Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 23 18:12:26 UTC 2014


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

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

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

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 24 May, 2014

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

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

BGP routing table entries examined:                              495622
    Prefixes after maximum aggregation:                          194181
    Deaggregation factor:                                          2.55
    Unique aggregates announced to Internet:                     244818
Total ASes present in the Internet Routing Table:                 46929
    Prefixes per ASN:                                             10.56
Origin-only ASes present in the Internet Routing Table:           35829
Origin ASes announcing only one prefix:                           16362
Transit ASes present in the Internet Routing Table:                6102
Transit-only ASes present in the Internet Routing Table:            171
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1728
    Unregistered ASNs in the Routing Table:                         457
Number of 32-bit ASNs allocated by the RIRs:                       6690
Number of 32-bit ASNs visible in the Routing Table:                4998
Prefixes from 32-bit ASNs in the Routing Table:                   16799
Number of bogon 32-bit ASNs visible in the Routing Table:           144
Special use prefixes present in the Routing Table:                   15
Prefixes being announced from unallocated address space:            434
Number of addresses announced to Internet:                   2688488320
    Equivalent to 160 /8s, 63 /16s and 19 /24s
    Percentage of available address space announced:               72.6
    Percentage of allocated address space announced:               72.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.4
Total number of prefixes smaller than registry allocations:      171648

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

Prefixes being announced by APNIC Region ASes:                   117984
    Total APNIC prefixes after maximum aggregation:               35204
    APNIC Deaggregation factor:                                    3.35
Prefixes being announced from the APNIC address blocks:          121068
    Unique aggregates announced from the APNIC address blocks:    50794
APNIC Region origin ASes present in the Internet Routing Table:    4939
    APNIC Prefixes per ASN:                                       24.51
APNIC Region origin ASes announcing only one prefix:               1229
APNIC Region transit ASes present in the Internet Routing Table:    868
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         24
Number of APNIC region 32-bit ASNs visible in the Routing Table:    961
Number of APNIC addresses announced to Internet:              733553792
    Equivalent to 43 /8s, 185 /16s and 36 /24s
    Percentage of available APNIC address space announced:         85.7

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-63999, 131072-133631
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 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, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    168311
    Total ARIN prefixes after maximum aggregation:                83445
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           169868
    Unique aggregates announced from the ARIN address blocks:     79415
ARIN Region origin ASes present in the Internet Routing Table:    16291
    ARIN Prefixes per ASN:                                        10.43
ARIN Region origin ASes announcing only one prefix:                6133
ARIN Region transit ASes present in the Internet Routing Table:    1679
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:     107
Number of ARIN addresses announced to Internet:              1075771136
    Equivalent to 64 /8s, 30 /16s and 247 /24s
    Percentage of available ARIN address space announced:          56.9

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
                       53248-55295, 62464-63487, 393216-394239
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  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, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

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

Prefixes being announced by RIPE Region ASes:                    123686
    Total RIPE prefixes after maximum aggregation:                62765
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           128237
    Unique aggregates announced from the RIPE address blocks:     80797
RIPE Region origin ASes present in the Internet Routing Table:    17689
    RIPE Prefixes per ASN:                                         7.25
RIPE Region origin ASes announcing only one prefix:                8260
RIPE Region transit ASes present in the Internet Routing Table:    2879
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2711
Number of RIPE addresses announced to Internet:               658457216
    Equivalent to 39 /8s, 63 /16s and 66 /24s
    Percentage of available RIPE address space announced:          95.7

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, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-202239
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        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, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                   56758
    Total LACNIC prefixes after maximum aggregation:              10069
    LACNIC Deaggregation factor:                                   5.64
Prefixes being announced from the LACNIC address blocks:          63361
    Unique aggregates announced from the LACNIC address blocks:   29037
LACNIC Region origin ASes present in the Internet Routing Table:   2095
    LACNIC Prefixes per ASN:                                      30.24
LACNIC Region origin ASes announcing only one prefix:               535
LACNIC Region transit ASes present in the Internet Routing Table:   439
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1187
Number of LACNIC addresses announced to Internet:             162006144
    Equivalent to 9 /8s, 168 /16s and 4 /24s
    Percentage of available LACNIC address space announced:        96.6

