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[apops] Weekly Routing Table Report



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 and the RIPE Routing WG.

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

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

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

Routing Table Report   04:00 +10GMT Sat 23 Mar, 2019

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

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

BGP routing table entries examined:                              741807
    Prefixes after maximum aggregation (per Origin AS):          284756
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      357759
Total ASes present in the Internet Routing Table:                 63716
    Prefixes per ASN:                                             11.64
Origin-only ASes present in the Internet Routing Table:           54839
Origin ASes announcing only one prefix:                           23689
Transit ASes present in the Internet Routing Table:                8877
Transit-only ASes present in the Internet Routing Table:            268
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      34
    Max AS path prepend of ASN (206156)                              26
Prefixes from unregistered ASNs in the Routing Table:                29
    Number of instances of unregistered ASNs:                        32
Number of 32-bit ASNs allocated by the RIRs:                      26276
Number of 32-bit ASNs visible in the Routing Table:               21442
Prefixes from 32-bit ASNs in the Routing Table:                   93820
Number of bogon 32-bit ASNs visible in the Routing Table:            27
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            256
Number of addresses announced to Internet:                   2844501632
    Equivalent to 169 /8s, 139 /16s and 166 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:               76.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.2
Total number of prefixes smaller than registry allocations:      247814

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

Prefixes being announced by APNIC Region ASes:                   200650
    Total APNIC prefixes after maximum aggregation:               57867
    APNIC Deaggregation factor:                                    3.47
Prefixes being announced from the APNIC address blocks:          197536
    Unique aggregates announced from the APNIC address blocks:    82366
APNIC Region origin ASes present in the Internet Routing Table:    9623
    APNIC Prefixes per ASN:                                       20.53
APNIC Region origin ASes announcing only one prefix:               2705
APNIC Region transit ASes present in the Internet Routing Table:   1420
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4588
Number of APNIC addresses announced to Internet:              769694080
    Equivalent to 45 /8s, 224 /16s and 153 /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, 131072-139577
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:                    219300
    Total ARIN prefixes after maximum aggregation:               103653
    ARIN Deaggregation factor:                                     2.12
Prefixes being announced from the ARIN address blocks:           218381
    Unique aggregates announced from the ARIN address blocks:    104721
ARIN Region origin ASes present in the Internet Routing Table:    18428
    ARIN Prefixes per ASN:                                        11.85
ARIN Region origin ASes announcing only one prefix:                6874
ARIN Region transit ASes present in the Internet Routing Table:    1889
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2634
Number of ARIN addresses announced to Internet:              1079597952
    Equivalent to 64 /8s, 89 /16s and 91 /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, 393216-399260
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:                    204638
    Total RIPE prefixes after maximum aggregation:                97408
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           200883
    Unique aggregates announced from the RIPE address blocks:    119278
RIPE Region origin ASes present in the Internet Routing Table:    25909
    RIPE Prefixes per ASN:                                         7.75
RIPE Region origin ASes announcing only one prefix:               11494
RIPE Region transit ASes present in the Internet Routing Table:    3682
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    7936
Number of RIPE addresses announced to Internet:               717817472
    Equivalent to 42 /8s, 201 /16s and 6 /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
                       196608-210331
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:                   96555
    Total LACNIC prefixes after maximum aggregation:              21520
    LACNIC Deaggregation factor:                                   4.49
Prefixes being announced from the LACNIC address blocks:          97920
    Unique aggregates announced from the LACNIC address blocks:   41890
LACNIC Region origin ASes present in the Internet Routing Table:   8208
    LACNIC Prefixes per ASN:                                      11.93
LACNIC Region origin ASes announcing only one prefix:              2184
LACNIC Region transit ASes present in the Internet Routing Table:  1531
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        28
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5749
Number of LACNIC addresses announced to Internet:             173485056
    Equivalent to 10 /8s, 87 /16s and 44 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  20634
    Total AfriNIC prefixes after maximum aggregation:              4286
    AfriNIC Deaggregation factor:                                  4.81
Prefixes being announced from the AfriNIC address blocks:         26831
    Unique aggregates announced from the AfriNIC address blocks:   9269
AfriNIC Region origin ASes present in the Internet Routing Table:  1261
    AfriNIC Prefixes per ASN:                                     21.28
AfriNIC Region origin ASes announcing only one prefix:              432
AfriNIC Region transit ASes present in the Internet Routing Table:  246
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  535
Number of AfriNIC addresses announced to Internet:            103641856
    Equivalent to 6 /8s, 45 /16s and 115 /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
  7545         4680        542     543  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4658       4192      74  ERX-CERNET-BKB China Education and Rese
  7552         3096       1265      52  VIETEL-AS-AP Viettel Group, VN
 45899         3037       1737     111  VNPT-AS-VN VNPT Corp, VN
  9829         2738       1494     553  BSNL-NIB National Internet Backbone, IN
  4766         2615      11120     762  KIXS-AS-KR Korea Telecom, KR
  9808         2434       8699      27  CMNET-GD Guangdong Mobile Communication
  9394         2209       4906      31  CTTNET China TieTong Telecommunications
  4755         2137        422     176  TATACOMM-AS TATA Communications formerl
  9498         2026        426     167  BBIL-AP BHARTI Airtel Ltd., IN

