[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 29 Mai 18:03:29 UTC 2020


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 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 30 May, 2020

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

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

BGP routing table entries examined:                              812240
    Prefixes after maximum aggregation (per Origin AS):          308990
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      395869
Total ASes present in the Internet Routing Table:                 68196
    Prefixes per ASN:                                             11.91
Origin-only ASes present in the Internet Routing Table:           58588
Origin ASes announcing only one prefix:                           24435
Transit ASes present in the Internet Routing Table:                9608
Transit-only ASes present in the Internet Routing Table:            318
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:              1123
    Number of instances of unregistered ASNs:                      1125
Number of 32-bit ASNs allocated by the RIRs:                      31801
Number of 32-bit ASNs visible in the Routing Table:               26265
Prefixes from 32-bit ASNs in the Routing Table:                  121170
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              0
Number of addresses announced to Internet:                   2841823488
    Equivalent to 169 /8s, 98 /16s and 201 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:                inf
    Percentage of available address space allocated:                0.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:      604309

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

Prefixes being announced by APNIC Region ASes:                   213773
    Total APNIC prefixes after maximum aggregation:               62542
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:               0
    Unique aggregates announced from the APNIC address blocks:        0
APNIC Region origin ASes present in the Internet Routing Table:   10585
    APNIC Prefixes per ASN:                                        0.00
APNIC Region origin ASes announcing only one prefix:               2956
APNIC Region transit ASes present in the Internet Routing Table:   1569
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5663
Number of APNIC addresses announced to Internet:                      0
    Equivalent to 0 /8s, 0 /16s and 0 /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, 131072-141625
APNIC Address Blocks  

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

Prefixes being announced by ARIN Region ASes:                    237172
    Total ARIN prefixes after maximum aggregation:               109382
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:                0
    Unique aggregates announced from the ARIN address blocks:         0
ARIN Region origin ASes present in the Internet Routing Table:    18520
    ARIN Prefixes per ASN:                                         0.00
ARIN Region origin ASes announcing only one prefix:                6784
ARIN Region transit ASes present in the Internet Routing Table:    1915
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3258
Number of ARIN addresses announced to Internet:                       0
    Equivalent to 0 /8s, 0 /16s and 0 /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   

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

Prefixes being announced by RIPE Region ASes:                    230850
    Total RIPE prefixes after maximum aggregation:               106822
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:                0
    Unique aggregates announced from the RIPE address blocks:         0
RIPE Region origin ASes present in the Internet Routing Table:    27115
    RIPE Prefixes per ASN:                                         0.00
RIPE Region origin ASes announcing only one prefix:               11735
RIPE Region transit ASes present in the Internet Routing Table:    3839
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          39
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9189
Number of RIPE addresses announced to Internet:                       0
    Equivalent to 0 /8s, 0 /16s and 0 /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
                       196608-213403
RIPE Address Blocks   

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

Prefixes being announced by LACNIC Region ASes:                  106533
    Total LACNIC prefixes after maximum aggregation:              24819
    LACNIC Deaggregation factor:                                   4.29
Prefixes being announced from the LACNIC address blocks:              0
    Unique aggregates announced from the LACNIC address blocks:       0
LACNIC Region origin ASes present in the Internet Routing Table:   9888
    LACNIC Prefixes per ASN:                                       0.00
LACNIC Region origin ASes announcing only one prefix:              2468
LACNIC Region transit ASes present in the Internet Routing Table:  1850
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7465
Number of LACNIC addresses announced to Internet:                     0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + ERX transfers
LACNIC Address Blocks 

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

Prefixes being announced by AfriNIC Region ASes:                  22788
    Total AfriNIC prefixes after maximum aggregation:              4699
    AfriNIC Deaggregation factor:                                  4.85
Prefixes being announced from the AfriNIC address blocks:             0
    Unique aggregates announced from the AfriNIC address blocks:      0
AfriNIC Region origin ASes present in the Internet Routing Table:  1398
    AfriNIC Prefixes per ASN:                                      0.00
AfriNIC Region origin ASes announcing only one prefix:              492
AfriNIC Region transit ASes present in the Internet Routing Table:  274
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  690
Number of AfriNIC addresses announced to Internet:                    0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7545        5477        703     638  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3430       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        3153       1806     102  VNPT-AS-VN VNPT Corp, VN
  7713        2712        831     510  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2645       9043      61  CMNET-GD Guangdong Mobile Communication
  9498        2271        434     224  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2269      11102     555  KIXS-AS-KR Korea Telecom, KR
  4755        2136        441     194  TATACOMM-AS TATA Communications formerl
  9394        2039       4914      20  CTTNET China TieTong Telecommunications

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
 11492        4380        295     696  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3951       8129    1807  AMAZON-02, US
 22773        3554       2969     153  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3375       1324      91  SHAW, CA
 16625        3103       1625    2211  AKAMAI-AS, US
   209        2429       5075     532  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2390        364     281  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2304       2981    1621  FRONTIER-FRTR, US
 26484        2184        137     201  IKGUL-26484, 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        5752       1657     141  UNI2-AS, ES
 31334        4903        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3161        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3020        448    2050  AKAMAI-ASN1, EU
 12389        2515       2251     732  ROSTELECOM-AS, RU
  9009        2190        233    1210  M247, GB
 34984        2130        353     563  TELLCOM-AS, TR
 13188        1607        100      35  TRIOLAN, UA
 61317        1215        142     528  ASDETUK http://www.heficed.com, GB

