[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jun 14 18:02:23 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 15 Jun, 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:                              953491
    Prefixes after maximum aggregation (per Origin AS):          362907
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      465156
Total ASes present in the Internet Routing Table:                 75909
    Prefixes per ASN:                                             12.56
Origin-only ASes present in the Internet Routing Table:           65040
Origin ASes announcing only one prefix:                           26746
Transit ASes present in the Internet Routing Table:               10869
Transit-only ASes present in the Internet Routing Table:            546
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:              1016
    Number of instances of unregistered ASNs:                      1045
Number of 32-bit ASNs allocated by the RIRs:                      44755
Number of 32-bit ASNs visible in the Routing Table:               36571
Prefixes from 32-bit ASNs in the Routing Table:                  187976
Number of bogon 32-bit ASNs visible in the Routing Table:            70
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            643
Number of addresses announced to Internet:                   3024662656
    Equivalent to 180 /8s, 72 /16s and 176 /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:      312744

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

Prefixes being announced by APNIC Region ASes:                   255143
    Total APNIC prefixes after maximum aggregation:               74266
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          247264
    Unique aggregates announced from the APNIC address blocks:   101142
APNIC Region origin ASes present in the Internet Routing Table:   14209
    APNIC Prefixes per ASN:                                       17.40
APNIC Region origin ASes announcing only one prefix:               4332
APNIC Region transit ASes present in the Internet Routing Table:   1913
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         55
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9603
Number of APNIC addresses announced to Internet:              761490560
    Equivalent to 45 /8s, 99 /16s and 108 /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:                    277321
    Total ARIN prefixes after maximum aggregation:               125440
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           281848
    Unique aggregates announced from the ARIN address blocks:    134801
ARIN Region origin ASes present in the Internet Routing Table:    19130
    ARIN Prefixes per ASN:                                        14.73
ARIN Region origin ASes announcing only one prefix:                6946
ARIN Region transit ASes present in the Internet Routing Table:    1988
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:    4921
Number of ARIN addresses announced to Internet:              1266942208
    Equivalent to 75 /8s, 132 /16s and 1 /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:                    266162
    Total RIPE prefixes after maximum aggregation:               127508
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           260979
    Unique aggregates announced from the RIPE address blocks:    164826
RIPE Region origin ASes present in the Internet Routing Table:    28683
    RIPE Prefixes per ASN:                                         9.10
RIPE Region origin ASes announcing only one prefix:               12153
RIPE Region transit ASes present in the Internet Routing Table:    3988
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          41
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11850
Number of RIPE addresses announced to Internet:               713387520
    Equivalent to 42 /8s, 133 /16s and 110 /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:                  122239
    Total LACNIC prefixes after maximum aggregation:              28812
    LACNIC Deaggregation factor:                                   4.24
Prefixes being announced from the LACNIC address blocks:         120343
    Unique aggregates announced from the LACNIC address blocks:   50302
LACNIC Region origin ASes present in the Internet Routing Table:  11103
    LACNIC Prefixes per ASN:                                      10.84
LACNIC Region origin ASes announcing only one prefix:              2655
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:  8992
Number of LACNIC addresses announced to Internet:             176753408
    Equivalent to 10 /8s, 137 /16s and 11 /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:                  31610
    Total AfriNIC prefixes after maximum aggregation:              6204
    AfriNIC Deaggregation factor:                                  5.10
Prefixes being announced from the AfriNIC address blocks:         42414
    Unique aggregates announced from the AfriNIC address blocks:  13609
AfriNIC Region origin ASes present in the Internet Routing Table:  1840
    AfriNIC Prefixes per ASN:                                     23.05
AfriNIC Region origin ASes announcing only one prefix:              660
AfriNIC Region transit ASes present in the Internet Routing Table:  357
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1205
Number of AfriNIC addresses announced to Internet:            105698304
    Equivalent to 6 /8s, 76 /16s and 212 /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        9843       8744      74  CHINAMOBILE-CN China Mobile Communicati
  7545        5642        777     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4931       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4178        347      23  UNASSIGNED
  7552        3945       1331      21  UNASSIGNED
  9498        3779        510     262  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3593       1043      63  UNASSIGNED
 45899        3280       1857     105  UNASSIGNED
 24560        2823        863     400  UNASSIGNED
  4766        2290      11522     578  UNASSIGNED

