terminals
  • Collocation Space Available Bulletin Board
  • Common Files
  • Appendices - 21 State Files
  • Technical Documents
  • Physical Collocation - Select State
  • Virtual Collocation
  • Full Eligible Structures (12 State)
  • 21 State Collocation - Appendix I - Collocation Intervals
  • Terms of Use |
  • Privacy Policy |
  • Contact Us

AT&T. Proud Sponsor of the U.S. Olympic Team. © 2026 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other AT&T marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies.
36 USC 220506
Telcordia® and Common Language� are registered trademarks and iconectiv, LLC, CLCI, CLEI, CLFI, CLLI, USOC, FID, NC, NCI and NC/NCI, are trademarks of Telcordia Technologies, Inc. The Common Language codes identified herein are the proprietary information of Telcordia Technologies, Inc. dba as iconectiv, LLC ("iconectiv, LLC") and are licensed to AT&T Services Inc. The Common Language codes are provided herein solely for the purpose of this CLEC Online site and may not be reproduced, stored, or used for any other purpose without the express, written consent of iconectiv, LLC.