Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 1 18:03:02 UTC 2018


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, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG.

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 02 Jun, 2018

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

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

BGP routing table entries examined:                              702696
    Prefixes after maximum aggregation (per Origin AS):          269990
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      337923
Total ASes present in the Internet Routing Table:                 60877
    Prefixes per ASN:                                             11.54
Origin-only ASes present in the Internet Routing Table:           52561
Origin ASes announcing only one prefix:                           22956
Transit ASes present in the Internet Routing Table:                8316
Transit-only ASes present in the Internet Routing Table:            278
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 30873)                              28
Prefixes from unregistered ASNs in the Routing Table:                50
    Number of instances of unregistered ASNs:                        50
Number of 32-bit ASNs allocated by the RIRs:                      22804
Number of 32-bit ASNs visible in the Routing Table:               18382
Prefixes from 32-bit ASNs in the Routing Table:                   76690
Number of bogon 32-bit ASNs visible in the Routing Table:            15
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:            261
Number of addresses announced to Internet:                   2860375619
    Equivalent to 170 /8s, 125 /16s and 222 /24s
    Percentage of available address space announced:               77.3
    Percentage of allocated address space announced:               77.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.9
Total number of prefixes smaller than registry allocations:      234878

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

Prefixes being announced by APNIC Region ASes:                   191697
    Total APNIC prefixes after maximum aggregation:               54440
    APNIC Deaggregation factor:                                    3.52
Prefixes being announced from the APNIC address blocks:          190523
    Unique aggregates announced from the APNIC address blocks:    78035
APNIC Region origin ASes present in the Internet Routing Table:    8841
    APNIC Prefixes per ASN:                                       21.55
APNIC Region origin ASes announcing only one prefix:               2475
APNIC Region transit ASes present in the Internet Routing Table:   1329
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3821
Number of APNIC addresses announced to Internet:              767462658
    Equivalent to 45 /8s, 190 /16s and 141 /24s
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, 64297-64395, 131072-137529
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:                    209013
    Total ARIN prefixes after maximum aggregation:                99347
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           209718
    Unique aggregates announced from the ARIN address blocks:     99231
ARIN Region origin ASes present in the Internet Routing Table:    18196
    ARIN Prefixes per ASN:                                        11.53
ARIN Region origin ASes announcing only one prefix:                6726
ARIN Region transit ASes present in the Internet Routing Table:    1805
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2354
Number of ARIN addresses announced to Internet:              1105775648
    Equivalent to 65 /8s, 232 /16s and 204 /24s
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, 64198-64296, 393216-397212
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:                    192114
    Total RIPE prefixes after maximum aggregation:                92247
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           188106
    Unique aggregates announced from the RIPE address blocks:    111657
RIPE Region origin ASes present in the Internet Routing Table:    25194
    RIPE Prefixes per ASN:                                         7.47
RIPE Region origin ASes announcing only one prefix:               11377
RIPE Region transit ASes present in the Internet Routing Table:    3516
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7048
Number of RIPE addresses announced to Internet:               715829632
    Equivalent to 42 /8s, 170 /16s and 177 /24s
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, 64396-64495
                       196608-207259
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:                   90965
    Total LACNIC prefixes after maximum aggregation:              19927
    LACNIC Deaggregation factor:                                   4.56
Prefixes being announced from the LACNIC address blocks:          92410
    Unique aggregates announced from the LACNIC address blocks:   41070
LACNIC Region origin ASes present in the Internet Routing Table:   7184
    LACNIC Prefixes per ASN:                                      12.86
LACNIC Region origin ASes announcing only one prefix:              1992
LACNIC Region transit ASes present in the Internet Routing Table:  1322
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        26
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4730
Number of LACNIC addresses announced to Internet:             172429728
    Equivalent to 10 /8s, 71 /16s and 17 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + 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:                  18855
    Total AfriNIC prefixes after maximum aggregation:              3984
    AfriNIC Deaggregation factor:                                  4.73
Prefixes being announced from the AfriNIC address blocks:         21678
    Unique aggregates announced from the AfriNIC address blocks:   7703
AfriNIC Region origin ASes present in the Internet Routing Table:  1154
    AfriNIC Prefixes per ASN:                                     18.79
AfriNIC Region origin ASes announcing only one prefix:              385
AfriNIC Region transit ASes present in the Internet Routing Table:  233
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  429
Number of AfriNIC addresses announced to Internet:             98440704
    Equivalent to 5 /8s, 222 /16s and 22 /24s
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         5424       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4409        419     435  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         2868       1154      79  VIETEL-AS-AP Viettel Group, VN
  4766         2846      11133     757  KIXS-AS-KR Korea Telecom, KR
  9829         2812       1498     543  BSNL-NIB National Internet Backbone, IN
  9394         2541       4923      26  CTTNET China TieTong Telecommunications
 45899         2495       1586     162  VNPT-AS-VN VNPT Corp, VN
 17974         2217        928      79  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2207       8699      26  CMNET-GD Guangdong Mobile Communication
  4755         2104        417     206  TATACOMM-AS TATA Communications formerl