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                  11965
    Total AfriNIC prefixes after maximum aggregation:              2661
    AfriNIC Deaggregation factor:                                  4.50
Prefixes being announced from the AfriNIC address blocks:         12654
    Unique aggregates announced from the AfriNIC address blocks:   4385
AfriNIC Region origin ASes present in the Internet Routing Table:   721
    AfriNIC Prefixes per ASN:                                     17.55
AfriNIC Region origin ASes announcing only one prefix:              205
AfriNIC Region transit ASes present in the Internet Routing Table:  154
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   32
Number of AfriNIC addresses announced to Internet:             55998976
    Equivalent to 3 /8s, 86 /16s and 122 /24s
    Percentage of available AfriNIC address space announced:       55.6

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2941      11591         922   Korea Telecom
17974     2793        899          72   PT Telekomunikasi Indonesia
 7545     2229        320         117   TPG Telecom Limited
 4755     1854        396         199   TATA Communications formerly 
 9829     1642       1307          32   National Internet Backbone
 9583     1302        101         534   Sify Limited
 9498     1259        314          85   BHARTI Airtel Ltd.
 7552     1226       1082          13   Viettel Corporation
 4808     1204       2146         359   CNCGROUP IP network China169 
24560     1131        393         184   Bharti Airtel Ltd., Telemedia

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     2959       3688          53   BellSouth.net Inc.
22773     2428       2937         133   Cox Communications Inc.
 1785     2063        690         151   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
20115     1706       1690         566   Charter Communications
 4323     1629       1073         413   tw telecom holdings, inc.
  701     1471      11190         742   MCI Communications Services, 
30036     1417        310         546   Mediacom Communications Corp
 6983     1325        800         306   ITC^Deltacom
22561     1307        402         232   CenturyTel Internet Holdings,

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
34984     1704        264         275   TELLCOM ILETISIM HIZMETLERI A
 8402     1481        544          16   OJSC "Vimpelcom"
20940     1354        523        1016   Akamai International B.V.
13188     1049        100          28   TOV "Bank-Inform"
 8551     1034        370          40   Bezeq International-Ltd
31148     1018         45          19   Freenet Ltd.
 6849      822        357          27   JSC "Ukrtelecom"
 6830      763       2333         424   Liberty Global Operations B.V
12479      711        795          57   France Telecom Espana SA
 9198      574        344          28   JSC Kazakhtelecom

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
28573     3787       1996         100   NET Serviços de Comunicação S
10620     2864        463         200   Telmex Colombia S.A.
18881     2007        972          21   Global Village Telecom
 7303     1755       1174         229   Telecom Argentina S.A.
 8151     1407       2945         409   Uninet S.A. de C.V.
 6503     1097        434          60   Axtel, S.A.B. de C.V.
 7738      978       1882          40   Telemar Norte Leste S.A.
27947      876        114          50   Telconet S.A
26615      859       2324          34   Tim Celular S.A.
 3816      824        339         136   COLOMBIA TELECOMUNICACIONES S

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
36998     1114        240           6   Sudanese Mobile Telephone (ZA
24863      961        280          26   Link Egypt (Link.NET)
 6713      615        727          32   Office National des Postes et
 8452      582        958          13   TE-AS
24835      304        144           9   Vodafone Data
36992      300        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
37054      241         19           6   Data Telecom Service
29571      226         22          16   Cote d'Ivoire Telecom
29975      192        668          21   Vodacom

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

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
28573     3787       1996         100   NET Serviços de Comunicação S
 6389     2959       3688          53   BellSouth.net Inc.
 4766     2941      11591         922   Korea Telecom
10620     2864        463         200   Telmex Colombia S.A.
17974     2793        899          72   PT Telekomunikasi Indonesia
22773     2428       2937         133   Cox Communications Inc.
 7545     2229        320         117   TPG Telecom Limited
 1785     2063        690         151   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
18881     2007        972          21   Global Village Telecom

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

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

  ASN   No of nets  Net Savings Description
 6389      2959        2906      BellSouth.net Inc.
17974      2793        2721      PT Telekomunikasi Indonesia
10620      2864        2664      Telmex Colombia S.A.
22773      2428        2295      Cox Communications Inc.
 7545      2229        2112      TPG Telecom Limited
 4766      2941        2019      Korea Telecom
18881      2007        1986      Global Village Telecom
 1785      2063        1912      PaeTec Communications, Inc.
18566      2047        1869      MegaPath Corporation
 4755      1854        1655      TATA Communications formerly 

