[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 20 Mar 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 21 Mar, 2020

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

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

BGP routing table entries examined:                              801506
    Prefixes after maximum aggregation (per Origin AS):          304658
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      391942
Total ASes present in the Internet Routing Table:                 67449
    Prefixes per ASN:                                             11.88
Origin-only ASes present in the Internet Routing Table:           57908
Origin ASes announcing only one prefix:                           24286
Transit ASes present in the Internet Routing Table:                9541
Transit-only ASes present in the Internet Routing Table:            293
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:              1206
    Number of instances of unregistered ASNs:                      1206
Number of 32-bit ASNs allocated by the RIRs:                      31026
Number of 32-bit ASNs visible in the Routing Table:               25558
Prefixes from 32-bit ASNs in the Routing Table:                  117712
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              0
Number of addresses announced to Internet:                   2853027456
    Equivalent to 170 /8s, 13 /16s and 190 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    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:      594992

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

Prefixes being announced by APNIC Region ASes:                   211614
    Total APNIC prefixes after maximum aggregation:               61666
    APNIC Deaggregation factor:                                    3.43
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:   10441
    APNIC Prefixes per ASN:                                        0.00
APNIC Region origin ASes announcing only one prefix:               2890
APNIC Region transit ASes present in the Internet Routing Table:   1554
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:   5510
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:                    234766
    Total ARIN prefixes after maximum aggregation:               107906
    ARIN Deaggregation factor:                                     2.18
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:    18404
    ARIN Prefixes per ASN:                                         0.00
ARIN Region origin ASes announcing only one prefix:                6731
ARIN Region transit ASes present in the Internet Routing Table:    1908
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3190
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:                    227340
    Total RIPE prefixes after maximum aggregation:               105346
    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:    26949
    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:    3835
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9020
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
                       196608-210331
RIPE Address Blocks   

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

Prefixes being announced by LACNIC Region ASes:                  104557
    Total LACNIC prefixes after maximum aggregation:              24326
    LACNIC Deaggregation factor:                                   4.30
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:   9601
    LACNIC Prefixes per ASN:                                       0.00
LACNIC Region origin ASes announcing only one prefix:              2441
LACNIC Region transit ASes present in the Internet Routing Table:  1817
Average LACNIC Region AS path length visible:                       5.4
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7171
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:                  22022
    Total AfriNIC prefixes after maximum aggregation:              4666
    AfriNIC Deaggregation factor:                                  4.72
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:  1381
    AfriNIC Prefixes per ASN:                                      0.00
AfriNIC Region origin ASes announcing only one prefix:              486
AfriNIC Region transit ASes present in the Internet Routing Table:  269
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  667
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        5364        672     634  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4624       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3367       1331      24  VIETEL-AS-AP Viettel Group, VN
 45899        3139       1798     106  VNPT-AS-VN VNPT Corp, VN
  7713        2706        831     505  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2549       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2294      11102     562  KIXS-AS-KR Korea Telecom, KR
  9498        2255        434     221  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2138        441     193  TATACOMM-AS TATA Communications formerl
  9394        2039       4898      24  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        4056        270     646  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3929       7822    1736  AMAZON-02, US
 22773        3534       2969     152  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3373       1324      92  SHAW, CA
 16625        2988       1566    2136  AKAMAI-AS, US
   209        2393       5076     534  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2320        359     120  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2291       2941    1631  FRONTIER-FRTR, US
 26484        2181        136     177  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        5920       1599     131  UNI2-AS, ES
 31334        4099        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3776        203      20  ALJAWWALSTC-AS, SA
  8551        3106        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2923        461    2005  AKAMAI-ASN1, US
 12389        2498       2250     727  ROSTELECOM-AS, RU
  9009        2081        219    1129  M247, GB
 34984        2072        349     561  TELLCOM-AS, TR
  9121        1922       1691      18  TTNET, TR
 13188        1605        100      43  TRIOLAN, 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        6329       3307     599  Uninet S.A. de C.V., MX
 10620        3362        532     475  Telmex Colombia S.A., CO
 11830        2671        369      63  Instituto Costarricense de Electricidad
  6503        1674        327     389  Axtel, S.A.B. de C.V., MX
  7303        1555       1028     261  Telecom Argentina S.A., AR
 28573        1364       2240     198  CLARO S.A., BR
 13999        1244        477     305  Mega Cable, S.A. de C.V., MX
  6147        1126        378      52  Telefonica del Peru S.A.A., PE
  3816        1094        567     142  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         955        112      69  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        1510        393      22  LINKdotNET-AS, EG
 24835        1102        570      24  RAYA-AS, EG
 36992        1082       1537      74  ETISALAT-MISR, EG
 36903         880        455      88  MT-MPLS, MA
  6713         591       1863      34  IAM-AS, MA
 29571         590         68      11  ORANGE-COTE-IVOIRE, CI
 37342         482         32       1  MOVITEL, MZ
 36935         385        522      40  Vodafone-, EG
 23889         379        231      15  MauritiusTelecom, MU
 15399         356         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        6329       3307     599  Uninet S.A. de C.V., MX
 12479        5920       1599     131  UNI2-AS, ES
  7545        5364        672     634  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4624       4192      73  ERX-CERNET-BKB China Education and Rese
 31334        4099        484      13  KABELDEUTSCHLAND-AS, DE
 11492        4056        270     646  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3929       7822    1736  AMAZON-02, US
 39891        3776        203      20  ALJAWWALSTC-AS, SA
 22773        3534       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        5920         5789  UNI2-AS, ES
  7545        5364         4730  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4624         4551  ERX-CERNET-BKB China Education and Research Net
 31334        4099         4086  KABELDEUTSCHLAND-AS, DE
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3776         3756  ALJAWWALSTC-AS, SA
 11492        4056         3410  CABLEONE, US
 22773        3534         3382  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3367         3343  VIETEL-AS-AP Viettel Group, VN
  6327        3373         3281  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
     27205  UNALLOCATED  8.38.16.0/21              6461  ZAYO-6461, US
     27205  UNALLOCATED  8.38.16.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     27205  UNALLOCATED  8.38.20.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, 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        /8:10       /9:11      /10:38      /11:98      /12:285     
/13:578     /14:1160    /15:1907    /16:13360   /17:8110    /18:13840   
/19:25772   /20:40409   /21:47802   /22:99305   /23:81999   /24:465540  
/25:1282    /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        5759        5920  UNI2-AS, ES
  8151        4948        6329  Uninet S.A. de C.V., MX
 31334        4088        4099  KABELDEUTSCHLAND-AS, DE
  7155        3900        4034  VIASAT-SP-BACKBONE, US
 11492        3878        4056  CABLEONE, US
 16509        3808        3929  AMAZON-02, US
 39891        3776        3776  ALJAWWALSTC-AS, SA
 22773        3423        3534  ASN-CXA-ALL-CCI-22773-RDC, US
  7545        3365        5364  TPG-INTERNET-AP TPG Telecom Limited, AU
  6327        3282        3373  SHAW, CA

