[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Mar 1 15:02:12 -03 2024


This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats en lists.apnic.net.

For historical data, please see https://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

IPv4 Routing Table Report   04:00 +10GMT Sat 02 Mar, 2024

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              941586
    Prefixes after maximum aggregation (per Origin AS):          358304
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      458218
Total ASes present in the Internet Routing Table:                 75469
    Prefixes per ASN:                                             12.48
Origin-only ASes present in the Internet Routing Table:           64725
Origin ASes announcing only one prefix:                           26605
Transit ASes present in the Internet Routing Table:               10744
Transit-only ASes present in the Internet Routing Table:            499
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      55
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:              1089
    Number of instances of unregistered ASNs:                      1091
Number of 32-bit ASNs allocated by the RIRs:                      43735
Number of 32-bit ASNs visible in the Routing Table:               35974
Prefixes from 32-bit ASNs in the Routing Table:                  182089
Number of bogon 32-bit ASNs visible in the Routing Table:            38
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            551
Number of addresses announced to Internet:                   3041740160
    Equivalent to 181 /8s, 77 /16s and 69 /24s
    Percentage of available address space announced:               82.2
    Percentage of allocated address space announced:               82.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:      309583

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

Prefixes being announced by APNIC Region ASes:                   252177
    Total APNIC prefixes after maximum aggregation:               73037
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          244814
    Unique aggregates announced from the APNIC address blocks:   100197
APNIC Region origin ASes present in the Internet Routing Table:   14011
    APNIC Prefixes per ASN:                                       17.47
APNIC Region origin ASes announcing only one prefix:               4234
APNIC Region transit ASes present in the Internet Routing Table:   1873
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9390
Number of APNIC addresses announced to Internet:              774622080
    Equivalent to 46 /8s, 43 /16s and 203 /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, 131072-153913
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    273801
    Total ARIN prefixes after maximum aggregation:               123627
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           278705
    Unique aggregates announced from the ARIN address blocks:    132679
ARIN Region origin ASes present in the Internet Routing Table:    19110
    ARIN Prefixes per ASN:                                        14.58
ARIN Region origin ASes announcing only one prefix:                6966
ARIN Region transit ASes present in the Internet Routing Table:    1980
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4853
Number of ARIN addresses announced to Internet:              1270281728
    Equivalent to 75 /8s, 182 /16s and 246 /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, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

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

Prefixes being announced by RIPE Region ASes:                    263274
    Total RIPE prefixes after maximum aggregation:               125915
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           258093
    Unique aggregates announced from the RIPE address blocks:    162145
RIPE Region origin ASes present in the Internet Routing Table:    28567
    RIPE Prefixes per ASN:                                         9.03
RIPE Region origin ASes announcing only one prefix:               12129
RIPE Region transit ASes present in the Internet Routing Table:    3951
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          40
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11640
Number of RIPE addresses announced to Internet:               712696320
    Equivalent to 42 /8s, 122 /16s and 226 /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
                       196608-216475
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                  120862
    Total LACNIC prefixes after maximum aggregation:              28951
    LACNIC Deaggregation factor:                                   4.17
Prefixes being announced from the LACNIC address blocks:         119376
    Unique aggregates announced from the LACNIC address blocks:   49521
LACNIC Region origin ASes present in the Internet Routing Table:  11056
    LACNIC Prefixes per ASN:                                      10.80
LACNIC Region origin ASes announcing only one prefix:              2627
LACNIC Region transit ASes present in the Internet Routing Table:  2392
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8911
Number of LACNIC addresses announced to Internet:             177632000
    Equivalent to 10 /8s, 150 /16s and 115 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                  30383
    Total AfriNIC prefixes after maximum aggregation:              6062
    AfriNIC Deaggregation factor:                                  5.01
Prefixes being announced from the AfriNIC address blocks:         40047
    Unique aggregates announced from the AfriNIC address blocks:  13231
AfriNIC Region origin ASes present in the Internet Routing Table:  1823
    AfriNIC Prefixes per ASN:                                     21.97
AfriNIC Region origin ASes announcing only one prefix:              649
AfriNIC Region transit ASes present in the Internet Routing Table:  356
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: 1180
Number of AfriNIC addresses announced to Internet:            106194944
    Equivalent to 6 /8s, 84 /16s and 104 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  9808        9817       8740      57  CHINAMOBILE-CN China Mobile Communicati
  7545        5655        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4929       4192      75  ERX-CERNET-BKB China Education and Rese
 18403        4534        347      25  FPT-AS-AP FPT Telecom Company, VN
  7552        3874       1331      21  VIETEL-AS-AP Viettel Group, VN
  7713        3592       1043      64  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        3510        497     252  BBIL-AP BHARTI Airtel Ltd., IN
 45899        3288       1872      98  VNPT-AS-VN VNPT Corp, VN
 24560        2746        862     372  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2309      11259     574  KIXS-AS-KR Korea Telecom, KR

Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        9678      11266    3339  AMAZON-02, US
 11492        4582        304     645  CABLEONE, US
  7155        4181        288      96  VIASAT-SP-BACKBONE, US
 22773        3613       3062     299  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3597       1320      75  SHAW, CA
 16625        3220       1404    2296  AKAMAI-AS, US
   749        3183      54927    2435  DNIC-AS-00749, US
   174        3110       6642     673  COGENT-174, US
   367        2910       3647    1406  DNIC-ASBLK-00306-00371, US
396982        2760       3640     397  GOOGLE-CLOUD-PLATFORM, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        7614       1714     147  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3895       3396     128  AKAMAI-ASN1, NL
  9009        3278        285    1601  M247, RO
 12389        2970       2303     906  ROSTELECOM-AS, RU
  8551        2654        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2351        363     593  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
  8452        1505       1852      14  TE-AS TE-AS, EG
 44477        1489         97     708  STARK-INDUSTRIES, GB

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       12509       3356     603  UNINET, MX
 10620        3524        496     890  Telmex Colombia S.A., CO
 13999        2527        343     645  Mega Cable, S.A. de C.V., MX
 11830        1999        369      64  Instituto Costarricense de Electricidad
 28573        1342       2319     241  Claro NXT Telecomunicacoes Ltda, BR
  3816        1310        787     197  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6503        1213        349     490  Axtel, S.A.B. de C.V., MX
 11664        1144        179     421  Techtel LMDS Comunicaciones Interactiva
  6147        1088        369      22  Telefonica del Peru S.A.A., PE
 22884        1069        114     377  TOTAL PLAY TELECOMUNICACIONES SA DE CV,

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24835        1550        545      28  RAYA-AS, EG
 24863        1518        389      16  LINKdotNET-AS, EG
 36992        1362       1519     281  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1159         74      61  ORANGE-COTE-IVOIRE, CI
 36935         932        521      42  Vodafone-, EG
  6713         554       1861      34  IAM-AS, MA
 15399         530         55      53  WANANCHI-, KE
 36914         486         82       3  KENET-AS, KE
 24757         449         73       5  EthioNet-AS, ET

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       12509       3356     603  UNINET, MX
  9808        9817       8740      57  CHINAMOBILE-CN China Mobile Communicati
 16509        9678      11266    3339  AMAZON-02, US
 12479        7614       1714     147  UNI2-AS, ES
  7545        5655        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4929       4192      75  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4582        304     645  CABLEONE, US
 18403        4534        347      25  FPT-AS-AP FPT Telecom Company, VN
  7155        4181        288      96  VIASAT-SP-BACKBONE, US

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

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

   ASN  No of nets  Net Savings  Description
  9808        9817         9760  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7614         7467  UNI2-AS, ES
 16509        9678         6339  AMAZON-02, US
  7545        5655         4981  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4929         4854  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
 18403        4534         4509  FPT-AS-AP FPT Telecom Company, VN
  7155        4181         4085  VIASAT-SP-BACKBONE, US
 11492        4582         3937  CABLEONE, US
  7552        3874         3853  VIETEL-AS-AP Viettel Group, VN

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     33492  UNALLOCATED  8.6.184.0/23             33650  COMCAST-33650, US
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     40493  UNALLOCATED  8.17.26.0/24              3356  LEVEL3, US
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24             46887  LIGHTOWER, US
    396894  UNALLOCATED  8.28.201.0/24            46887  LIGHTOWER, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US