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
  6327         3431       1324      85  SHAW - Shaw Communications Inc., CA
 22773         3298       2968     147  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 11492         2201        245     409  CABLEONE - CABLE ONE, INC., US
 18566         2171        405     109  MEGAPATH5-US - MegaPath Corporation, US
 16509         2134       4705     669  AMAZON-02 - Amazon.com, Inc., US
 20115         2106       2536     466  CHARTER-NET-HKY-NC - Charter Communicat
   209         1985       5070     605  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1985        342     175  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16625         1850        916    1325  AKAMAI-AS - Akamai Technologies, Inc., 
  7018         1722      20200    1262  ATT-INTERNET4 - AT&T Services, Inc., US

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
 12479         4230       1518     540  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         2842        377      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2618        679    1922  AKAMAI-ASN1, US
 34984         2031        335     494  TELLCOM-AS, TR
 12389         2012       1877     707  ROSTELECOM-AS, RU
  9121         1889       1692      19  TTNET, TR
 13188         1609        100      43  TRIOLAN, UA
  8402         1267        544      14  CORBINA-AS OJSC "Vimpelcom", RU
  6849         1101        355      21  UKRTELNET, UA

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
  8151         4967       3309     582  Uninet S.A. de C.V., MX
 10620         3599        541     248  Telmex Colombia S.A., CO
 11830         2647        369      77  Instituto Costarricense de Electricidad
  6503         1640        443      60  Axtel, S.A.B. de C.V., MX
  7303         1516       1027     189  Telecom Argentina S.A., AR
 28573         1031       2253     173  CLARO S.A., BR
  3816         1008        505     130  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          993        377      31  Telefonica del Peru S.A.A., PE
 11172          927        126      85  Alestra, S. de R.L. de C.V., MX
 18881          911       1078      30  TELEFÔNICA BRASIL S.A, BR

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         1038        396      48  LINKdotNET-AS, EG
 37611          852        107       9  Afrihost, ZA
 36903          739        371     140  MT-MPLS, MA
 36992          711       1412      43  ETISALAT-MISR, EG
  8452          680       1730      18  TE-AS TE-AS, EG
 24835          634        786      17  RAYA-AS, EG
 37492          466        470      57  ORANGE-, TN
 29571          455         68      11  ORANGE-COTE-IVOIRE, CI
 37342          378         32       1  MOVITEL, MZ
 23889          363        103      14  MauritiusTelecom, MU

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         5424       4192      74  ERX-CERNET-BKB China Education and Rese
  8151         4967       3309     582  Uninet S.A. de C.V., MX
  7545         4409        419     435  TPG-INTERNET-AP TPG Telecom Limited, AU
 12479         4230       1518     540  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3599        541     248  Telmex Colombia S.A., CO
  6327         3431       1324      85  SHAW - Shaw Communications Inc., CA
 22773         3298       2968     147  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  7552         2868       1154      79  VIETEL-AS-AP Viettel Group, VN
  4766         2846      11133     757  KIXS-AS-KR Korea Telecom, KR

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

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

  ASN   No of nets  Net Savings  Description
  8151       4967         4385   Uninet S.A. de C.V., MX
  7545       4409         3974   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
 12479       4230         3690   UNI2-AS, ES
 10620       3599         3351   Telmex Colombia S.A., CO
  6327       3431         3346   SHAW - Shaw Communications Inc., CA
 22773       3298         3151   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       2842         2799   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       2868         2789   VIETEL-AS-AP Viettel Group, VN
 11830       2647         2570   Instituto Costarricense de Electricidad y Telec

