Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 14 18:12:04 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,
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 15 Nov, 2014

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

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

BGP routing table entries examined:                              523387
    Prefixes after maximum aggregation:                          200080
    Deaggregation factor:                                          2.62
    Unique aggregates announced to Internet:                     254079
Total ASes present in the Internet Routing Table:                 48571
    Prefixes per ASN:                                             10.78
Origin-only ASes present in the Internet Routing Table:           36287
Origin ASes announcing only one prefix:                           16326
Transit ASes present in the Internet Routing Table:                6207
Transit-only ASes present in the Internet Routing Table:            172
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      78
    Max AS path prepend of ASN ( 55644)                              71
Prefixes from unregistered ASNs in the Routing Table:              1609
    Unregistered ASNs in the Routing Table:                         432
Number of 32-bit ASNs allocated by the RIRs:                       7908
Number of 32-bit ASNs visible in the Routing Table:                6077
Prefixes from 32-bit ASNs in the Routing Table:                   21732
Number of bogon 32-bit ASNs visible in the Routing Table:             2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            385
Number of addresses announced to Internet:                   2713710468
    Equivalent to 161 /8s, 191 /16s and 239 /24s
    Percentage of available address space announced:               73.3
    Percentage of allocated address space announced:               73.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.9
Total number of prefixes smaller than registry allocations:      176898

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

Prefixes being announced by APNIC Region ASes:                   133068
    Total APNIC prefixes after maximum aggregation:               37013
    APNIC Deaggregation factor:                                    3.60
Prefixes being announced from the APNIC address blocks:          137428
    Unique aggregates announced from the APNIC address blocks:    53664
APNIC Region origin ASes present in the Internet Routing Table:    4988
    APNIC Prefixes per ASN:                                       27.55
APNIC Region origin ASes announcing only one prefix:               1204
APNIC Region transit ASes present in the Internet Routing Table:    864
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         78
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1169
Number of APNIC addresses announced to Internet:              737090368
    Equivalent to 43 /8s, 239 /16s and 27 /24s
    Percentage of available APNIC address space announced:         86.1

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
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:                    171939
    Total ARIN prefixes after maximum aggregation:                85566
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           173830
    Unique aggregates announced from the ARIN address blocks:     81757
ARIN Region origin ASes present in the Internet Routing Table:    16398
    ARIN Prefixes per ASN:                                        10.60
ARIN Region origin ASes announcing only one prefix:                6088
ARIN Region transit ASes present in the Internet Routing Table:    1705
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     257
Number of ARIN addresses announced to Internet:              1053686464
    Equivalent to 62 /8s, 205 /16s and 250 /24s
    Percentage of available ARIN address space announced:          55.7

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
                       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:                    125891
    Total RIPE prefixes after maximum aggregation:                63703
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           131484
    Unique aggregates announced from the RIPE address blocks:     82809
RIPE Region origin ASes present in the Internet Routing Table:    17803
    RIPE Prefixes per ASN:                                         7.39
RIPE Region origin ASes announcing only one prefix:                8184
RIPE Region transit ASes present in the Internet Routing Table:    2931
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3196
Number of RIPE addresses announced to Internet:               691635332
    Equivalent to 41 /8s, 57 /16s and 132 /24s
    Percentage of available RIPE address space announced:         100.5

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:                   58329
    Total LACNIC prefixes after maximum aggregation:              10882
    LACNIC Deaggregation factor:                                   5.36
Prefixes being announced from the LACNIC address blocks:          67079
    Unique aggregates announced from the LACNIC address blocks:   30727
LACNIC Region origin ASes present in the Internet Routing Table:   2370
    LACNIC Prefixes per ASN:                                      28.30
LACNIC Region origin ASes announcing only one prefix:               643
LACNIC Region transit ASes present in the Internet Routing Table:   472
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1391
Number of LACNIC addresses announced to Internet:             167846400
    Equivalent to 10 /8s, 1 /16s and 34 /24s
    Percentage of available LACNIC address space announced:       100.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + 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:                  12329
    Total AfriNIC prefixes after maximum aggregation:              2872
    AfriNIC Deaggregation factor:                                  4.29
Prefixes being announced from the AfriNIC address blocks:         13181
    Unique aggregates announced from the AfriNIC address blocks:   4778
AfriNIC Region origin ASes present in the Internet Routing Table:   733
    AfriNIC Prefixes per ASN:                                     17.98
AfriNIC Region origin ASes announcing only one prefix:              207
AfriNIC Region transit ASes present in the Internet Routing Table:  152
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   64
Number of AfriNIC addresses announced to Internet:             60012544
    Equivalent to 3 /8s, 147 /16s and 184 /24s
    Percentage of available AfriNIC address space announced:       59.6

