[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 18 18:12:17 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 19 Jul, 2014

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

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

BGP routing table entries examined:                              503174
    Prefixes after maximum aggregation:                          195916
    Deaggregation factor:                                          2.57
    Unique aggregates announced to Internet:                     248234
Total ASes present in the Internet Routing Table:                 47325
    Prefixes per ASN:                                             10.63
Origin-only ASes present in the Internet Routing Table:           35997
Origin ASes announcing only one prefix:                           16366
Transit ASes present in the Internet Routing Table:                6142
Transit-only ASes present in the Internet Routing Table:            177
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:              1792
    Unregistered ASNs in the Routing Table:                         465
Number of 32-bit ASNs allocated by the RIRs:                       7045
Number of 32-bit ASNs visible in the Routing Table:                5186
Prefixes from 32-bit ASNs in the Routing Table:                   18527
Number of bogon 32-bit ASNs visible in the Routing Table:           358
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            383
Number of addresses announced to Internet:                   2708501988
    Equivalent to 161 /8s, 112 /16s and 117 /24s
    Percentage of available address space announced:               73.2
    Percentage of allocated address space announced:               73.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.7
Total number of prefixes smaller than registry allocations:      172960

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

Prefixes being announced by APNIC Region ASes:                   121509
    Total APNIC prefixes after maximum aggregation:               35733
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          124851
    Unique aggregates announced from the APNIC address blocks:    51946
APNIC Region origin ASes present in the Internet Routing Table:    4960
    APNIC Prefixes per ASN:                                       25.17
APNIC Region origin ASes announcing only one prefix:               1222
APNIC Region transit ASes present in the Internet Routing Table:    880
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         23
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1011
Number of APNIC addresses announced to Internet:              734619008
    Equivalent to 43 /8s, 201 /16s and 101 /24s
    Percentage of available APNIC address space announced:         85.9

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:                    169118
    Total ARIN prefixes after maximum aggregation:                84233
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           170923
    Unique aggregates announced from the ARIN address blocks:     79771
ARIN Region origin ASes present in the Internet Routing Table:    16337
    ARIN Prefixes per ASN:                                        10.46
ARIN Region origin ASes announcing only one prefix:                6115
ARIN Region transit ASes present in the Internet Routing Table:    1690
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          40
Number of ARIN region 32-bit ASNs visible in the Routing Table:     142
Number of ARIN addresses announced to Internet:              1090072608
    Equivalent to 64 /8s, 249 /16s and 48 /24s
    Percentage of available ARIN address space announced:          57.7

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:                    124194
    Total RIPE prefixes after maximum aggregation:                62926
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           129002
    Unique aggregates announced from the RIPE address blocks:     81741
RIPE Region origin ASes present in the Internet Routing Table:    17754
    RIPE Prefixes per ASN:                                         7.27
RIPE Region origin ASes announcing only one prefix:                8271
RIPE Region transit ASes present in the Internet Routing Table:    2881
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:    2728
Number of RIPE addresses announced to Internet:               658555524
    Equivalent to 39 /8s, 64 /16s and 194 /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:                   58677
    Total LACNIC prefixes after maximum aggregation:              10276
    LACNIC Deaggregation factor:                                   5.71
Prefixes being announced from the LACNIC address blocks:          66246
    Unique aggregates announced from the LACNIC address blocks:   29968
LACNIC Region origin ASes present in the Internet Routing Table:   2161
    LACNIC Prefixes per ASN:                                      30.66
LACNIC Region origin ASes announcing only one prefix:               547
LACNIC Region transit ASes present in the Internet Routing Table:   448
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1261
Number of LACNIC addresses announced to Internet:             167012288
    Equivalent to 9 /8s, 244 /16s and 103 /24s
    Percentage of available LACNIC address space announced:        99.5