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         3601       1325      94  SHAW - Shaw Communications Inc., CA
 11492         3552        230     615  CABLEONE - CABLE ONE, INC., US
 22773         3382       2976     163  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2600       5900    1070  AMAZON-02 - Amazon.com, Inc., US
 16625         2262       1288    1770  AKAMAI-AS - Akamai Technologies, Inc., 
 20115         2152       2747     535  CHARTER-20115 - Charter Communications,
 30036         2131        352     138  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 18566         2112        405     108  MEGAPATH5-US - MegaPath Corporation, US
  5650         2094       3074    1462  FRONTIER-FRTR - Frontier Communications
   209         2080       5104     583  CENTURYLINK-US-LEGACY-QWEST - CenturyLi

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         5427       1628     139  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3269        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2643        540    1916  AKAMAI-ASN1, US
 12389         2228       2221     638  ROSTELECOM-AS, RU
 34984         2057        340     538  TELLCOM-AS, TR
  9121         1679       1693      19  TTNET, TR
 13188         1605        100      47  TRIOLAN, UA
  9009         1399        145     761  M247, GB
  8402         1256        545      15  CORBINA-AS OJSC "Vimpelcom", RU

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         5638       3335     590  Uninet S.A. de C.V., MX
 10620         3507        537     365  Telmex Colombia S.A., CO
 11830         2704        384      34  Instituto Costarricense de Electricidad
  7303         1447        985     245  Telecom Argentina S.A., AR
  6503         1418        433      54  Axtel, S.A.B. de C.V., MX
 28573         1327       2247     178  CLARO S.A., BR
  6147         1258        377      29  Telefonica del Peru S.A.A., PE
  3816         1022        505     113  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          951        144      66  Alestra, S. de R.L. de C.V., MX
 13999          951        521     246  Mega Cable, S.A. de C.V., MX

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         1200        393      21  LINKdotNET-AS, EG
 37611          895        107       9  Afrihost, ZA
 24835          843        636      22  RAYA-AS, EG
 36903          827        416     126  MT-MPLS, MA
 36992          826       1531      71  ETISALAT-MISR, EG
  8452          668       1731      19  TE-AS TE-AS, EG
 29571          485         70      12  ORANGE-COTE-IVOIRE, CI
 37492          470        470      57  ORANGE-, TN
 37342          420         32       1  MOVITEL, MZ
 23889          395        231      15  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
  8151         5638       3335     590  Uninet S.A. de C.V., MX
 12479         5427       1628     139  UNI2-AS, ES
  7545         4680        542     543  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4658       4192      74  ERX-CERNET-BKB China Education and Rese
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  6327         3601       1325      94  SHAW - Shaw Communications Inc., CA
 11492         3552        230     615  CABLEONE - CABLE ONE, INC., US
 10620         3507        537     365  Telmex Colombia S.A., CO
 22773         3382       2976     163  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3269        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne

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

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

  ASN   No of nets  Net Savings  Description
 12479       5427         5288   UNI2-AS, ES
  4538       4658         4584   ERX-CERNET-BKB China Education and Research Net
  7545       4680         4137   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3601         3507   SHAW - Shaw Communications Inc., CA
  8551       3269         3224   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773       3382         3219   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 10620       3507         3142   Telmex Colombia S.A., CO
  7552       3096         3044   VIETEL-AS-AP Viettel Group, VN
 11492       3552         2937   CABLEONE - CABLE ONE, INC., US