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

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

Bad AS  Designation  Network              Transit AS  Description
65456   PRIVATE      5.109.32.0/19        23456       32bit Transition AS
65456   PRIVATE      5.109.96.0/19        23456       32bit Transition AS
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
22511   UNALLOCATED  8.28.225.0/24         2828       XO Communications
22511   UNALLOCATED  8.36.68.0/24          2828       XO Communications

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.64.111.0/24      25019     Autonomus System Number for S
100.88.0.0/16         6697     Republican Unitary Telecommun
100.89.0.0/16         6697     Republican Unitary Telecommun
100.90.0.0/16         6697     Republican Unitary Telecommun
100.91.0.0/16         6697     Republican Unitary Telecommun
100.92.0.0/16         6697     Republican Unitary Telecommun
100.93.0.0/16         6697     Republican Unitary Telecommun
100.94.0.0/16         6697     Republican Unitary Telecommun
100.95.0.0/16         6697     Republican Unitary Telecommun
100.96.0.0/14         6697     Republican Unitary Telecommun

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

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

Network            Origin AS  Description
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.14.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        37004     >>UNKNOWN<<

Complete listing at http://thyme.rand.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        /8:16       /9:12      /10:30      /11:91      /12:258     
/13:488     /14:970     /15:1703    /16:12973   /17:6894    /18:11718   
/19:24475   /20:34440   /21:36984   /22:52781   /23:46370   /24:263330  
/25:768     /26:918     /27:384     /28:12      /29:5       /30:0       
/31:0       /32:2       

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
 6389     1692          2959      BellSouth.net Inc.
22773     1679          2428      Cox Communications Inc.
30036     1254          1417      Mediacom Communications Corp
11492     1175          1215      CABLE ONE, INC.
 8402     1174          1481      OJSC "Vimpelcom"
 1785     1129          2063      PaeTec Communications, Inc.
36998     1080          1114      Sudanese Mobile Telephone (ZA
 6983     1042          1325      ITC^Deltacom
34984     1034          1704      TELLCOM ILETISIM HIZMETLERI A

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

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

   1:1129      2:669       3:3         4:15        5:1013      6:19     
   8:744      12:1849     13:3        14:998      15:13       16:2      
  17:32       18:21       20:36       23:892      24:1735     25:1      
  27:1753     31:1474     32:43       33:2        34:5        36:136    
  37:1890     38:960      39:7        40:202      41:3192     42:251    
  44:11       46:2085     47:19       49:704      50:937      52:12     
  54:47       55:4        57:29       58:1230     59:603      60:407    
  61:1545     62:1216     63:1960     64:4373     65:2289     66:4213   
  67:2071     68:1038     69:3339     70:856      71:442      72:2013   
  74:2652     75:324      76:421      77:1583     78:870      79:712    
  80:1291     81:1157     82:746      83:758      84:744      85:1299   
  86:463      87:1168     88:485      89:1826     90:140      91:5696   
  92:699      93:1751     94:2021     95:1512     96:535      97:364    
  98:1080     99:48      100:56      101:809     103:4936    105:538    
 106:170     107:602     108:574     109:2029    110:970     111:1298   
 112:654     113:844     114:862     115:1127    116:1090    117:943    
 118:1402    119:1350    120:387     121:818     122:2033    123:1317   
 124:1424    125:1399    128:578     129:340     130:346     131:662    
 132:400     133:162     134:317     135:74      136:254     137:296    
 138:357     139:166     140:213     141:373     142:571     143:439    
 144:505     145:104     146:609     147:475     148:904     149:357    
 150:167     151:796     152:424     153:218     154:295     155:484    
 156:340     157:335     158:242     159:900     160:328     161:553    
 162:1464    163:234     164:690     165:605     166:281     167:619    
 168:1050    169:124     170:1422    171:187     172:26      173:1691   
 174:709     175:603     176:1409    177:3010    178:1999    179:657    
 180:1730    181:1141    182:1565    183:522     184:705     185:1675   
 186:2795    187:1573    188:1929    189:1447    190:7439    191:318    
 192:7289    193:5495    194:4036    195:3496    196:1410    197:641    
 198:5058    199:5541    200:6241    201:2573    202:9014    203:8892   
 204:4598    205:2671    206:2932    207:2971    208:3978    209:3722   
 210:3100    211:1680    212:2296    213:2081    214:879     215:86     
 216:5522    217:1685    218:581     219:320     220:1289    221:599    
 222:353     223:589    

End of report


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