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:                  11043
    Total AfriNIC prefixes after maximum aggregation:              2710
    AfriNIC Deaggregation factor:                                  4.07
Prefixes being announced from the AfriNIC address blocks:         11769
    Unique aggregates announced from the AfriNIC address blocks:   4476
AfriNIC Region origin ASes present in the Internet Routing Table:   724
    AfriNIC Prefixes per ASN:                                     16.26
AfriNIC Region origin ASes announcing only one prefix:              211
AfriNIC Region transit ASes present in the Internet Routing Table:  158
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   44
Number of AfriNIC addresses announced to Internet:             57803264
    Equivalent to 3 /8s, 114 /16s and 2 /24s
    Percentage of available AfriNIC address space announced:       57.4

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     2963      11592         925   Korea Telecom
17974     2796        899          72   PT Telekomunikasi Indonesia
 7545     2324        320         115   TPG Telecom Limited
 4755     1858        392         197   TATA Communications formerly 
 9829     1654       1306          31   National Internet Backbone
 9583     1308        103         532   Sify Limited
 9498     1292        317          93   BHARTI Airtel Ltd.
 7552     1224       1098          14   Viettel Corporation
 4808     1204       2149         370   CNCGROUP IP network China169 
24560     1151        399         191   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     2948       3688          53   BellSouth.net Inc.
22773     2719       2940         141   Cox Communications Inc.
 7029     2448       1905         302   Windstream Communications Inc
18566     2047        379         178   MegaPath Corporation
20115     1735       1724         565   Charter Communications
 4323     1628       1072         410   tw telecom holdings, inc.
30036     1460        310         623   Mediacom Communications Corp
  701     1438      11187         726   MCI Communications Services, 
 6983     1387        817         312   ITC^Deltacom
22561     1306        406         233   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     1718        265         276   TELLCOM ILETISIM HIZMETLERI A
20940     1430        555        1054   Akamai International B.V.
 8402     1300        544          15   OJSC "Vimpelcom"
31148     1042         45          20   Freenet Ltd.
13188     1031        100          28   TOV "Bank-Inform"
 8551      996        371          42   Bezeq International-Ltd
 6849      818        356          26   JSC "Ukrtelecom"
 6830      775       2335         431   Liberty Global Operations B.V
12479      743        796          59   France Telecom Espana SA
 9198      588        346          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     3822       2031         102   NET Serviços de Comunicação S
10620     2917        472         222   Telmex Colombia S.A.
18881     2090       1036          22   Global Village Telecom
 7303     1769       1180         231   Telecom Argentina S.A.
 8151     1436       2967         405   Uninet S.A. de C.V.
 6503     1118        434          61   Axtel, S.A.B. de C.V.
 6147     1089        373          28   Telefonica del Peru S.A.A.
 7738      977       1882          41   Telemar Norte Leste S.A.
27947      895        130          51   Telconet S.A
26615      860       2325          35   Tim Celular S.A.

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
24863      914        280          26   Link Egypt (Link.NET)
 6713      673        744          37   Office National des Postes et
 8452      592        958          13   TE-AS
36992      311        784          26   ETISALAT MISR
24835      306        144           9   Vodafone Data
 3741      250        921         213   Internet Solutions
29571      233         22          17   Cote d'Ivoire Telecom
37054      226         19           6   Data Telecom Service
15706      187         32           6   Sudatel (Sudan Telecom Co. Lt
12258      176         27          67   MWEB CONNECT (PROPRIETARY) LI

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     3822       2031         102   NET Serviços de Comunicação S
 4766     2963      11592         925   Korea Telecom
 6389     2948       3688          53   BellSouth.net Inc.
10620     2917        472         222   Telmex Colombia S.A.
17974     2796        899          72   PT Telekomunikasi Indonesia
22773     2719       2940         141   Cox Communications Inc.
 7029     2448       1905         302   Windstream Communications Inc
 7545     2324        320         115   TPG Telecom Limited
18881     2090       1036          22   Global Village Telecom
18566     2047        379         178   MegaPath Corporation

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      2948        2895      BellSouth.net Inc.
17974      2796        2724      PT Telekomunikasi Indonesia
10620      2917        2695      Telmex Colombia S.A.
22773      2719        2578      Cox Communications Inc.
 7545      2324        2209      TPG Telecom Limited
 7029      2448        2146      Windstream Communications Inc
18881      2090        2068      Global Village Telecom
 4766      2963        2038      Korea Telecom
18566      2047        1869      MegaPath Corporation
 4755      1858        1661      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
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I