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       10017      11403    3586  AMAZON-02, US
 11492        4639        308     550  CABLEONE, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
  6327        3594       1320      79  SHAW, CA
   174        3465       8782     872  COGENT-174, US
 22773        3461       3038     216  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3251      54901    2503  UNASSIGNED
 16625        3158       1335    2228  AKAMAI-AS, US
  7018        2868      23667    1805  ATT-INTERNET4, US
396982        2765       3634     412  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        7731       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3831       3396     133  AKAMAI-ASN1, NL
  9009        3597        306    1818  M247, RO
 12389        2988       2304     898  ROSTELECOM-AS, RU
 34984        2347        361     577  TELLCOM-AS, TR
  8551        1773        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
212238        1690        123    1229  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1508       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       12162       3324     501  UNINET, MX
 10620        3518        492     938  Telmex Colombia S.A., CO
 13999        2545        354     672  Mega Cable, S.A. de C.V., MX
 11830        2003        369      64  Instituto Costarricense de Electricidad
 28573        1344       2311     258  Claro NXT Telecomunicacoes Ltda, BR
  3816        1323        784     191  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1251        278      33  Techtel LMDS Comunicaciones Interactiva
  6503        1128        314     478  Axtel, S.A.B. de C.V., MX
  6147        1092        369      22  Telefonica del Peru S.A.A., PE
 26615        1076       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
 24863        1613        389      16  LINKdotNET-AS, EG
 24835        1540        593      29  RAYA-AS, EG
 36992        1380       1520     283  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1219         77      73  ORANGE-COTE-IVOIRE, CI
 36935         939        521      43  Vodafone-, EG
  6713         556       1861      35  IAM-AS, MA
 15399         527         56      56  WANANCHI-, KE
 36914         485         82       3  KENET-AS, KE
 37342         468         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       12162       3324     501  UNINET, MX
 16509       10017      11403    3586  AMAZON-02, US
  9808        9843       8744      74  CHINAMOBILE-CN China Mobile Communicati
 12479        7731       1708     145  UNI2-AS, ES
  7545        5642        777     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4931       4192      74  ERX-CERNET-BKB China Education and Rese
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 11492        4639        308     550  CABLEONE, US
 18403        4178        347      23  UNASSIGNED
  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        9843         9769  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7731         7586  UNI2-AS, ES
 16509       10017         6431  AMAZON-02, US
  7545        5642         4969  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4931         4857  ERX-CERNET-BKB China Education and Research Net
 39891        4758         4698  ALJAWWALSTC-AS, SA
 18403        4178         4155  UNASSIGNED
 11492        4639         4089  CABLEONE, US
  7155        4166         4078  VIASAT-SP-BACKBONE, US
  7552        3945         3924  UNASSIGNED

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-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
     54338  UNALLOCATED  8.33.241.0/24             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  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.167.48.0/24       Origin:     23379  UNASSIGNED
23.167.48.0/24      Transit:       174  COGENT-174, US
23.170.224.0/24      Origin:     30168  UNASSIGNED
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       /9:14      /10:37      /11:93      /12:297     
/13:573     /14:1166    /15:2055    /16:13253   /17:8262    /18:13758   
/19:24710   /20:44311   /21:51871   /22:111751  /23:99879   /24:580703  
/25:742     /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        6819        7731  UNI2-AS, ES
  8151        6218       12162  UNINET, MX
 11492        3546        4639  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3390        3594  SHAW, CA
  7155        3111        4166  VIASAT-SP-BACKBONE, US
 22773        2569        3461  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2163        2505  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2147        3518  Telmex Colombia S.A., CO
 16509        2135       10017  AMAZON-02, US

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

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

   1:2313      2:1534      3:348       4:6         5:4564      6:160    
   7:6         8:1517      9:1        11:172      12:1455     13:357    
  14:2411     15:316      16:217      17:369      18:768      20:378    
  21:4        22:188      23:6852     24:2705     25:2        27:2557   
  29:19       31:2575     32:48       34:63       35:136      36:2303   
  37:4473     38:7652     39:897      40:139      41:4138     42:2036   
  43:2376     44:324      45:17162    46:4499     47:305      49:1974   
  50:1885     51:579      52:1575     54:314      55:915      56:8      
  57:203      58:2153     59:1255     60:1034     61:2602     62:2722   
  63:1884     64:5487     65:2301     66:4630     67:2992     68:1304   
  69:4105     70:1176     71:571      72:2878     74:2600     75:1545   
  76:625      77:2490     78:1864     79:1782     80:2181     81:1991   
  82:1626     83:1359     84:1685     85:3173     86:916      87:2303   
  88:1224     89:4123     90:678      91:8139     92:2316     93:2713   
  94:3734     95:4196     96:1278     97:316      98:1034     99:740    
 100:73      101:1173    102:3493    103:32398   104:4821    105:680    
 106:1001    107:2610    108:1150    109:4041    110:2140    111:3260   
 112:2060    113:1801    114:1821    115:2075    116:1900    117:2648   
 118:2792    119:1989    120:1802    121:1363    122:2694    123:2243   
 124:1623    125:2880    126:32      128:1459    129:931     130:1155   
 131:1845    132:811     133:412     134:1733    135:323     136:1113   
 137:1077    138:2831    139:1530    140:1389    141:1360    142:1658   
 143:1593    144:1012    145:372     146:2084    147:1980    148:2516   
 149:2773    150:1033    151:1354    152:2218    153:523     154:6879   
 155:1495    156:2279    157:1850    158:1158    159:2320    160:2709   
 161:1702    162:3573    163:1712    164:1662    165:2161    166:1278   
 167:1806    168:4032    169:800     170:4910    171:1044    172:3864   
 173:3062    174:894     175:1230    176:3475    177:4787    178:3676   
 179:2228    180:2407    181:3766    182:3360    183:1983    184:2263   
 185:20848   186:4986    187:4493    188:4066    189:4274    190:9445   
 191:1521    192:11021   193:9148    194:7519    195:5321    196:3177   
 197:2598    198:6052    199:7931    200:8080    201:6332    202:10464  
 203:10209   204:4590    205:3680    206:4470    207:3606    208:4166   
 209:5070    210:4648    211:2621    212:4325    213:3493    214:1061   
 215:49      216:6777    217:3024    218:1341    219:579     220:2033   
 221:1038    222:862     223:2249   

End of report


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