[afnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri May 17 18:02:16 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 18 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:                              951216
    Prefixes after maximum aggregation (per Origin AS):          361636
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      462147
Total ASes present in the Internet Routing Table:                 75834
    Prefixes per ASN:                                             12.54
Origin-only ASes present in the Internet Routing Table:           64987
Origin ASes announcing only one prefix:                           26714
Transit ASes present in the Internet Routing Table:               10847
Transit-only ASes present in the Internet Routing Table:            524
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      60
    Max AS path prepend of ASN ( 53153)                              57
Prefixes from unregistered ASNs in the Routing Table:               987
    Number of instances of unregistered ASNs:                       989
Number of 32-bit ASNs allocated by the RIRs:                      44485
Number of 32-bit ASNs visible in the Routing Table:               36440
Prefixes from 32-bit ASNs in the Routing Table:                  186418
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:            606
Number of addresses announced to Internet:                   3027540096
    Equivalent to 180 /8s, 116 /16s and 152 /24s
    Percentage of available address space announced:               81.8
    Percentage of allocated address space announced:               81.8
    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:      312849

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

Prefixes being announced by APNIC Region ASes:                   254867
    Total APNIC prefixes after maximum aggregation:               73891
    APNIC Deaggregation factor:                                    3.45
Prefixes being announced from the APNIC address blocks:          247091
    Unique aggregates announced from the APNIC address blocks:   101153
APNIC Region origin ASes present in the Internet Routing Table:   14165
    APNIC Prefixes per ASN:                                       17.44
APNIC Region origin ASes announcing only one prefix:               4314
APNIC Region transit ASes present in the Internet Routing Table:   1905
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:   9555
Number of APNIC addresses announced to Internet:              761418368
    Equivalent to 45 /8s, 98 /16s and 82 /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:                    276396
    Total ARIN prefixes after maximum aggregation:               124938
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           281065
    Unique aggregates announced from the ARIN address blocks:    133839
ARIN Region origin ASes present in the Internet Routing Table:    19163
    ARIN Prefixes per ASN:                                        14.67
ARIN Region origin ASes announcing only one prefix:                6971
ARIN Region transit ASes present in the Internet Routing Table:    1995
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:    4903
Number of ARIN addresses announced to Internet:              1267620352
    Equivalent to 75 /8s, 142 /16s and 90 /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:                    266514
    Total RIPE prefixes after maximum aggregation:               126908
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           261332
    Unique aggregates announced from the RIPE address blocks:    163916
RIPE Region origin ASes present in the Internet Routing Table:    28657
    RIPE Prefixes per ASN:                                         9.12
RIPE Region origin ASes announcing only one prefix:               12135
RIPE Region transit ASes present in the Internet Routing Table:    3970
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          46
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11806
Number of RIPE addresses announced to Internet:               713922560
    Equivalent to 42 /8s, 141 /16s and 152 /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:                  121268
    Total LACNIC prefixes after maximum aggregation:              29058
    LACNIC Deaggregation factor:                                   4.17
Prefixes being announced from the LACNIC address blocks:         119506
    Unique aggregates announced from the LACNIC address blocks:   49581
LACNIC Region origin ASes present in the Internet Routing Table:  11086
    LACNIC Prefixes per ASN:                                      10.78
LACNIC Region origin ASes announcing only one prefix:              2641
LACNIC Region transit ASes present in the Internet Routing Table:  2415
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:  8971
Number of LACNIC addresses announced to Internet:             176910336
    Equivalent to 10 /8s, 139 /16s and 112 /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:                  31184
    Total AfriNIC prefixes after maximum aggregation:              6175
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         41616
    Unique aggregates announced from the AfriNIC address blocks:  13188
AfriNIC Region origin ASes present in the Internet Routing Table:  1842
    AfriNIC Prefixes per ASN:                                     22.59
AfriNIC Region origin ASes announcing only one prefix:              653
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:                       31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1205
Number of AfriNIC addresses announced to Internet:            107281664
    Equivalent to 6 /8s, 100 /16s and 253 /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        9841       8743      67  CHINAMOBILE-CN China Mobile Communicati
  7545        5638        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4933       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4407        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3909       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3731        507     261  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3583       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3289       1872     100  VNPT-AS-VN VNPT Corp, VN
 24560        2795        864     379  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2291      11522     577  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        9916      11376    3544  AMAZON-02, US
 11492        4616        306     604  CABLEONE, US
  7155        4167        287      89  VIASAT-SP-BACKBONE, US
  6327        3597       1320      79  SHAW, CA
   174        3531       8774     869  COGENT-174, US
 22773        3488       3041     233  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3224      54904    2476  DNIC-AS-00749, US
 16625        3101       1318    2218  AKAMAI-AS, US
  7018        2819      23659    1777  ATT-INTERNET4, US
   367        2789       3442    1313  DNIC-ASBLK-00306-00371, 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        7766       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3823       3396     133  AKAMAI-ASN1, NL
  9009        3350        292    1657  M247, RO
 12389        2989       2305     902  ROSTELECOM-AS, RU
  8551        2638        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2345        362     581  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
212238        1587        114    1155  CDNEXT, GB
  8452        1580       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       12199       3321     487  UNINET, MX
 10620        3511        492     939  Telmex Colombia S.A., CO
 13999        2540        353     663  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        1321        789     190  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1183        176     443  Techtel LMDS Comunicaciones Interactiva
  6503        1125        314     478  Axtel, S.A.B. de C.V., MX
  6147        1085        369      22  Telefonica del Peru S.A.A., PE
 26615        1074       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        1502        389      20  LINKdotNET-AS, EG
 36992        1373       1519     282  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1200         77      60  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         557       1861      35  IAM-AS, MA
 15399         532         56      56  WANANCHI-, KE
 37342         508         32       1  MOVITEL, MZ
 36914         489         82       3  KENET-AS, KE