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
 4538     5620       4190          71   China Education and Research 
 4766     2962      11585         932   Korea Telecom
17974     2841        903          77   PT Telekomunikasi Indonesia
 7545     2458        336         126   TPG Telecom Limited
 4755     1923        412         190   TATA Communications formerly 
 9829     1670       1322          37   National Internet Backbone
 4812     1522       2098         110   China Telecom (Group)
 9808     1487       6655          16   Guangdong Mobile Communicatio
 4808     1425       2213         427   CNCGROUP IP network China169 
 9583     1362        112         561   Sify Limited

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     2894       3688          51   BellSouth.net Inc.
22773     2838       2956         144   Cox Communications Inc.
18566     2045        379         184   MegaPath Corporation
20115     1821       1796         479   Charter Communications
 7029     1711       2180         363   Windstream Communications Inc
 4323     1640       1052         412   tw telecom holdings, inc.
 6983     1595        867         250   ITC^Deltacom
30036     1494        311         604   Mediacom Communications Corp
  701     1430      11266         710   MCI Communications Services, 
22561     1314        409         242   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     1839        296         355   TELLCOM ILETISIM HIZMETLERI A
20940     1502        582        1107   Akamai International B.V.
 8402     1343        544          15   OJSC "Vimpelcom"
31148     1045         45          21   Freenet Ltd.
13188     1018         99          38   TOV "Bank-Inform"
 8551      948        373          43   Bezeq International-Ltd
 6849      828        356          26   JSC "Ukrtelecom"
 9198      803        346          32   JSC Kazakhtelecom
 6830      795       2339         438   Liberty Global Operations B.V
12479      767        785          96   France Telecom Espana SA

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
10620     3034        492         244   Telmex Colombia S.A.
28573     2450       2256         111   NET Serviços de Comunicação S
 7303     1766       1171         241   Telecom Argentina S.A.
 8151     1475       3015         428   Uninet S.A. de C.V.
 6147     1368        374          30   Telefonica del Peru S.A.A.
 6503     1133        433          58   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
27947      916        130          52   Telconet S.A
26615      914       2325          35   Tim Celular S.A.
 3816      891        383         151   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
 8452     1399        958          13   TE-AS
24863      956        280          26   Link Egypt (Link.NET)
 6713      586        762          34   Office National des Postes et
36992      359        824          29   ETISALAT MISR
24835      308        144           9   Vodafone Data
37492      280        125          63   Orange Tunisie
 3741      249        920         212   Internet Solutions
29571      245         22          17   Cote d'Ivoire Telecom
37054      242         19           6   Data Telecom Service
37457      187        161           7   Telkom SA Ltd.

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
 4538     5620       4190          71   China Education and Research 
10620     3034        492         244   Telmex Colombia S.A.
 4766     2962      11585         932   Korea Telecom
 6389     2894       3688          51   BellSouth.net Inc.
17974     2841        903          77   PT Telekomunikasi Indonesia
22773     2838       2956         144   Cox Communications Inc.
 7545     2458        336         126   TPG Telecom Limited
28573     2450       2256         111   NET Serviços de Comunicação S
18566     2045        379         184   MegaPath Corporation
 4755     1923        412         190   TATA Communications formerly 