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        6609       3323     603  Uninet S.A. de C.V., MX
 10620        3358        530     506  Telmex Colombia S.A., CO
 11830        2666        369      63  Instituto Costarricense de Electricidad
  6503        1686        327     388  Axtel, S.A.B. de C.V., MX
  7303        1519        988     255  Telecom Argentina S.A., AR
 13999        1413        512     336  Mega Cable, S.A. de C.V., MX
 28573        1368       2243     206  CLARO S.A., BR
  6147        1151        379      39  Telefonica del Peru S.A.A., PE
  3816        1104        571     149  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         954        111      67  Alestra, S. de R.L. 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        1467        393      22  LINKdotNET-AS, EG
 24835        1112        574      28  RAYA-AS, EG
 36992        1091       1539      76  ETISALAT-MISR, EG
 36903         900        472      91  MT-MPLS, MA
 29571         605         68      11  ORANGE-COTE-IVOIRE, CI
  6713         553       1863      34  IAM-AS, MA
 37342         479         32       1  MOVITEL, MZ
 36935         397        521      44  Vodafone-, EG
 23889         365        231      15  MauritiusTelecom, MU
 15399         351         45      11  WANANCHI-, KE

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        6609       3323     603  Uninet S.A. de C.V., MX
 12479        5752       1657     141  UNI2-AS, ES
  7545        5477        703     638  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4903        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4380        295     696  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3951       8129    1807  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3554       2969     153  ASN-CXA-ALL-CCI-22773-RDC, US

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
 12479        5752         5611  UNI2-AS, ES
 31334        4903         4890  KABELDEUTSCHLAND-AS, DE
  7545        5477         4839  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4739         4666  ERX-CERNET-BKB China Education and Research Net
  7155        4036         4009  VIASAT-SP-BACKBONE, US
 11492        4380         3684  CABLEONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
  7552        3430         3408  VIETEL-AS-AP Viettel Group, VN
 22773        3554         3401  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3375         3284  SHAW, CA

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
     26584  UNALLOCATED  8.42.62.0/23               209  CENTURYLINK-US-LEGACY-QWEST,
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     46766  UNALLOCATED  8.44.208.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US

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

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

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:9        /9:11      /10:38      /11:99      /12:286     
/13:578     /14:1169    /15:1917    /16:13363   /17:8233    /18:13929   
/19:25792   /20:41152   /21:48330   /22:100573  /23:83294   /24:472190  
/25:1277    /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        5591        5752  UNI2-AS, ES
  8151        5232        6609  Uninet S.A. de C.V., MX
 31334        4892        4903  KABELDEUTSCHLAND-AS, DE
 11492        4100        4380  CABLEONE, US
  7155        3903        4036  VIASAT-SP-BACKBONE, US
 16509        3820        3951  AMAZON-02, US
 39891        3651        3651  ALJAWWALSTC-AS, SA
  7545        3465        5477  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773        3445        3554  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3319        3430  VIETEL-AS-AP Viettel Group, VN

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

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

   1:1777      2:1182      3:30        4:19        5:3351      6:52     
   8:1428      9:1        11:1        12:1778     13:507      14:2307   
  15:72       16:8        17:291      18:81       20:100      23:3638   
  24:2273     25:2        27:2511     31:3097     32:113      34:3      
  35:42       36:934      37:3250     38:2027     39:413      40:127    
  41:3592     42:902      43:2121     44:208      45:14332    46:3685   
  47:293      49:1460     50:1430     51:93       52:1057     54:235    
  55:671      56:6        57:52       58:1829     59:1170     60:736    
  61:2279     62:2076     63:1986     64:5132     65:2295     66:4965   
  67:2883     68:1188     69:3927     70:1413     71:680      72:2861   
  74:2605     75:1447     76:673      77:2897     78:1653     79:2344   
  80:1948     81:1627     82:1319     83:1311     84:1235     85:2529   
  86:540      87:1739     88:1050     89:2763     90:378      91:7951   
  92:1519     93:2505     94:2719     95:3895     96:1224     97:331    
  98:932      99:977     100:87      101:992     102:973     103:23751  
 104:3436    105:397     106:879     107:1985    108:712     109:3675   
 110:1822    111:2032    112:1609    113:1358    114:1509    115:1829   
 116:1793    117:2146    118:2137    119:1719    120:820     121:1041   
 122:2432    123:1988    124:1548    125:2038    128:1362    129:1183   
 130:640     131:1853    132:750     133:302     134:1312    135:289    
 136:616     137:851     138:2180    139:989     140:674     141:992    
 142:925     143:1220    144:1007    145:306     146:1502    147:1028   
 148:2118    149:1189    150:870     151:1316    152:1494    153:388    
 154:4692    155:1053    156:3110    157:1103    158:841     159:1971   
 160:1886    161:1042    162:3079    163:815     164:1460    165:1284   
 166:555     167:1626    168:3538    169:539     170:4206    171:778    
 172:1933    173:2550    174:985     175:1034    176:2688    177:4229   
 178:3056    179:1438    180:2265    181:2565    182:3086    183:1141   
 184:2420    185:16415   186:3753    187:2739    188:4120    189:2317   
 190:8710    191:1409    192:10357   193:7523    194:6191    195:4401   
 196:3215    197:1947    198:6089    199:5927    200:7236    201:5211   
 202:10527   203:10254   204:4578    205:3096    206:3214    207:3289   
 208:4080    209:4423    210:3994    211:1989    212:3378    213:3105   
 214:1190    215:62      216:6020    217:2424    218:847     219:614    
 220:2034    221:922     222:993     223:1482   

End of report


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