[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 15 Mai 18:03:47 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 16 May, 2020

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

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

BGP routing table entries examined:                              809430
    Prefixes after maximum aggregation (per Origin AS):          307947
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      395544
Total ASes present in the Internet Routing Table:                 68052
    Prefixes per ASN:                                             11.89
Origin-only ASes present in the Internet Routing Table:           58439
Origin ASes announcing only one prefix:                           24374
Transit ASes present in the Internet Routing Table:                9613
Transit-only ASes present in the Internet Routing Table:            315
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:              1159
    Number of instances of unregistered ASNs:                      1161
Number of 32-bit ASNs allocated by the RIRs:                      31652
Number of 32-bit ASNs visible in the Routing Table:               26151
Prefixes from 32-bit ASNs in the Routing Table:                  120583
Number of bogon 32-bit ASNs visible in the Routing Table:            22
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              0
Number of addresses announced to Internet:                   2841447936
    Equivalent to 169 /8s, 93 /16s and 14 /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:      601773

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

Prefixes being announced by APNIC Region ASes:                   212514
    Total APNIC prefixes after maximum aggregation:               62442
    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:   10555
    APNIC Prefixes per ASN:                                        0.00
APNIC Region origin ASes announcing only one prefix:               2939
APNIC Region transit ASes present in the Internet Routing Table:   1583
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5638
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:                    237015
    Total ARIN prefixes after maximum aggregation:               109071
    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:    18487
    ARIN Prefixes per ASN:                                         0.00
ARIN Region origin ASes announcing only one prefix:                6749
ARIN Region transit ASes present in the Internet Routing Table:    1922
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:    3236
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:                    229794
    Total RIPE prefixes after maximum aggregation:               106388
    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:    27066
    RIPE Prefixes per ASN:                                         0.00
RIPE Region origin ASes announcing only one prefix:               11736
RIPE Region transit ASes present in the Internet Routing Table:    3820
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:    9166
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:                  106330
    Total LACNIC prefixes after maximum aggregation:              24623
    LACNIC Deaggregation factor:                                   4.32
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:   9851
    LACNIC Prefixes per ASN:                                       0.00
LACNIC Region origin ASes announcing only one prefix:              2459
LACNIC Region transit ASes present in the Internet Routing Table:  1851
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:  7424
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:                  22617
    Total AfriNIC prefixes after maximum aggregation:              4670
    AfriNIC Deaggregation factor:                                  4.84
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:              491
AfriNIC Region transit ASes present in the Internet Routing Table:  275
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  687
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        5448        684     623  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4740       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3431       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        2589       9043      61  CMNET-GD Guangdong Mobile Communication
  9498        2269        434     223  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2267      11102     559  KIXS-AS-KR Korea Telecom, KR
  4755        2128        441     194  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        4405        296     648  CABLEONE, US
  7155        4033        264      27  VIASAT-SP-BACKBONE, US
 16509        3992       8102    1802  AMAZON-02, US
 22773        3544       2969     153  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3367       1324      91  SHAW, CA
 16625        3096       1624    2206  AKAMAI-AS, US
 30036        2422        367      90  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2405       5076     537  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2305       2981    1621  FRONTIER-FRTR, US
 26484        2193        137     196  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        5754       1603     138  UNI2-AS, ES
 31334        4828        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3181        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2973        444    2035  AKAMAI-ASN1, EU
 12389        2491       2251     725  ROSTELECOM-AS, RU
  9009        2156        226    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        6586       3314     605  Uninet S.A. de C.V., MX
 10620        3360        530     506  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        1554       1033     253  Telecom Argentina S.A., AR
 13999        1398        510     332  Mega Cable, S.A. de C.V., MX
 28573        1373       2242     205  CLARO S.A., BR
  6147        1154        379      39  Telefonica del Peru S.A.A., PE
  3816        1098        569     150  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        1392        393      22  LINKdotNET-AS, EG
 24835        1114        574      25  RAYA-AS, EG
 36992        1090       1539      76  ETISALAT-MISR, EG
 36903         890        467      88  MT-MPLS, MA
 29571         600         68      12  ORANGE-COTE-IVOIRE, CI
  6713         561       1863      34  IAM-AS, MA
 37342         479         32       1  MOVITEL, MZ
 36935         409        522      42  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        6586       3314     605  Uninet S.A. de C.V., MX
 12479        5754       1603     138  UNI2-AS, ES
  7545        5448        684     623  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4828        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4740       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4405        296     648  CABLEONE, US
  7155        4033        264      27  VIASAT-SP-BACKBONE, US
 16509        3992       8102    1802  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3544       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        5754         5616  UNI2-AS, ES
  7545        5448         4825  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4828         4815  KABELDEUTSCHLAND-AS, DE
  4538        4740         4667  ERX-CERNET-BKB China Education and Research Net
  7155        4033         4006  VIASAT-SP-BACKBONE, US
 11492        4405         3757  CABLEONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
  7552        3431         3409  VIETEL-AS-AP Viettel Group, VN
 22773        3544         3391  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     /14:1169    /15:1916    /16:13347   /17:8231    /18:13931   
/19:25811   /20:40825   /21:48116   /22:100262  /23:83058   /24:470462  
/25:1281    /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        5595        5754  UNI2-AS, ES
  8151        5189        6586  Uninet S.A. de C.V., MX
 31334        4817        4828  KABELDEUTSCHLAND-AS, DE
 11492        4124        4405  CABLEONE, US
  7155        3900        4033  VIASAT-SP-BACKBONE, US
 16509        3863        3992  AMAZON-02, US
 39891        3651        3651  ALJAWWALSTC-AS, SA
  7545        3445        5448  TPG-INTERNET-AP TPG Telecom Limited, AU
 22773        3435        3544  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3321        3431  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)
----------------------------------------------

