[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 8 18:03:58 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 09 May, 2020

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

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

BGP routing table entries examined:                              807903
    Prefixes after maximum aggregation (per Origin AS):          307689
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      396306
Total ASes present in the Internet Routing Table:                 67970
    Prefixes per ASN:                                             11.89
Origin-only ASes present in the Internet Routing Table:           58375
Origin ASes announcing only one prefix:                           24342
Transit ASes present in the Internet Routing Table:                9595
Transit-only ASes present in the Internet Routing Table:            312
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      50
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:              1107
    Number of instances of unregistered ASNs:                      1109
Number of 32-bit ASNs allocated by the RIRs:                      31553
Number of 32-bit ASNs visible in the Routing Table:               26053
Prefixes from 32-bit ASNs in the Routing Table:                  120117
Number of bogon 32-bit ASNs visible in the Routing Table:            22
Special use prefixes present in the Routing Table:                    2
Prefixes being announced from unallocated address space:              0
Number of addresses announced to Internet:                   2840843264
    Equivalent to 169 /8s, 83 /16s and 212 /24s
    Percentage of available address space announced:               76.7
    Percentage of allocated address space announced:               76.7
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:      600637

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

Prefixes being announced by APNIC Region ASes:                   211601
    Total APNIC prefixes after maximum aggregation:               62375
    APNIC Deaggregation factor:                                    3.39
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:   10552
    APNIC Prefixes per ASN:                                        0.00
APNIC Region origin ASes announcing only one prefix:               2951
APNIC Region transit ASes present in the Internet Routing Table:   1575
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5627
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:                    237006
    Total ARIN prefixes after maximum aggregation:               109034
    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:    18488
    ARIN Prefixes per ASN:                                         0.00
ARIN Region origin ASes announcing only one prefix:                6744
ARIN Region transit ASes present in the Internet Routing Table:    1917
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:    3230
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:                    229629
    Total RIPE prefixes after maximum aggregation:               106279
    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:    27047
    RIPE Prefixes per ASN:                                         0.00
RIPE Region origin ASes announcing only one prefix:               11719
RIPE Region transit ASes present in the Internet Routing Table:    3830
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9135
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:                  106119
    Total LACNIC prefixes after maximum aggregation:              24608
    LACNIC Deaggregation factor:                                   4.31
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:   9810
    LACNIC Prefixes per ASN:                                       0.00
LACNIC Region origin ASes announcing only one prefix:              2438
LACNIC Region transit ASes present in the Internet Routing Table:  1844
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        50
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7383
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, 262144-270748 + ERX transfers
LACNIC Address Blocks 

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

Prefixes being announced by AfriNIC Region ASes:                  22440
    Total AfriNIC prefixes after maximum aggregation:              4678
    AfriNIC Deaggregation factor:                                  4.80
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:  1388
    AfriNIC Prefixes per ASN:                                      0.00
AfriNIC Region origin ASes announcing only one prefix:              490
AfriNIC Region transit ASes present in the Internet Routing Table:  268
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  678
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        5445        686     636  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3389       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        2811       1766     151  VNPT-AS-VN VNPT Corp, VN
  7713        2709        830     515  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2574       9043      62  CMNET-GD Guangdong Mobile Communication
  9498        2268        434     223  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2267      11102     561  KIXS-AS-KR Korea Telecom, KR
  4755        2126        441     194  TATACOMM-AS TATA Communications formerl
  9394        2042       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        4352        291     664  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3996       8007    1791  AMAZON-02, US
 22773        3542       2969     153  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3368       1324      92  SHAW, CA
 16625        3094       1625    2208  AKAMAI-AS, US
 30036        2403        366      95  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2401       5077     535  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2302       2981    1621  FRONTIER-FRTR, US
 26484        2191        137     198  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        5767       1603     138  UNI2-AS, ES
 31334        4768        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3201        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2960        443    2024  AKAMAI-ASN1, EU
 12389        2496       2251     725  ROSTELECOM-AS, RU
  9009        2133        222    1169  M247, GB
 34984        2111        351     561  TELLCOM-AS, TR
 13188        1607        100      35  TRIOLAN, UA
 25019        1181        987     110  SAUDINETSTC-AS, 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
  8151        6530       3305     586  Uninet S.A. de C.V., MX
 10620        3350        530     530  Telmex Colombia S.A., CO
 11830        2665        369      63  Instituto Costarricense de Electricidad
  6503        1686        327     388  Axtel, S.A.B. de C.V., MX
  7303        1553       1032     258  Telecom Argentina S.A., AR
 13999        1382        507     335  Mega Cable, S.A. de C.V., MX
 28573        1374       2242     203  CLARO S.A., BR
  6147        1153        379      39  Telefonica del Peru S.A.A., PE
  3816        1096        568     144  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         957        112      70  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        1391        393      22  LINKdotNET-AS, EG
 24835        1114        574      25  RAYA-AS, EG
 36992        1091       1539      76  ETISALAT-MISR, EG
 36903         890        467      88  MT-MPLS, MA
 29571         601         68      12  ORANGE-COTE-IVOIRE, CI
  6713         562       1863      34  IAM-AS, MA
 37342         466         32       1  MOVITEL, MZ
 36935         409        522      44  Vodafone-, EG
 23889         365        231      15  MauritiusTelecom, MU
 15399         351         45      10  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        6530       3305     586  Uninet S.A. de C.V., MX
 12479        5767       1603     138  UNI2-AS, ES
  7545        5445        686     636  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4768        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4352        291     664  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3996       8007    1791  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3542       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        5767         5629  UNI2-AS, ES
  7545        5445         4809  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4768         4755  KABELDEUTSCHLAND-AS, DE
  4538        4739         4666  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 11492        4352         3688  CABLEONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
 22773        3542         3389  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3389         3367  VIETEL-AS-AP Viettel Group, VN
  6327        3368         3276  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
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, 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
     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
198.18.17.0/24            18229  CTRLS-AS-IN CtrlS Datacenters Ltd., IN