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      2894        2843      BellSouth.net Inc.
10620      3034        2790      Telmex Colombia S.A.
17974      2841        2764      PT Telekomunikasi Indonesia
22773      2838        2694      Cox Communications Inc.
28573      2450        2339      NET Serviços de Comunicação S
 7545      2458        2332      TPG Telecom Limited
 4766      2962        2030      Korea Telecom
18566      2045        1861      MegaPath Corporation
 4755      1923        1733      TATA Communications formerly 
 9829      1670        1633      National Internet Backbone

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

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

Bad AS  Designation  Network              Transit AS  Description
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
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
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.252.224.0/20      62502     Xnet Media LLC
23.252.224.0/21      62502     Xnet Media LLC
23.252.232.0/21      62502     Xnet Media LLC
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
37.16.88.0/23        57652     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         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      /10:31      /11:90      /12:262     
/13:500     /14:1010    /15:1721    /16:13041   /17:7247    /18:12079   
/19:25517   /20:36643   /21:37904   /22:55948   /23:48983   /24:279399  
/25:1127    /26:1094    /27:705     /28:15      /29:19      /30:11      
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
22773     2056          2838      Cox Communications Inc.
18566     2000          2045      MegaPath Corporation
 6389     1674          2894      BellSouth.net Inc.
30036     1340          1494      Mediacom Communications Corp
 6983     1279          1595      ITC^Deltacom
34984     1162          1839      TELLCOM ILETISIM HIZMETLERI A
11492     1161          1214      CABLE ONE, INC.
10620     1074          3034      Telmex Colombia S.A.
 8402     1008          1343      OJSC "Vimpelcom"
22561     1005          1314      CenturyTel Internet Holdings,

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

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

   1:1353      2:681       3:3         4:16        5:1180      6:22     
   8:769      12:1850     13:4        14:1192     15:17       16:2      
  17:42       18:21       20:51       23:961      24:1758     27:1816   
  31:1352     32:39       33:2        34:5        36:161      37:1823   
  38:1012     39:15       40:236      41:2984     42:283      43:633    
  44:20       45:81       46:2106     47:30       49:758      50:808    
  52:12       54:59       55:6        56:8        57:32       58:1203   
  59:720      60:442      61:1732     62:1310     63:1841     64:4425   
  65:2281     66:4171     67:2030     68:1087     69:3261     70:885    
  71:458      72:1989     74:2633     75:363      76:410      77:1621   
  78:916      79:779      80:1324     81:1286     82:811      83:665    
  84:718      85:1358     86:419      87:1170     88:504      89:1805   
  90:140      91:5869     92:801      93:1665     94:1930     95:1295   
  96:416      97:342      98:1071     99:48      100:67      101:754    
 103:6077    104:563     105:160     106:188     107:712     108:607    
 109:1982    110:1068    111:1435    112:741     113:917     114:805    
 115:1222    116:1244    117:1007    118:1603    119:1368    120:446    
 121:1023    122:2217    123:1697    124:1476    125:1601    128:656    
 129:389     130:380     131:950     132:427     133:164     134:320    
 135:82      136:326     137:307     138:387     139:199     140:228    
 141:422     142:599     143:452     144:504     145:111     146:688    
 147:561     148:1042    149:413     150:517     151:651     152:479    
 153:242     154:415     155:631     156:379     157:331     158:281    
 159:926     160:334     161:622     162:1826    163:371     164:648    
 165:670     166:309     167:693     168:1115    169:122     170:1430   
 171:215     172:60      173:1613    174:713     175:581     176:1525   
 177:3745    178:2108    179:796     180:1812    181:1585    182:1669   
 183:565     184:707     185:2333    186:2975    187:1655    188:2018   
 189:1503    190:7709    191:799     192:7785    193:5553    194:4050   
 195:3629    196:1653    197:817     198:5335    199:5485    200:6495   
 201:2887    202:9677    203:8991    204:4673    205:2671    206:3036   
 207:2956    208:3936    209:3817    210:3660    211:2036    212:2480   
 213:2184    214:843     215:86      216:5645    217:1713    218:716    
 219:550     220:1303    221:773     222:687     223:615    

End of report


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