[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 22 Mai 18:03:33 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 23 May, 2020

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

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

BGP routing table entries examined:                              810143
    Prefixes after maximum aggregation (per Origin AS):          308417
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      395509
Total ASes present in the Internet Routing Table:                 68127
    Prefixes per ASN:                                             11.89
Origin-only ASes present in the Internet Routing Table:           58540
Origin ASes announcing only one prefix:                           24422
Transit ASes present in the Internet Routing Table:                9587
Transit-only ASes present in the Internet Routing Table:            311
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:              1128
    Number of instances of unregistered ASNs:                      1130
Number of 32-bit ASNs allocated by the RIRs:                      31752
Number of 32-bit ASNs visible in the Routing Table:               26206
Prefixes from 32-bit ASNs in the Routing Table:                  120873
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:                   2842268416
    Equivalent to 169 /8s, 105 /16s and 147 /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:               99.5
Total number of prefixes smaller than registry allocations:      602505

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

Prefixes being announced by APNIC Region ASes:                   212647
    Total APNIC prefixes after maximum aggregation:               62483
    APNIC Deaggregation factor:                                    3.40
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:   10556
    APNIC Prefixes per ASN:                                        0.00
APNIC Region origin ASes announcing only one prefix:               2944
APNIC Region transit ASes present in the Internet Routing Table:   1571
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5635
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:                    236997
    Total ARIN prefixes after maximum aggregation:               109239
    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:    18514
    ARIN Prefixes per ASN:                                         0.00
ARIN Region origin ASes announcing only one prefix:                6777
ARIN Region transit ASes present in the Internet Routing Table:    1909
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:    3249
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:                    230256
    Total RIPE prefixes after maximum aggregation:               106602
    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:    27105
    RIPE Prefixes per ASN:                                         0.00
RIPE Region origin ASes announcing only one prefix:               11738
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:                          34
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:                  106438
    Total LACNIC prefixes after maximum aggregation:              24674
    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:   9865
    LACNIC Prefixes per ASN:                                       0.00
LACNIC Region origin ASes announcing only one prefix:              2471
LACNIC Region transit ASes present in the Internet Routing Table:  1844
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:  7442
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:                  22676
    Total AfriNIC prefixes after maximum aggregation:              4690
    AfriNIC Deaggregation factor:                                  4.83
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:  1402
    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:  273
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:  691
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        5493        690     640  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3437       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        3153       1806     101  VNPT-AS-VN VNPT Corp, VN
  7713        2711        830     509  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2631       9043      61  CMNET-GD Guangdong Mobile Communication
  9498        2271        434     224  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2267      11102     556  KIXS-AS-KR Korea Telecom, KR
  4755        2137        441     193  TATACOMM-AS TATA Communications formerl
  9394        2037       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        4421        297     656  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3982       8101    1804  AMAZON-02, US
 22773        3550       2969     152  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3367       1324      91  SHAW, CA
 16625        3097       1624    2206  AKAMAI-AS, US
   209        2399       5075     533  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2390        364     294  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2304       2981    1621  FRONTIER-FRTR, US
 26484        2194        137     197  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        5758       1657     141  UNI2-AS, ES
 31334        4841        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3182        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3004        446    2046  AKAMAI-ASN1, EU
 12389        2501       2251     725  ROSTELECOM-AS, RU
  9009        2155        228    1187  M247, GB
 34984        2129        353     563  TELLCOM-AS, TR
 13188        1607        100      35  TRIOLAN, UA
 25019        1183        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        6610       3316     603  Uninet S.A. de C.V., MX
 10620        3361        530     501  Telmex Colombia S.A., CO
 11830        2667        369      63  Instituto Costarricense de Electricidad
  6503        1686        327     388  Axtel, S.A.B. de C.V., MX
  7303        1518        987     254  Telecom Argentina S.A., AR
 13999        1405        510     335  Mega Cable, S.A. de C.V., MX
 28573        1373       2243     206  CLARO S.A., BR
  6147        1151        379      39  Telefonica del Peru S.A.A., PE
  3816        1101        570     147  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        1089       1539      76  ETISALAT-MISR, EG
 36903         900        472      91  MT-MPLS, MA
 29571         606         68      11  ORANGE-COTE-IVOIRE, CI
  6713         557       1863      34  IAM-AS, MA
 37342         479         32       1  MOVITEL, MZ
 36935         398        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        6610       3316     603  Uninet S.A. de C.V., MX
 12479        5758       1657     141  UNI2-AS, ES
  7545        5493        690     640  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4841        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4739       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4421        297     656  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3982       8101    1804  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3550       2969     152  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        5758         5617  UNI2-AS, ES
  7545        5493         4853  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4841         4828  KABELDEUTSCHLAND-AS, DE
  4538        4739         4666  ERX-CERNET-BKB China Education and Research Net
  7155        4036         4009  VIASAT-SP-BACKBONE, US
 11492        4421         3765  CABLEONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
  7552        3437         3415  VIETEL-AS-AP Viettel Group, VN
 22773        3550         3398  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3367         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
     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     /14:1170    /15:1917    /16:13370   /17:8238    /18:13923   
/19:25809   /20:40748   /21:48251   /22:100491  /23:83034   /24:470887  
/25:1284    /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        5597        5758  UNI2-AS, ES
  8151        5211        6610  Uninet S.A. de C.V., MX
 31334        4830        4841  KABELDEUTSCHLAND-AS, DE
 11492        4140        4421  CABLEONE, US
  7155        3903        4036  VIASAT-SP-BACKBONE, US
 16509        3852        3982  AMAZON-02, US
 39891        3651        3651  ALJAWWALSTC-AS, SA
  7545        3473        5493  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773        3442        3550  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3327        3437  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)
----------------------------------------------

