[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Mayo 10 15:02:33 -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 11 May, 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:                              950403
    Prefixes after maximum aggregation (per Origin AS):          361677
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      462013
Total ASes present in the Internet Routing Table:                 75770
    Prefixes per ASN:                                             12.54
Origin-only ASes present in the Internet Routing Table:           64941
Origin ASes announcing only one prefix:                           26657
Transit ASes present in the Internet Routing Table:               10829
Transit-only ASes present in the Internet Routing Table:            521
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:              1018
    Number of instances of unregistered ASNs:                      1020
Number of 32-bit ASNs allocated by the RIRs:                      44444
Number of 32-bit ASNs visible in the Routing Table:               36372
Prefixes from 32-bit ASNs in the Routing Table:                  185953
Number of bogon 32-bit ASNs visible in the Routing Table:            15
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            621
Number of addresses announced to Internet:                   3026428800
    Equivalent to 180 /8s, 99 /16s and 163 /24s
    Percentage of available address space announced:               81.7
    Percentage of allocated address space announced:               81.7
    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:      312502

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

Prefixes being announced by APNIC Region ASes:                   254658
    Total APNIC prefixes after maximum aggregation:               73859
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          246920
    Unique aggregates announced from the APNIC address blocks:   101002
APNIC Region origin ASes present in the Internet Routing Table:   14135
    APNIC Prefixes per ASN:                                       17.47
APNIC Region origin ASes announcing only one prefix:               4298
APNIC Region transit ASes present in the Internet Routing Table:   1893
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9529
Number of APNIC addresses announced to Internet:              761386368
    Equivalent to 45 /8s, 97 /16s and 213 /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:                    276143
    Total ARIN prefixes after maximum aggregation:               125116
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           280880
    Unique aggregates announced from the ARIN address blocks:    133882
ARIN Region origin ASes present in the Internet Routing Table:    19162
    ARIN Prefixes per ASN:                                        14.66
ARIN Region origin ASes announcing only one prefix:                6970
ARIN Region transit ASes present in the Internet Routing Table:    1998
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4907
Number of ARIN addresses announced to Internet:              1267763200
    Equivalent to 75 /8s, 144 /16s and 136 /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, 393216-402332
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:                    266198
    Total RIPE prefixes after maximum aggregation:               126787
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           260985
    Unique aggregates announced from the RIPE address blocks:    163900
RIPE Region origin ASes present in the Internet Routing Table:    28621
    RIPE Prefixes per ASN:                                         9.12
RIPE Region origin ASes announcing only one prefix:               12116
RIPE Region transit ASes present in the Internet Routing Table:    3963
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11770
Number of RIPE addresses announced to Internet:               713969920
    Equivalent to 42 /8s, 142 /16s and 81 /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:                  121352
    Total LACNIC prefixes after maximum aggregation:              29046
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         119616
    Unique aggregates announced from the LACNIC address blocks:   49547
LACNIC Region origin ASes present in the Internet Routing Table:  11081
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2615
LACNIC Region transit ASes present in the Internet Routing Table:  2414
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:  8959
Number of LACNIC addresses announced to Internet:             177016320
    Equivalent to 10 /8s, 141 /16s and 14 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                  31034
    Total AfriNIC prefixes after maximum aggregation:              6185
    AfriNIC Deaggregation factor:                                  5.02
Prefixes being announced from the AfriNIC address blocks:         41381
    Unique aggregates announced from the AfriNIC address blocks:  13200
AfriNIC Region origin ASes present in the Internet Routing Table:  1844
    AfriNIC Prefixes per ASN:                                     22.44
AfriNIC Region origin ASes announcing only one prefix:              658
AfriNIC Region transit ASes present in the Internet Routing Table:  361
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1207
Number of AfriNIC addresses announced to Internet:            105939200
    Equivalent to 6 /8s, 80 /16s and 129 /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        9846       8743      68  CHINAMOBILE-CN China Mobile Communicati
  7545        5650        777     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4939       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4510        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3875       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3716        507     262  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3559       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3290       1872      99  VNPT-AS-VN VNPT Corp, VN
 24560        2789        863     378  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2292      11522     578  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        9922      11375    3519  AMAZON-02, US
 11492        4609        306     610  CABLEONE, US
  7155        4167        287      89  VIASAT-SP-BACKBONE, US
  6327        3596       1320      79  SHAW, CA
 22773        3496       3041     235  ASN-CXA-ALL-CCI-22773-RDC, US
   174        3459       6632     844  COGENT-174, US
   749        3225      54904    2477  DNIC-AS-00749, US
 16625        3072       1320    2207  AKAMAI-AS, US
   367        2815       3459    1331  DNIC-ASBLK-00306-00371, US
  7018        2810      23655    1792  ATT-INTERNET4, 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        7750       1708     144  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3851       3396     130  AKAMAI-ASN1, NL
  9009        3310        287    1618  M247, RO
 12389        2990       2305     902  ROSTELECOM-AS, RU
  8551        2634        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2346        363     584  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
212238        1580        113    1148  CDNEXT, GB
  8452        1576       1852      14  TE-AS TE-AS, EG

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       12308       3318     488  UNINET, MX
 10620        3503        491     941  Telmex Colombia S.A., CO
 13999        2539        351     662  Mega Cable, S.A. de C.V., MX
 11830        2004        369      64  Instituto Costarricense de Electricidad
 28573        1350       2314     252  Claro NXT Telecomunicacoes Ltda, BR
  3816        1320        789     194  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1181        176     440  Techtel LMDS Comunicaciones Interactiva
  6503        1133        314     478  Axtel, S.A.B. de C.V., MX
  6147        1101        369      22  Telefonica del Peru S.A.A., PE
 26615        1068       2503      53  TIM SA, BR