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

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
23.141.0.0/24        Origin:    395350  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.176.160.0/24      Origin:    397327  RESERVED, ZZ
23.176.160.0/24     Transit:     19108  SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24      Origin:     27593  RESERVED, ZZ
23.189.192.0/24     Transit:       174  COGENT-174, US
27.0.192.0/24        Origin:    136800  MOACKCOLTD-AS-AP MOACK.Co.LTD, KR
27.0.192.0/24       Transit:      6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-add-IANA

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:14      /10:37      /11:98      /12:299     
/13:577     /14:1192    /15:2063    /16:13384   /17:8238    /18:13736   
/19:24928   /20:44351   /21:51559   /22:110701  /23:98593   /24:571071  
/25:729     /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        6729        7614  UNI2-AS, ES
  8151        6464       12509  UNINET, MX
 11492        3495        4582  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3394        3597  SHAW, CA
  7155        3125        4181  VIASAT-SP-BACKBONE, US
 22773        2649        3613  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2165        2509  MEDIACOM-ENTERPRISE-BUSINESS, US
  8551        2130        2654  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 10620        2129        3524  Telmex Colombia S.A., CO

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

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

   1:2317      2:1525      3:306       4:6         5:4499      6:161    
   7:6         8:1520      9:1        11:172      12:1469     13:390    
  14:2390     15:313      16:208      17:368      18:741      20:356    
  21:4        22:188      23:6628     24:2703     25:2        27:2571   
  29:19       31:2616     32:48       34:42       35:125      36:2183   
  37:4502     38:7054     39:893      40:140      41:4063     42:2189   
  43:2337     44:324      45:16923    46:4354     47:287      49:1932   
  50:1899     51:576      52:1582     54:309      55:887      56:5      
  57:149      58:2036     59:1181     60:1021     61:2591     62:2697   
  63:1905     64:5516     65:2325     66:4714     67:3050     68:1340   
  69:4061     70:1199     71:574      72:2899     74:2595     75:1553   
  76:634      77:2404     78:1839     79:2470     80:2143     81:1923   
  82:1498     83:1248     84:1654     85:3105     86:837      87:2221   
  88:1234     89:4015     90:685      91:7950     92:2194     93:2635   
  94:3655     95:4105     96:1287     97:313      98:1038     99:743    
 100:91      101:1174    102:3089    103:32531   104:4762    105:604    
 106:937     107:2764    108:1125    109:4040    110:2143    111:3218   
 112:2063    113:1824    114:1782    115:1967    116:1967    117:2646   
 118:2745    119:1953    120:1813    121:1332    122:2686    123:2228   
 124:1606    125:2871    126:28      128:1549    129:926     130:1089   
 131:1812    132:816     133:410     134:1709    135:311     136:920    
 137:1048    138:2793    139:1560    140:1375    141:1349    142:1557   
 143:1478    144:1023    145:345     146:2019    147:1706    148:2484   
 149:2560    150:1026    151:1323    152:1982    153:526     154:5752   
 155:1382    156:2097    157:1564    158:1099    159:2235    160:2604   
 161:1634    162:3599    163:1711    164:1623    165:2113    166:1071   
 167:1701    168:3962    169:792     170:4704    171:1017    172:3842   
 173:3030    174:904     175:1218    176:3648    177:4466    178:3562   
 179:2237    180:2364    181:3659    182:3447    183:2022    184:2266   
 185:20621   186:4835    187:4369    188:4030    189:4087    190:9286   
 191:1442    192:11004   193:9008    194:7451    195:5261    196:3135   
 197:2563    198:6005    199:7302    200:8071    201:6354    202:10478  
 203:10147   204:4572    205:3748    206:4498    207:3527    208:4166   
 209:5009    210:4647    211:2575    212:4292    213:3391    214:1108   
 215:44      216:6719    217:2811    218:1363    219:580     220:2056   
 221:1024    222:876     223:2237   

End of report


Más información sobre la lista de distribución LACNOG