   1:1566      2:1180      3:30        4:19        5:3392      6:52     
   8:1429      9:1        11:1        12:1777     13:509      14:2310   
  15:72       16:8        17:292      18:81       20:100      23:3612   
  24:2276     25:2        27:2511     31:3098     32:113      34:3      
  35:41       36:927      37:3252     38:2020     39:409      40:125    
  41:3608     42:655      43:2121     44:206      45:14301    46:3691   
  47:293      49:1455     50:1425     51:91       52:1062     54:252    
  55:673      56:6        57:52       58:1749     59:1165     60:741    
  61:2275     62:2195     63:1981     64:5131     65:2297     66:4960   
  67:2878     68:1188     69:3929     70:1416     71:680      72:2871   
  74:2609     75:1446     76:671      77:2867     78:1655     79:2372   
  80:1929     81:1628     82:1307     83:1174     84:1238     85:2516   
  86:539      87:1729     88:994      89:2764     90:310      91:7944   
  92:1514     93:2500     94:2693     95:3898     96:1217     97:331    
  98:939      99:977     100:87      101:983     102:971     103:23676  
 104:3430    105:396     106:874     107:1971    108:713     109:3685   
 110:1825    111:2026    112:1611    113:1355    114:1529    115:1812   
 116:1789    117:2133    118:2072    119:1721    120:812     121:1038   
 122:2434    123:1991    124:1557    125:2038    128:1350    129:1184   
 130:636     131:1854    132:756     133:302     134:1304    135:288    
 136:616     137:862     138:2183    139:998     140:672     141:994    
 142:925     143:1210    144:1004    145:306     146:1503    147:1035   
 148:2116    149:1188    150:863     151:1302    152:1495    153:385    
 154:4656    155:1055    156:3098    157:1106    158:838     159:1971   
 160:1903    161:1045    162:3078    163:817     164:1466    165:1284   
 166:553     167:1616    168:3547    169:536     170:4206    171:782    
 172:1932    173:2547    174:996     175:1028    176:2691    177:4225   
 178:3038    179:1484    180:2281    181:2569    182:3087    183:1127   
 184:2419    185:16435   186:3783    187:2686    188:4098    189:2299   
 190:8676    191:1382    192:10353   193:7511    194:6160    195:4391   
 196:3202    197:1927    198:6084    199:5937    200:7224    201:5243   
 202:10551   203:10253   204:4532    205:3089    206:3216    207:3281   
 208:4051    209:4405    210:3983    211:1977    212:3346    213:3083   
 214:1193    215:62      216:6005    217:2415    218:847     219:613    
 220:2036    221:924     222:996     223:1481   

End of report


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