Weekly Routing Table Report

From: Routing Analysis Role Account (no email)
Date: Fri Nov 07 2008 - 13:11:43 EST

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    This is an automated weekly mailing describing the state of the Internet
    Routing Table as seen from APNIC's router in Japan.
    Daily listings are sent to

    For historical data, please see http://thyme.apnic.net.

    If you have any comments please contact Philip Smith <>.

    Routing Table Report 04:00 +10GMT Sat 08 Nov, 2008

    Report Website: http://thyme.apnic.net
    Detailed Analysis: http://thyme.apnic.net/current/

    Analysis Summary
    ----------------

    BGP routing table entries examined: 272998
        Prefixes after maximum aggregation: 131801
        Deaggregation factor: 2.07
        Unique aggregates announced to Internet: 133598
    Total ASes present in the Internet Routing Table: 29730
        Prefixes per ASN: 9.18
    Origin-only ASes present in the Internet Routing Table: 25883
    Origin ASes announcing only one prefix: 12609
    Transit ASes present in the Internet Routing Table: 3847
    Transit-only ASes present in the Internet Routing Table: 84
    Average AS path length visible in the Internet Routing Table: 3.6
        Max AS path length visible: 18
        Max AS path prepend of ASN ( 3816) 15
    Prefixes from unregistered ASNs in the Routing Table: 574
        Unregistered ASNs in the Routing Table: 202
    Number of 32-bit ASNs allocated by the RIRs: 62
    Prefixes from 32-bit ASNs in the Routing Table: 9
    Special use prefixes present in the Routing Table: 0
    Prefixes being announced from unallocated address space: 202
    Number of addresses announced to Internet: 1920631360
        Equivalent to 114 /8s, 122 /16s and 130 /24s
        Percentage of available address space announced: 51.8
        Percentage of allocated address space announced: 62.6
        Percentage of available address space allocated: 82.8
        Percentage of address space in use by end-sites: 74.2
    Total number of prefixes smaller than registry allocations: 134144

    APNIC Region Analysis Summary
    -----------------------------

    Prefixes being announced by APNIC Region ASes: 62514
        Total APNIC prefixes after maximum aggregation: 23424
        APNIC Deaggregation factor: 2.67
    Prefixes being announced from the APNIC address blocks: 59420
        Unique aggregates announced from the APNIC address blocks: 26950
    APNIC Region origin ASes present in the Internet Routing Table: 3452
        APNIC Prefixes per ASN: 17.21
    APNIC Region origin ASes announcing only one prefix: 932
    APNIC Region transit ASes present in the Internet Routing Table: 535
    Average APNIC Region AS path length visible: 3.5
        Max APNIC Region AS path length visible: 17
    Number of APNIC addresses announced to Internet: 380616864
        Equivalent to 22 /8s, 175 /16s and 192 /24s
        Percentage of available APNIC address space announced: 81.0

    APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
    (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
    APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 112/8, 113/8, 114/8,
                           115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8,
                           122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8,
                           210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
                          

    ARIN Region Analysis Summary
    ----------------------------

    Prefixes being announced by ARIN Region ASes: 123687
        Total ARIN prefixes after maximum aggregation: 64998
        ARIN Deaggregation factor: 1.90
    Prefixes being announced from the ARIN address blocks: 93211
        Unique aggregates announced from the ARIN address blocks: 35626
    ARIN Region origin ASes present in the Internet Routing Table: 12572
        ARIN Prefixes per ASN: 7.41
    ARIN Region origin ASes announcing only one prefix: 4862
    ARIN Region transit ASes present in the Internet Routing Table: 1198
    Average ARIN Region AS path length visible: 3.3
        Max ARIN Region AS path length visible: 16
    Number of ARIN addresses announced to Internet: 368498336
        Equivalent to 21 /8s, 246 /16s and 214 /24s
        Percentage of available ARIN address space announced: 75.7

    ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
    (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
                           3354-4607, 4865-5119, 5632-6655, 6912-7466
                           7723-8191, 10240-12287, 13312-15359, 16384-17407
                           18432-20479, 21504-23551, 25600-26591,
                           26624-27647, 29696-30719, 31744-33791
                           35840-36863, 39936-40959, 46080-47103
    ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
                            69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
                            76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
                           199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
                           216/8,

    RIPE Region Analysis Summary
    ----------------------------

    Prefixes being announced by RIPE Region ASes: 59832
        Total RIPE prefixes after maximum aggregation: 36005
        RIPE Deaggregation factor: 1.66
    Prefixes being announced from the RIPE address blocks: 55490
        Unique aggregates announced from the RIPE address blocks: 37170
    RIPE Region origin ASes present in the Internet Routing Table: 12142
        RIPE Prefixes per ASN: 4.57
    RIPE Region origin ASes announcing only one prefix: 6395
    RIPE Region transit ASes present in the Internet Routing Table: 1842
    Average RIPE Region AS path length visible: 4.0
        Max RIPE Region AS path length visible: 18
    Number of RIPE addresses announced to Internet: 377756960
        Equivalent to 22 /8s, 132 /16s and 29 /24s
        Percentage of available RIPE address space announced: 86.6

    RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
    (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
                           6656-6911, 8192-9215, 12288-13311, 15360-16383
                           20480-21503, 24576-25599, 28672-29695
                           30720-31743, 33792-35839, 38912-39935
                           40960-45055, 47104-49151
    RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
                            83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
                            90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
                           194/8, 195/8, 212/8, 213/8, 217/8,

    LACNIC Region Analysis Summary
    ------------------------------

    Prefixes being announced by LACNIC Region ASes: 22261
        Total LACNIC prefixes after maximum aggregation: 5619
        LACNIC Deaggregation factor: 3.96
    Prefixes being announced from the LACNIC address blocks: 20244
        Unique aggregates announced from the LACNIC address blocks: 11339
    LACNIC Region origin ASes present in the Internet Routing Table: 1028
        LACNIC Prefixes per ASN: 19.69
    LACNIC Region origin ASes announcing only one prefix: 338
    LACNIC Region transit ASes present in the Internet Routing Table: 169
    Average LACNIC Region AS path length visible: 4.0
        Max LACNIC Region AS path length visible: 18
    Number of LACNIC addresses announced to Internet: 57736192
        Equivalent to 3 /8s, 112 /16s and 252 /24s
        Percentage of available LACNIC address space announced: 57.4

    LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
    LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,

    AfriNIC Region Analysis Summary
    -------------------------------

    Prefixes being announced by AfriNIC Region ASes: 4151
        Total AfriNIC prefixes after maximum aggregation: 1323
        AfriNIC Deaggregation factor: 3.14
    Prefixes being announced from the AfriNIC address blocks: 4434
        Unique aggregates announced from the AfriNIC address blocks: 2165
    AfriNIC Region origin ASes present in the Internet Routing Table: 266
        AfriNIC Prefixes per ASN: 16.67
    AfriNIC Region origin ASes announcing only one prefix: 82
    AfriNIC Region transit ASes present in the Internet Routing Table: 52
    Average AfriNIC Region AS path length visible: 4.0
        Max AfriNIC Region AS path length visible: 16
    Number of AfriNIC addresses announced to Internet: 12919552
        Equivalent to 0 /8s, 197 /16s and 35 /24s
        Percentage of available AfriNIC address space announced: 25.7

    AfriNIC AS Blocks 36864-37887 & ERX transfers
    AfriNIC Address Blocks 41/8, 196/8, 197/8,

    APNIC Region per AS prefix count summary
    ----------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
    17488 1409 99 102 Hathway IP Over Cable Interne
     4755 1310 516 177 TATA Communications formerly
     9583 1110 87 476 Sify Limited
     4766 886 6409 364 Korea Telecom (KIX)
     4134 878 13772 361 CHINANET-BACKBONE
    23577 815 35 700 Korea Telecom (ATM-MPLS)
    18101 783 161 67 Reliance Infocom Ltd Internet
     4780 727 357 63 Digital United Inc.
     9498 694 295 54 BHARTI BT INTERNET LTD.
     4808 630 1172 143 CNCGROUP IP network: China169

    Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC

    ARIN Region per AS prefix count summary
    ---------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     6389 4356 3417 340 bellsouth.net, inc.
      209 3042 4035 623 Qwest
     6298 2079 326 690 Cox Communicatons
     1785 1693 717 154 PaeTec Communications, Inc.
    20115 1660 1452 725 Charter Communications
     6478 1650 363 193 AT&T Worldnet Services
     2386 1587 700 898 AT&T Data Communications Serv
     4323 1575 1084 377 Time Warner Telecom
     7018 1402 5869 970 AT&T WorldNet Services
    11492 1210 149 16 Cable One

    Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN

    RIPE Region per AS prefix count summary
    ---------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     3292 429 1766 381 TDC Tele Danmark
    30890 348 94 188 SC Kappa Invexim SRL
     3301 332 1429 303 TeliaNet Sweden
     3215 331 2788 99 France Telecom Transpac
     8866 331 111 23 Bulgarian Telecommunication C
     3320 326 7063 275 Deutsche Telekom AG
     8452 325 188 11 TEDATA
     5462 300 794 27 Telewest Broadband
    25233 289 44 24 Awalnet
     8551 287 270 37 Bezeq International

    Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE

    LACNIC Region per AS prefix count summary
    -----------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     8151 1400 2848 218 UniNet S.A. de C.V.
    11830 670 299 9 Instituto Costarricense de El
    22047 565 270 14 VTR PUNTO NET S.A.
    10620 545 126 59 TVCABLE BOGOTA
     7303 494 243 69 Telecom Argentina Stet-France
    16814 426 27 10 NSS, S.A.
     6471 420 85 49 ENTEL CHILE S.A.
    11172 405 118 72 Servicios Alestra S.A de C.V
    28573 341 468 23 NET Servicos de Comunicao S.A
    14117 330 23 9 Telefonica del Sur S.A.

    Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC

    AfriNIC Region per AS prefix count summary
    ------------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
    24863 562 73 45 LINKdotNET AS number
     3741 270 856 226 The Internet Solution
    20858 256 34 3 EgyNet
     2018 238 215 140 Tertiary Education Network
     6713 142 135 11 Itissalat Al-MAGHRIB
    33783 141 10 15 EEPAD TISP TELECOM & INTERNET
     5536 120 8 17 Internet Egypt Network
     5713 114 555 63 Telkom SA Ltd
    29571 113 13 9 Ci Telecom Autonomous system
    33776 109 6 3 Starcomms Nigeria Limited

    Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC

    Global Per AS prefix count summary
    ----------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     6389 4356 3417 340 bellsouth.net, inc.
      209 3042 4035 623 Qwest
     6298 2079 326 690 Cox Communicatons
     1785 1693 717 154 PaeTec Communications, Inc.
    20115 1660 1452 725 Charter Communications
     6478 1650 363 193 AT&T Worldnet Services
     2386 1587 700 898 AT&T Data Communications Serv
     4323 1575 1084 377 Time Warner Telecom
    17488 1409 99 102 Hathway IP Over Cable Interne
     7018 1402 5869 970 AT&T WorldNet Services

    Complete listing at http://thyme.apnic.net/current/data-ASnet

    Global Per AS Maximum Aggr summary
    ----------------------------------

      ASN No of nets Net Savings Description
      209 3042 2419 Qwest
     1785 1693 1539 PaeTec Communications, Inc.
     6478 1650 1457 AT&T Worldnet Services
     6298 2079 1389 Cox Communicatons
    17488 1409 1307 Hathway IP Over Cable Interne
     4323 1575 1198 Time Warner Telecom
    11492 1210 1194 Cable One
     8151 1400 1182 UniNet S.A. de C.V.
     4755 1310 1133 TATA Communications formerly
    18566 1059 1049 Covad Communications

    Complete listing at http://thyme.apnic.net/current/data-CIDRnet

    List of Unregistered Origin ASNs (Global)
    -----------------------------------------