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        1549        545      28  RAYA-AS, EG
 24863        1503        389      20  LINKdotNET-AS, EG
 36992        1373       1519     282  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1198         77      59  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         557       1861      35  IAM-AS, MA
 15399         535         55      54  WANANCHI-, KE
 36914         482         82       3  KENET-AS, KE
 24757         434         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       12308       3318     488  UNINET, MX
 16509        9922      11375    3519  AMAZON-02, US
  9808        9846       8743      68  CHINAMOBILE-CN China Mobile Communicati
 12479        7750       1708     144  UNI2-AS, ES
  7545        5650        777     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4939       4192      74  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4609        306     610  CABLEONE, US
 18403        4510        347      23  FPT-AS-AP FPT Telecom Company, VN
  7155        4167        287      89  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        9846         9778  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7750         7606  UNI2-AS, ES
 16509        9922         6403  AMAZON-02, US
  7545        5650         4977  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4939         4865  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
 18403        4510         4487  FPT-AS-AP FPT Telecom Company, VN
  7155        4167         4078  VIASAT-SP-BACKBONE, US
 11492        4609         3999  CABLEONE, US
  7552        3875         3854  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
     65536  DOCUMENT     5.102.30.0/24            65512  -Private Use AS-, ZZ
     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
     46639  UNALLOCATED  8.17.66.0/24               701  UUNET, 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  CROWNCASTLE-AS46887, US
    396894  UNALLOCATED  8.28.201.0/24            46887  CROWNCASTLE-AS46887, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, 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
14.192.20.0/22       Origin:     26658  HENGTONG-IDC-LLC, US
14.192.20.0/22      Transit:      6939  HURRICANE, US
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
23.147.240.0/24      Origin:    398208  RESERVED, ZZ
23.147.240.0/24     Transit:     19930  EQUINIX-EC-CH, US
23.189.192.0/24      Origin:     27593  RESERVED, ZZ
23.189.192.0/24     Transit:       174  COGENT-174, 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      /11:94      /12:296     
/13:579     /14:1170    /15:2048    /16:13273   /17:8260    /18:13749   
/19:24728   /20:44221   /21:51717   /22:111488  /23:99323   /24:578664  
/25:726     /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        6855        7750  UNI2-AS, ES
  8151        6330       12308  UNINET, MX
 11492        3518        4609  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3392        3596  SHAW, CA
  7155        3111        4167  VIASAT-SP-BACKBONE, US
 22773        2590        3496  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2155        2500  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2129        3503  Telmex Colombia S.A., CO
  8551        2110        2634  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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

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

   1:2330      2:1514      3:346       4:6         5:4555      6:164    
   7:6         8:1513      9:1        11:172      12:1456     13:365    
  14:2407     15:318      16:214      17:369      18:768      20:365    
  21:4        22:188      23:6738     24:2714     25:2        27:2537   
  29:19       31:2573     32:49       34:59       35:133      36:2293   
  37:4482     38:7496     39:896      40:122      41:4031     42:2208   
  43:2367     44:317      45:17081    46:4500     47:307      49:1958   
  50:1906     51:575      52:1579     54:312      55:999      56:5      
  57:169      58:2102     59:1250     60:1034     61:2607     62:2683   
  63:1889     64:5527     65:2336     66:4695     67:2992     68:1323   
  69:4108     70:1188     71:583      72:2879     74:2592     75:1556   
  76:614      77:2481     78:1854     79:2508     80:2197     81:2016   
  82:1566     83:1333     84:1654     85:3152     86:852      87:2271   
  88:1252     89:4084     90:682      91:8120     92:2297     93:2690   
  94:3720     95:4189     96:1286     97:315      98:1040     99:742    
 100:72      101:1179    102:3264    103:32571   104:4803    105:674    
 106:946     107:2769    108:1148    109:4140    110:2136    111:3300   
 112:2075    113:1859    114:1788    115:2070    116:1903    117:2641   
 118:2816    119:1973    120:1790    121:1328    122:2679    123:2237   
 124:1635    125:2882    126:32      128:1479    129:938     130:1146   
 131:1835    132:803     133:410     134:1736    135:320     136:948    
 137:1067    138:2812    139:1534    140:1392    141:1342    142:1585   
 143:1475    144:1003    145:362     146:2058    147:1885    148:2489   
 149:2751    150:1032    151:1332    152:2143    153:525     154:6488   
 155:1464    156:2286    157:1778    158:1149    159:2336    160:2638   
 161:1671    162:3559    163:1707    164:1641    165:2149    166:1175   
 167:1798    168:3895    169:801     170:4852    171:1042    172:3848   
 173:3048    174:896     175:1199    176:3679    177:4636    178:3725   
 179:2220    180:2356    181:3716    182:3429    183:2003    184:2269   
 185:20765   186:4993    187:4480    188:4077    189:4193    190:9412   
 191:1460    192:10976   193:9102    194:7513    195:5282    196:3153   
 197:2438    198:6038    199:7813    200:7993    201:6302    202:10496  
 203:10193   204:4573    205:3784    206:4473    207:3586    208:4154   
 209:5060    210:4688    211:2621    212:4315    213:3438    214:1047   
 215:49      216:6774    217:2997    218:1340    219:583     220:2048   
 221:1033    222:871     223:2239   

End of report


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