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     /14:1167    /15:1915    /16:13351   /17:8242    /18:13611   
/19:25818   /20:40699   /21:48063   /22:100236  /23:82842   /24:469658  
/25:1280    /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        5608        5767  UNI2-AS, ES
  8151        5139        6530  Uninet S.A. de C.V., MX
 31334        4757        4768  KABELDEUTSCHLAND-AS, DE
 11492        4106        4352  CABLEONE, US
  7155        3900        4034  VIASAT-SP-BACKBONE, US
 16509        3867        3996  AMAZON-02, US
 39891        3651        3651  ALJAWWALSTC-AS, SA
  7545        3441        5445  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773        3433        3542  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3279        3389  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)
----------------------------------------------

   1:1561      2:1161      3:30        4:19        5:3344      6:51     
   8:1410      9:1        11:1        12:1787     13:508      14:2291   
  15:75       16:9        17:296      18:81       20:97       23:3550   
  24:2265     25:2        27:2495     31:3095     32:104      34:3      
  35:42       36:923      37:3270     38:1968     39:398      40:124    
  41:3595     42:660      43:2115     44:207      45:14223    46:3702   
  47:286      49:1449     50:1424     51:92       52:1073     54:263    
  55:676      56:6        57:52       58:1758     59:1171     60:729    
  61:2262     62:2200     63:1982     64:5145     65:2296     66:4958   
  67:2849     68:1183     69:3863     70:1432     71:679      72:2892   
  74:2607     75:1436     76:671      77:2830     78:1655     79:2363   
  80:1923     81:1622     82:1269     83:1175     84:1233     85:2503   
  86:546      87:1714     88:986      89:2768     90:313      91:7925   
  92:1506     93:2496     94:2688     95:3896     96:1203     97:330    
  98:937      99:977     100:87      101:971     102:922     103:23620  
 104:3410    105:381     106:805     107:1961    108:707     109:3728   
 110:1832    111:2009    112:1602    113:1359    114:1532    115:1826   
 116:1790    117:2078    118:2084    119:1717    120:815     121:1034   
 122:2419    123:1984    124:1549    125:2029    128:1352    129:1199   
 130:633     131:1836    132:765     133:300     134:1309    135:285    
 136:618     137:858     138:2169    139:994     140:639     141:949    
 142:902     143:1210    144:980     145:331     146:1495    147:1049   
 148:2108    149:1168    150:859     151:1303    152:1485    153:384    
 154:4669    155:1041    156:3267    157:1104    158:830     159:1978   
 160:1927    161:1041    162:3062    163:857     164:1458    165:1290   
 166:535     167:1608    168:3475    169:534     170:4187    171:768    
 172:1916    173:2534    174:1005    175:1018    176:2653    177:4232   
 178:3045    179:1548    180:2278    181:2528    182:3084    183:1123   
 184:2420    185:16436   186:3751    187:2718    188:4107    189:2283   
 190:8656    191:1419    192:10351   193:7494    194:6128    195:4378   
 196:3219    197:1874    198:6089    199:5961    200:7199    201:5235   
 202:10523   203:10165   204:4576    205:3088    206:3202    207:3277   
 208:4074    209:4419    210:3988    211:1977    212:3337    213:3072   
 214:1174    215:61      216:5982    217:2411    218:844     219:596    
 220:2027    221:916     222:998     223:1452   

End of report



More information about the safnog mailing list