   1:1553      2:1180      3:30        4:19        5:3383      6:51     
   8:1419      9:1        11:1        12:1773     13:507      14:2290   
  15:74       16:8        17:294      18:81       20:100      23:3575   
  24:2272     25:2        27:2506     31:3109     32:105      34:3      
  35:42       36:929      37:3275     38:1970     39:405      40:124    
  41:3607     42:650      43:2117     44:206      45:14264    46:3696   
  47:293      49:1449     50:1426     51:92       52:1063     54:261    
  55:674      56:6        57:52       58:1760     59:1171     60:736    
  61:2264     62:2201     63:1980     64:5156     65:2294     66:4947   
  67:2855     68:1193     69:3904     70:1415     71:679      72:2875   
  74:2608     75:1439     76:675      77:2849     78:1651     79:2418   
  80:1906     81:1625     82:1303     83:1164     84:1236     85:2507   
  86:544      87:1721     88:994      89:2760     90:310      91:7951   
  92:1514     93:2496     94:2677     95:3903     96:1207     97:335    
  98:937      99:977     100:87      101:976     102:953     103:23667  
 104:3429    105:397     106:869     107:1966    108:713     109:3635   
 110:1816    111:2043    112:1611    113:1355    114:1522    115:1835   
 116:1787    117:2122    118:2059    119:1717    120:815     121:1038   
 122:2438    123:1990    124:1557    125:2037    128:1368    129:1199   
 130:633     131:1837    132:758     133:300     134:1307    135:287    
 136:611     137:862     138:2159    139:1000    140:657     141:959    
 142:929     143:1222    144:981     145:303     146:1502    147:1029   
 148:2107    149:1170    150:864     151:1299    152:1488    153:385    
 154:4652    155:1044    156:3165    157:1104    158:833     159:1977   
 160:1898    161:1042    162:3065    163:812     164:1472    165:1291   
 166:535     167:1612    168:3489    169:564     170:4203    171:779    
 172:1928    173:2552    174:996     175:1033    176:2668    177:4214   
 178:3040    179:1533    180:2275    181:2559    182:3089    183:1122   
 184:2421    185:16452   186:3767    187:2702    188:4085    189:2269   
 190:8651    191:1417    192:10353   193:7499    194:6149    195:4382   
 196:3234    197:1929    198:6089    199:5941    200:7220    201:5247   
 202:10544   203:10298   204:4571    205:3092    206:3199    207:3290   
 208:4052    209:4406    210:3983    211:1979    212:3354    213:3081   
 214:1176    215:61      216:6010    217:2409    218:847     219:613    
 220:2037    221:920     222:997     223:1466   

End of report


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