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       12199       3321     487  UNINET, MX
 16509        9916      11376    3544  AMAZON-02, US
  9808        9841       8743      67  CHINAMOBILE-CN China Mobile Communicati
 12479        7766       1708     145  UNI2-AS, ES
  7545        5638        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4933       4192      74  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4616        306     604  CABLEONE, US
 18403        4407        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        9841         9774  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7766         7621  UNI2-AS, ES
 16509        9916         6372  AMAZON-02, US
  7545        5638         4964  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4933         4859  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
 18403        4407         4384  FPT-AS-AP FPT Telecom Company, VN
  7155        4167         4078  VIASAT-SP-BACKBONE, US
 11492        4616         4012  CABLEONE, US
  7552        3909         3888  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      /12:297     
/13:577     /14:1169    /15:2050    /16:13271   /17:8260    /18:13761   
/19:24738   /20:44279   /21:51773   /22:111560  /23:99295   /24:579294  
/25:731     /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        6862        7766  UNI2-AS, ES
  8151        6233       12199  UNINET, MX
 11492        3525        4616  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3393        3597  SHAW, CA
  7155        3111        4167  VIASAT-SP-BACKBONE, US
 22773        2585        3488  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2159        2504  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2137        3511  Telmex Colombia S.A., CO
 16509        2122        9916  AMAZON-02, US

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

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

   1:2304      2:1515      3:348       4:6         5:4566      6:164    
   7:6         8:1515      9:1        11:172      12:1454     13:360    
  14:2410     15:318      16:211      17:366      18:766      20:375    
  21:4        22:188      23:6751     24:2719     25:2        27:2543   
  29:19       31:2589     32:48       34:60       35:134      36:2295   
  37:4486     38:7476     39:896      40:122      41:4083     42:2172   
  43:2374     44:314      45:17059    46:4488     47:307      49:1959   
  50:1902     51:576      52:1577     54:313      55:999      56:5      
  57:178      58:2093     59:1252     60:1027     61:2612     62:2681   
  63:1893     64:5518     65:2343     66:4690     67:2990     68:1321   
  69:4095     70:1186     71:583      72:2859     74:2595     75:1558   
  76:618      77:2486     78:1859     79:2518     80:2195     81:2016   
  82:1608     83:1335     84:1659     85:3153     86:859      87:2288   
  88:1251     89:4086     90:679      91:8129     92:2308     93:2702   
  94:3732     95:4191     96:1283     97:316      98:1034     99:742    
 100:72      101:1177    102:3284    103:32619   104:4795    105:677    
 106:957     107:2752    108:1151    109:4139    110:2137    111:3301   
 112:2071    113:1838    114:1795    115:2072    116:1903    117:2646   
 118:2812    119:1975    120:1793    121:1331    122:2698    123:2235   
 124:1629    125:2883    126:32      128:1476    129:937     130:1143   
 131:1836    132:802     133:412     134:1736    135:322     136:1010   
 137:1069    138:2817    139:1542    140:1392    141:1345    142:1574   
 143:1512    144:1015    145:365     146:2056    147:1927    148:2503   
 149:2758    150:1036    151:1329    152:2153    153:525     154:6494   
 155:1451    156:2284    157:1777    158:1152    159:2337    160:2655   
 161:1684    162:3558    163:1708    164:1653    165:2148    166:1173   
 167:1800    168:3924    169:800     170:4867    171:1040    172:3850   
 173:3043    174:893     175:1199    176:3682    177:4717    178:3715   
 179:2191    180:2361    181:3745    182:3429    183:1996    184:2263   
 185:20817   186:4952    187:4502    188:4075    189:4133    190:9418   
 191:1479    192:11006   193:9133    194:7512    195:5300    196:3164   
 197:2558    198:6050    199:7726    200:7980    201:6232    202:10497  
 203:10210   204:4595    205:3761    206:4483    207:3596    208:4159   
 209:5062    210:4664    211:2623    212:4325    213:3429    214:1070   
 215:49      216:6834    217:2989    218:1341    219:581     220:2044   
 221:1033    222:872     223:2247   

End of report



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