    Bad AS Designation Network Transit AS Description
    16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
    15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
    32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
    13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
    32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
    26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
    26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
    26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
    32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
    25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic

    Complete listing at http://thyme.apnic.net/current/data-badAS

    Advertised Unallocated Addresses
    --------------------------------

    Network Origin AS Description
    24.75.116.0/22 10796 ServiceCo LLC - Road Runner
    24.75.160.0/19 7843 Adelphia Corp.
    24.142.40.0/21 7018 AT&T WorldNet Services
    24.142.160.0/19 7018 AT&T WorldNet Services
    24.246.0.0/17 7018 AT&T WorldNet Services
    24.246.128.0/18 7018 AT&T WorldNet Services
    41.191.124.0/22 2905 Verizon South Africa
    62.61.220.0/24 24974 Tachyon Europe BV - Wireless
    62.61.221.0/24 24974 Tachyon Europe BV - Wireless
    63.140.213.0/24 22555 Universal Talkware Corporatio

    Complete listing at http://thyme.apnic.net/current/data-add-IANA

    Number of prefixes announced per prefix length (Global)
    -------------------------------------------------------

     /1:0 /2:0 /3:0 /4:0 /5:0 /6:0
     /7:0 /8:18 /9:9 /10:18 /11:46 /12:149
    /13:298 /14:538 /15:1067 /16:10137 /17:4427 /18:7668
    /19:16493 /20:19336 /21:19024 /22:24005 /23:24859 /24:142112
    /25:840 /26:1017 /27:832 /28:88 /29:9 /30:1
    /31:0 /32:7

    Advertised prefixes smaller than registry allocations
    -----------------------------------------------------

      ASN No of nets Total ann. Description
     6389 2851 4356 bellsouth.net, inc.
     6298 2053 2079 Cox Communicatons
      209 1756 3042 Qwest
     2386 1269 1587 AT&T Data Communications Serv
    17488 1198 1409 Hathway IP Over Cable Interne
    11492 1187 1210 Cable One
     1785 1156 1693 PaeTec Communications, Inc.
     6478 1105 1650 AT&T Worldnet Services
    18566 1040 1059 Covad Communications
     9583 977 1110 Sify Limited

    Complete listing at http://thyme.apnic.net/current/data/sXXas-nos

    Number of /24s announced per /8 block (Global)
    ----------------------------------------------

       4:12 8:154 12:2178 13:2 15:21 16:3
      17:5 20:35 24:1087 32:54 38:518 40:92
      41:775 43:1 44:2 47:13 52:3 55:3
      56:3 57:26 58:516 59:533 60:452 61:1032
      62:1139 63:2009 64:3277 65:2428 66:3501 67:1313
      68:808 69:2331 70:878 71:137 72:2065 73:7
      74:1276 75:167 76:290 77:878 78:517 79:282
      80:924 81:865 82:609 83:397 84:584 85:1025
      86:509 87:704 88:347 89:1353 90:25 91:1661
      92:288 93:963 94:326 95:34 96:86 97:128
      98:386 99:15 113:40 114:119 115:144 116:1005
     117:402 118:241 119:516 120:102 121:609 122:855
     123:444 124:861 125:1226 128:353 129:217 130:135
     131:407 132:72 133:9 134:186 135:31 136:224
     137:102 138:145 139:83 140:414 141:111 142:391
     143:298 144:302 145:52 146:373 147:140 148:605
     149:211 150:129 151:208 152:150 153:136 154:10
     155:274 156:174 157:302 158:168 159:282 160:273
     161:140 162:247 163:135 164:518 165:503 166:361
     167:341 168:630 169:155 170:454 171:40 172:10
     173:129 174:1 187:18 188:1 189:308 190:2373
     192:5825 193:4153 194:3291 195:2639 196:1018 198:3717
     199:3308 200:5551 201:1479 202:7672 203:8036 204:3927
     205:2189 206:2310 207:2772 208:3717 209:3459 210:2589
     211:1093 212:1537 213:1631 214:69 215:25 216:4355
     217:1252 218:351 219:421 220:1059 221:418 222:302

    End of report


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