[afnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jul 19 18:02:21 UTC 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 at lists.apnic.net.

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

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

IPv4 Routing Table Report   04:00 +10GMT Sat 20 Jul, 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:                              947645
    Prefixes after maximum aggregation (per Origin AS):          361758
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      462161
Total ASes present in the Internet Routing Table:                 74671
    Prefixes per ASN:                                             12.69
Origin-only ASes present in the Internet Routing Table:           63901
Origin ASes announcing only one prefix:                           26415
Transit ASes present in the Internet Routing Table:               10770
Transit-only ASes present in the Internet Routing Table:            527
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      84
    Max AS path prepend of ASN (152107)                              80
Prefixes from unregistered ASNs in the Routing Table:               987
    Number of instances of unregistered ASNs:                       992
Number of 32-bit ASNs allocated by the RIRs:                      45017
Number of 32-bit ASNs visible in the Routing Table:               35576
Prefixes from 32-bit ASNs in the Routing Table:                  185719
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            546
Number of addresses announced to Internet:                   3025094016
    Equivalent to 180 /8s, 79 /16s and 69 /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:      312013

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

Prefixes being announced by APNIC Region ASes:                   248749
    Total APNIC prefixes after maximum aggregation:               72435
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          240589
    Unique aggregates announced from the APNIC address blocks:    98095
APNIC Region origin ASes present in the Internet Routing Table:   12955
    APNIC Prefixes per ASN:                                       18.57
APNIC Region origin ASes announcing only one prefix:               4068
APNIC Region transit ASes present in the Internet Routing Table:   1792
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         84
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8490
Number of APNIC addresses announced to Internet:              760171648
    Equivalent to 45 /8s, 79 /16s and 76 /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:                    278174
    Total ARIN prefixes after maximum aggregation:               125480
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           282702
    Unique aggregates announced from the ARIN address blocks:    134789
ARIN Region origin ASes present in the Internet Routing Table:    19125
    ARIN Prefixes per ASN:                                        14.78
ARIN Region origin ASes announcing only one prefix:                6935
ARIN Region transit ASes present in the Internet Routing Table:    1989
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:    4940
Number of ARIN addresses announced to Internet:              1267403776
    Equivalent to 75 /8s, 139 /16s and 12 /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:                    266209
    Total RIPE prefixes after maximum aggregation:               127695
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           261481
    Unique aggregates announced from the RIPE address blocks:    165384
RIPE Region origin ASes present in the Internet Routing Table:    28683
    RIPE Prefixes per ASN:                                         9.12
RIPE Region origin ASes announcing only one prefix:               12118
RIPE Region transit ASes present in the Internet Routing Table:    3983
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          39
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11907
Number of RIPE addresses announced to Internet:               714908928
    Equivalent to 42 /8s, 156 /16s and 165 /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:                  122067
    Total LACNIC prefixes after maximum aggregation:              29247
    LACNIC Deaggregation factor:                                   4.17
Prefixes being announced from the LACNIC address blocks:         120032
    Unique aggregates announced from the LACNIC address blocks:   50057
LACNIC Region origin ASes present in the Internet Routing Table:  11134
    LACNIC Prefixes per ASN:                                      10.78
LACNIC Region origin ASes announcing only one prefix:              2628
LACNIC Region transit ASes present in the Internet Routing Table:  2454
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        60
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  9022
Number of LACNIC addresses announced to Internet:             177140736
    Equivalent to 10 /8s, 142 /16s and 244 /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:                  31459
    Total AfriNIC prefixes after maximum aggregation:              6246
    AfriNIC Deaggregation factor:                                  5.04
Prefixes being announced from the AfriNIC address blocks:         42295
    Unique aggregates announced from the AfriNIC address blocks:  13382
AfriNIC Region origin ASes present in the Internet Routing Table:  1855
    AfriNIC Prefixes per ASN:                                     22.80
AfriNIC Region origin ASes announcing only one prefix:              666
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:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1217
Number of AfriNIC addresses announced to Internet:            105168128
    Equivalent to 6 /8s, 68 /16s and 189 /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        9852       8747      79  CHINAMOBILE-CN China Mobile Communication
  7545        5659        776     670  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4176        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3965       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3786        511     264  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3627       1044      66  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3240       1841     105  VNPT-AS-VN VNPT Corp, VN
 24560        2822        859     418  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2253      11519     575  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       10164      11543    3640  AMAZON-02, US
 11492        4630        307     558  CABLEONE, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
   174        3753       8790     881  COGENT-174, US
  6327        3594       1320      78  SHAW, CA
 22773        3422       3035     188  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3252      54899    2504  DNIC-AS-00749, US
 16625        3136       1320    2197  AKAMAI-AS, US
  7018        2944      23690    1846  ATT-INTERNET4, US
396982        2760       3594     409  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        7693       1708     145  UNI2-AS, ES
 39891        4521        271      59  ALJAWWALSTC-AS, SA
 20940        3837       3396     134  AKAMAI-ASN1, NL
  9009        3586        306    1829  M247, RO
 12389        2942       2302     887  ROSTELECOM-AS, RU
 34984        2346        361     578  TELLCOM-AS, TR
  8551        1772        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Internet 
212238        1715        123    1254  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1574       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       11856       3305     501  UNINET, MX
 10620        3521        492     937  Telmex Colombia S.A., CO
 13999        2544        354     679  Mega Cable, S.A. de C.V., MX
 11830        2004        369      64  Instituto Costarricense de Electricidad y
 28573        1343       2311     258  Claro NXT Telecomunicacoes Ltda, BR
  3816        1326        783     193  COLOMBIA TELECOMUNICACIONES S.A. ESP, CO
  6503        1127        314     478  Axtel, S.A.B. de C.V., MX
 26615        1084       2503      53  TIM SA, BR
  6147        1080        369      22  Telefonica del Peru S.A.A., PE
 22884        1066         97     371  TOTAL PLAY TELECOMUNICACIONES SA DE CV, M