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

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

   1:1568      2:1110      3:30        4:19        5:3309      6:51     
   8:1384      9:1        11:1        12:1790     13:497      14:2256   
  15:73       16:9        17:294      18:79       20:78       23:3400   
  24:2282     25:4        27:2510     31:3031     32:103      34:1      
  35:40       36:931      37:3289     38:1936     39:327      40:126    
  41:3466     42:696      43:2111     44:195      45:13918    46:3702   
  47:277      49:1430     50:1213     51:86       52:1112     54:270    
  55:693      56:6        57:48       58:1870     59:1142     60:705    
  61:2221     62:2242     63:1944     64:5068     65:2318     66:4875   
  67:2881     68:1219     69:3795     70:1431     71:675      72:2762   
  74:2606     75:1437     76:667      77:2599     78:1959     79:2316   
  80:1888     81:1591     82:1263     83:1128     84:1208     85:2509   
  86:549      87:1723     88:1100     89:2696     90:313      91:7604   
  92:1477     93:2513     94:2634     95:3781     96:1009     97:338    
  98:967      99:961     100:86      101:1085    102:849     103:23394  
 104:3404    105:410     106:836     107:1956    108:706     109:3681   
 110:1791    111:2028    112:1581    113:1398    114:1537    115:1867   
 116:1794    117:2067    118:2132    119:1710    120:845     121:1042   
 122:2410    123:1900    124:1559    125:2043    128:1376    129:903    
 130:631     131:1807    132:762     133:301     134:1222    135:275    
 136:602     137:845     138:2170    139:1000    140:602     141:928    
 142:890     143:1203    144:975     145:330     146:1483    147:1020   
 148:2071    149:1151    150:817     151:1285    152:1489    153:373    
 154:4741    155:908     156:3405    157:1079    158:796     159:1953   
 160:1879    161:1018    162:3051    163:792     164:1465    165:1253   
 166:544     167:1628    168:3665    169:505     170:4289    171:762    
 172:1899    173:2396    174:1031    175:1020    176:2707    177:4210   
 178:2975    179:1476    180:2157    181:2460    182:3094    183:1116   
 184:2414    185:16269   186:3735    187:2661    188:4102    189:2171   
 190:8472    191:1434    192:10259   193:7386    194:6050    195:4297   
 196:3491    197:1922    198:6127    199:5920    200:7168    201:5103   
 202:10496   203:10132   204:4559    205:3089    206:3232    207:3285   
 208:4030    209:4380    210:4034    211:1997    212:3237    213:3054   
 214:1175    215:54      216:5923    217:2379    218:875     219:602    
 220:1996    221:909     222:998     223:1491   

End of report


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