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
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
1358592   UNALLOCATED  103.134.14.0/23      63956       COLO-AS-AP Colocation Australi
1358592   UNALLOCATED  103.134.14.0/24      63956       COLO-AS-AP Colocation Australi
1358592   UNALLOCATED  103.134.15.0/24      63956       COLO-AS-AP Colocation Australi
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
 224413   UNALLOCATED  131.221.136.0/24    264413       Conecta Telecom Ltda, BR
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US

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

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

Network            Origin AS  Description
2.58.224.0/24       201843    IBERSONTEL, ES
2.58.225.0/24       201843    IBERSONTEL, ES
2.58.226.0/24       201843    IBERSONTEL, ES
2.58.227.0/24       201843    IBERSONTEL, ES
27.100.7.0/24        56096    UNKNOWN
27.126.156.0/22      55827    UNKNOWN
27.126.156.0/23      55827    UNKNOWN
27.126.158.0/23      55827    UNKNOWN
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/22       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        /8:12       /9:10      /10:36      /11:100     /12:291     
/13:566     /14:1136    /15:1910    /16:13364   /17:7963    /18:13927   
/19:25677   /20:39958   /21:46164   /22:92856   /23:75692   /24:421180  
/25:965     /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN   No of nets  Total ann.  Description
 12479     4339          5427    UNI2-AS, ES
  6327     3376          3601    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2779          3552    CABLEONE - CABLE ONE, INC., US
  8551     2723          3269    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2620          3382    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2049          2704    Instituto Costarricense de Electricidad y Telec
 18566     2007          2112    MEGAPATH5-US - MegaPath Corporation, US
 30036     1878          2131    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1761          2094    FRONTIER-FRTR - Frontier Communications of Amer

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

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

   1:1606      2:865       4:22        5:2944      6:45        7:1      
   8:1255      9:1        11:3        12:1849     13:322      14:1952   
  15:36       16:4        17:240      18:59       20:49       23:2621   
  24:2544     25:2        27:2547     31:2076     32:97       35:36     
  36:845      37:3044     38:1700     39:296      40:120      41:3133   
  42:752      43:2022     44:147      45:7017     46:3251     47:252    
  49:1361     50:1100     51:322      52:1027     54:289      55:2      
  56:9        57:43       58:1694     59:1076     60:502      61:2073   
  62:2007     63:1812     64:4999     65:2216     66:4838     67:2706   
  68:1169     69:3531     70:1331     71:602      72:2452     74:2761   
  75:513      76:550      77:1723     78:1761     79:2323     80:1805   
  81:1505     82:1129     83:888      84:1104     85:2286     86:534    
  87:1563     88:1035     89:2485     90:222      91:6590     92:1351   
  93:2444     94:2590     95:3207     96:921      97:344      98:949    
  99:206     100:89      101:1158    102:480     103:20679   104:3560   
 105:247     106:847     107:1771    108:688     109:3729    110:1635   
 111:1885    112:1478    113:1390    114:1135    115:1762    116:1715   
 117:1892    118:2185    119:1644    120:1020    121:1034    122:2329   
 123:1652    124:1470    125:1971    128:1258    129:831     130:534    
 131:1653    132:722     133:219     134:1051    135:242     136:574    
 137:714     138:2047    139:844     140:578     141:859     142:854    
 143:1060    144:846     145:509     146:1268    147:805     148:1704   
 149:820     150:781     151:1011    152:1034    153:322     154:2814   
 155:899     156:1678    157:939     158:643     159:1915    160:1531   
 161:932     162:2691    163:799     164:1136    165:1567    166:452    
 167:1398    168:3286    169:868     170:4068    171:568     172:1166   
 173:2196    174:1014    175:909     176:2333    177:4209    178:2538   
 179:1456    180:2160    181:2397    182:2690    183:1075    184:1191   
 185:14883   186:3666    187:2442    188:2893    189:1984    190:8321   
 191:1512    192:10027   193:6647    194:5421    195:4072    196:3009   
 197:1613    198:5861    199:5986    200:7226    201:5119    202:10379  
 203:10229   204:4548    205:2994    206:3216    207:3260    208:3964   
 209:4247    210:3930    211:2000    212:3057    213:2904    214:1082   
 215:54      216:5918    217:2225    218:876     219:579     220:1876   
 221:967     222:984     223:1401   

End of report