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
 24863        1612        389      16  LINKdotNET-AS, EG
 24835        1570        593      29  RAYA-AS, EG
 36992        1381       1520     280  ETISALAT-MISR, EG
 29571        1269         80      74  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         938        521      43  Vodafone-, EG
  6713         556       1861      35  IAM-AS, MA
 15399         514         56      58  WANANCHI-, KE
 36914         506         82       3  KENET-AS, KE
 37342         431         32       1  MOVITEL, MZ

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       11856       3305     501  UNINET, MX
 16509       10164      11543    3640  AMAZON-02, US
  9808        9852       8747      79  CHINAMOBILE-CN China Mobile Communication
 12479        7693       1708     145  UNI2-AS, ES
  7545        5659        776     670  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934       4192      74  ERX-CERNET-BKB China Education and Resear
 11492        4630        307     558  CABLEONE, US
 39891        4521        271      59  ALJAWWALSTC-AS, SA
 18403        4176        347      23  FPT-AS-AP FPT Telecom Company, VN
  7155        4166        287      88  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        9852         9773  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7693         7548  UNI2-AS, ES
 16509       10164         6524  AMAZON-02, US
  7545        5659         4989  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4934         4860  ERX-CERNET-BKB China Education and Research Net
 39891        4521         4462  ALJAWWALSTC-AS, SA
 18403        4176         4153  FPT-AS-AP FPT Telecom Company, VN
  7155        4166         4078  VIASAT-SP-BACKBONE, US
 11492        4630         4072  CABLEONE, US
  7552        3965         3944  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
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-D
     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
    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
     54338  UNALLOCATED  8.33.241.0/24             3356  LEVEL3, US
     46639  UNALLOCATED  8.38.73.0/24              3356  LEVEL3, 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
23.152.48.0/24       Origin:     46167  RESERVED, ZZ
23.152.48.0/24      Transit:      7018  ATT-INTERNET4, US
23.170.224.0/24      Origin:     30168  RESERVED, ZZ
23.170.224.0/24     Transit:    397095  SETSONLLC, 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       /9:16      /10:37      /11:92      /12:294     
/13:572     /14:1164    /15:2057    /16:13238   /17:8263    /18:13741   
/19:24667   /20:44317   /21:51898   /22:111322  /23:99471   /24:575783  
/25:697     /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        6785        7693  UNI2-AS, ES
  8151        5926       11856  UNINET, MX
 11492        3539        4630  CABLEONE, US
  6327        3391        3594  SHAW, CA
 39891        3361        4521  ALJAWWALSTC-AS, SA
  7155        3111        4166  VIASAT-SP-BACKBONE, US
 22773        2559        3422  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2167        2507  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2150        3521  Telmex Colombia S.A., CO
 16509        2131       10164  AMAZON-02, US

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

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

   1:2316      2:1546      3:377       4:6         5:4394      6:149    
   7:6         8:1519      9:1        11:172      12:1438     13:363    
  14:2360     15:322      16:219      17:365      18:785      20:384    
  21:4        22:188      23:6911     24:2691     25:2        27:2428   
  29:19       31:2598     32:47       34:63       35:134      36:2305   
  37:4431     38:8108     39:911      40:146      41:4010     42:1991   
  43:2316     44:329      45:17303    46:4555     47:300      49:1952   
  50:1863     51:580      52:1572     54:315      55:923      56:8      
  57:215      58:2201     59:1213     60:1050     61:2622     62:2758   
  63:1882     64:5463     65:2285     66:4635     67:3007     68:1310   
  69:4052     70:1160     71:558      72:2779     74:2613     75:1552   
  76:626      77:2490     78:1871     79:1778     80:2198     81:2017   
  82:1651     83:1364     84:1703     85:3191     86:932      87:2302   
  88:1240     89:4192     90:693      91:8174     92:2350     93:2723   
  94:3746     95:4206     96:1281     97:317      98:1024     99:738    
 100:73      101:1160    102:3324    103:28996   104:4800    105:695    
 106:1005    107:2498    108:1156    109:4049    110:2123    111:3203   
 112:2054    113:1784    114:1639    115:1889    116:1898    117:2628   
 118:2596    119:1860    120:1774    121:1356    122:2679    123:2191   
 124:1609    125:2864    126:32      128:1419    129:935     130:1186   
 131:1881    132:801     133:417     134:1694    135:319     136:1121   
 137:1071    138:2866    139:1521    140:1420    141:1374    142:1670   
 143:1624    144:1005    145:361     146:2101    147:2012    148:2550   
 149:2772    150:1026    151:1333    152:2224    153:522     154:6855   
 155:1426    156:2193    157:1821    158:1178    159:2437    160:2809   
 161:1701    162:3525    163:1684    164:1677    165:2132    166:1254   
 167:1821    168:4063    169:806     170:4938    171:1048    172:3880   
 173:3064    174:899     175:1185    176:3456    177:4624    178:3608   
 179:2228    180:2304    181:3798    182:3200    183:1981    184:2257   
 185:20904   186:4986    187:4427    188:4055    189:4182    190:9446   
 191:1521    192:11045   193:9182    194:7491    195:5306    196:3211   
 197:2620    198:6051    199:8038    200:8094    201:6213    202:10203  
 203:10062   204:4600    205:3697    206:4518    207:3605    208:4166   
 209:5038    210:4637    211:2623    212:4368    213:3605    214:1063   
 215:49      216:6728    217:3061    218:1397    219:597     220:1992   
 221:1016    222:857     223:2230   

End of report



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