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

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

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  64111   UNALLOCATED  98.159.5.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64111   UNALLOCATED  98.159.7.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64121   UNALLOCATED  98.159.9.0/24        19555       KMI-NETWORK - Kinder Morgan, I
  64121   UNALLOCATED  98.159.12.0/24       19555       KMI-NETWORK - Kinder Morgan, I
  64140   UNALLOCATED  98.159.14.0/24       64121       UNKNOWN

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

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

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati
198.18.1.19/32        7497     CSTNET-AS-AP Computer Network Information Cente

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
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/24       37500    -Reserved AS-, ZZ
41.76.141.0/24       37500    -Reserved AS-, ZZ
41.76.142.0/24       37500    -Reserved AS-, ZZ
41.76.143.0/24       37500    -Reserved AS-, ZZ

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        /8:14       /9:11      /10:37      /11:100     /12:290     
/13:565     /14:1094    /15:1903    /16:13379   /17:7909    /18:13677   
/19:25154   /20:39315   /21:45543   /22:87266   /23:70831   /24:393396  
/25:828     /26:627     /27:628     /28:36      /29:20      /30:17      
/31:4       /32:52      

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

   ASN   No of nets  Total ann.  Description
  6327     3218          3431    SHAW - Shaw Communications Inc., CA
 12479     3023          4230    UNI2-AS, ES
 39891     2946          3778    ALJAWWALSTC-AS, SA
 22773     2553          3298    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551     2304          2842    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 18566     2064          2171    MEGAPATH5-US - MegaPath Corporation, US
 11830     1995          2647    Instituto Costarricense de Electricidad y Telec
 11492     1942          2201    CABLEONE - CABLE ONE, INC., US
 30036     1736          1985    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 10620     1612          3599    Telmex Colombia S.A., CO

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

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

   1:1586      2:854       4:19        5:2828      6:66        7:1      
   8:1123      9:1        12:1860     13:189      14:1747     15:28     
  16:3        17:208      18:56       20:49       21:8        23:2639   
  24:2225     25:2        27:2359     31:1995     32:92       35:27     
  36:508      37:2744     38:1468     39:264      40:121      41:3226   
  42:594      43:1938     44:118      45:4645     46:3038     47:199    
  49:1324     50:1058     51:314      52:1050     54:369      55:3      
  56:12       57:41       58:1615     59:1005     60:434      61:2166   
  62:1844     63:1797     64:5032     65:2220     66:4693     67:2435   
  68:1161     69:3203     70:1143     71:566      72:2103     74:2733   
  75:414      76:453      77:1522     78:1712     79:1828     80:1508   
  81:1400     82:1094     83:775      84:1095     85:2052     86:575    
  87:1321     88:928      89:2354     90:213      91:6354     92:1203   
  93:2369     94:2401     95:2828     96:731      97:356      98:947    
  99:133     100:83      101:1276    102:66      103:17829   104:3619   
 105:240     106:622     107:1894    108:700     109:3463    110:1636   
 111:1778    112:1264    113:1255    114:1120    115:1641    116:1652   
 117:1730    118:2151    119:1662    120:978     121:1051    122:2444   
 123:1793    124:1429    125:1900    128:1034    129:647     130:458    
 131:1590    132:665     133:196     134:1025    135:226     136:480    
 137:561     138:1976    139:602     140:403     141:712     142:821    
 143:1002    144:799     145:464     146:1194    147:734     148:1636   
 149:740     150:727     151:1059    152:783     153:312     154:1096   
 155:763     156:994     157:796     158:655     159:1738    160:968    
 161:776     162:2586    163:571     164:1057    165:1472    166:458    
 167:1414    168:3068    169:802     170:3722    171:437     172:1072   
 173:2007    174:910     175:776     176:1993    177:3969    178:2503   
 179:1232    180:2223    181:2237    182:2367    183:1180    184:1022   
 185:13540   186:3631    187:2374    188:2849    189:2079    190:8129   
 191:1422    192:9836    193:5960    194:4810    195:3983    196:2588   
 197:1530    198:5527    199:5938    200:7392    201:5032    202:10474  
 203:10204   204:4572    205:2889    206:3108    207:3195    208:4005   
 209:3959    210:4044    211:2106    212:3048    213:2745    214:972    
 215:61      216:5966    217:2132    218:909     219:627     220:1772   
 221:988     222:1026    223:1273   

End of report


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