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

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

Network            Origin AS  Description
23.226.240.0/20      40430     colo4jax, LLC
23.226.240.0/21      40430     colo4jax, LLC
23.226.248.0/21      40430     colo4jax, LLC
24.231.96.0/24       21548     MTO Telecom Inc.
27.100.7.0/24        56096     >>UNKNOWN<<
41.76.48.0/21        36969     Malawi Telecommunications Lim
41.78.120.0/23       22351     INTELSAT GLOBAL SERVICE CORPO
41.78.180.0/23       37265     Neural Telecommunications Afr
41.78.236.0/24       37290     >>UNKNOWN<<
41.78.237.0/24       37290     >>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       /9:13      /10:30      /11:91      /12:259     
/13:498     /14:980     /15:1702    /16:13019   /17:7007    /18:11693   
/19:24692   /20:35045   /21:37458   /22:54020   /23:47374   /24:267061  
/25:835     /26:932     /27:394     /28:13      /29:18      /30:10      
/31:1       /32:13      

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
22773     1962          2719      Cox Communications Inc.
 6389     1693          2948      BellSouth.net Inc.
30036     1304          1460      Mediacom Communications Corp
 7029     1274          2448      Windstream Communications Inc
11492     1179          1231      CABLE ONE, INC.
 6983     1095          1387      ITC^Deltacom
34984     1046          1718      TELLCOM ILETISIM HIZMETLERI A
10620     1024          2917      Telmex Colombia S.A.
22561     1003          1306      CenturyTel Internet Holdings,

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

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

   1:1228      2:655       3:3         4:15        5:1038      6:19     
   8:713      12:1856     13:4        14:1100     15:15       16:2      
  17:40       18:21       20:37       23:897      24:1753     27:1772   
  31:1505     32:41       33:2        34:5        36:139      37:1818   
  38:951      39:7        40:207      41:2647     42:256      43:124    
  44:13       45:42       46:2084     47:24       49:725      50:813    
  52:12       54:46       55:5        56:3        57:29       58:1220   
  59:616      60:414      61:1581     62:1246     63:1857     64:4366   
  65:2291     66:4154     67:2045     68:1046     69:3341     70:888    
  71:440      72:2005     74:2627     75:322      76:411      77:1657   
  78:807      79:712      80:1308     81:1206     82:768      83:771    
  84:773      85:1318     86:426      87:1139     88:465      89:1783   
  90:138      91:5719     92:729      93:1753     94:2016     95:1607   
  96:497      97:360      98:1091     99:49      100:65      101:946    
 103:5306    104:61      105:34      106:181     107:573     108:592    
 109:2022    110:997     111:1346    112:672     113:866     114:797    
 115:1132    116:1084    117:973     118:1496    119:1407    120:406    
 121:846     122:2118    123:1428    124:1417    125:1543    128:589    
 129:338     130:359     131:670     132:416     133:162     134:320    
 135:74      136:299     137:287     138:365     139:166     140:225    
 141:388     142:568     143:437     144:504     145:107     146:651    
 147:488     148:895     149:387     150:347     151:712     152:450    
 153:220     154:312     155:516     156:355     157:340     158:250    
 159:913     160:333     161:566     162:1609    163:318     164:689    
 165:621     166:291     167:642     168:1063    169:124     170:1361   
 171:183     172:65      173:1503    174:715     175:606     176:1400   
 177:3266    178:2070    179:788     180:1775    181:1306    182:1602   
 183:529     184:723     185:1884    186:2909    187:1612    188:2144   
 189:1483    190:7677    191:660     192:7414    193:5507    194:4043   
 195:3531    196:1419    197:674     198:5109    199:5535    200:6333   
 201:2694    202:9147    203:8969    204:4591    205:2628    206:2969   
 207:2961    208:3956    209:3740    210:3128    211:1722    212:2313   
 213:2113    214:878     215:87      216:5550    217:1687    218:608    
 219:330     220:1284    221:628     222:357     223:593    

End of report


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