[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri May 24 18:02:14 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 25 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:                              951918
    Prefixes after maximum aggregation (per Origin AS):          362006
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      462355
Total ASes present in the Internet Routing Table:                 75825
    Prefixes per ASN:                                             12.55
Origin-only ASes present in the Internet Routing Table:           64977
Origin ASes announcing only one prefix:                           26683
Transit ASes present in the Internet Routing Table:               10848
Transit-only ASes present in the Internet Routing Table:            530
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:              1128
    Number of instances of unregistered ASNs:                      1130
Number of 32-bit ASNs allocated by the RIRs:                      44555
Number of 32-bit ASNs visible in the Routing Table:               36475
Prefixes from 32-bit ASNs in the Routing Table:                  186932
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            735
Number of addresses announced to Internet:                   3027222144
    Equivalent to 180 /8s, 111 /16s and 190 /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:      312842

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

Prefixes being announced by APNIC Region ASes:                   255008
    Total APNIC prefixes after maximum aggregation:               74071
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          247211
    Unique aggregates announced from the APNIC address blocks:   101262
APNIC Region origin ASes present in the Internet Routing Table:   14174
    APNIC Prefixes per ASN:                                       17.44
APNIC Region origin ASes announcing only one prefix:               4325
APNIC Region transit ASes present in the Internet Routing Table:   1906
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9567
Number of APNIC addresses announced to Internet:              761742464
    Equivalent to 45 /8s, 103 /16s and 68 /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:                    276627
    Total ARIN prefixes after maximum aggregation:               124971
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           281377
    Unique aggregates announced from the ARIN address blocks:    133879
ARIN Region origin ASes present in the Internet Routing Table:    19156
    ARIN Prefixes per ASN:                                        14.69
ARIN Region origin ASes announcing only one prefix:                6959
ARIN Region transit ASes present in the Internet Routing Table:    1993
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:              1268025856
    Equivalent to 75 /8s, 148 /16s and 138 /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:                    266394
    Total RIPE prefixes after maximum aggregation:               127048
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           260966
    Unique aggregates announced from the RIPE address blocks:    163744
RIPE Region origin ASes present in the Internet Routing Table:    28617
    RIPE Prefixes per ASN:                                         9.12
RIPE Region origin ASes announcing only one prefix:               12104
RIPE Region transit ASes present in the Internet Routing Table:    3971
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:   11804
Number of RIPE addresses announced to Internet:               712588032
    Equivalent to 42 /8s, 121 /16s and 59 /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:                  121471
    Total LACNIC prefixes after maximum aggregation:              29048
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         119684
    Unique aggregates announced from the LACNIC address blocks:   49775
LACNIC Region origin ASes present in the Internet Routing Table:  11090
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2639
LACNIC Region transit ASes present in the Internet Routing Table:  2422
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:  8985
Number of LACNIC addresses announced to Internet:             177107200
    Equivalent to 10 /8s, 142 /16s and 113 /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:                  31290
    Total AfriNIC prefixes after maximum aggregation:              6173
    AfriNIC Deaggregation factor:                                  5.07
Prefixes being announced from the AfriNIC address blocks:         41945
    Unique aggregates announced from the AfriNIC address blocks:  13189
AfriNIC Region origin ASes present in the Internet Routing Table:  1844
    AfriNIC Prefixes per ASN:                                     22.75
AfriNIC Region origin ASes announcing only one prefix:              656
AfriNIC Region transit ASes present in the Internet Routing Table:  353
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: 1212
Number of AfriNIC addresses announced to Internet:            107238144
    Equivalent to 6 /8s, 100 /16s and 83 /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        9842       8743      67  CHINAMOBILE-CN China Mobile Communicati
  7545        5639        777     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4933       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4420        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3929       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3749        509     260  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3622       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3286       1872      99  VNPT-AS-VN VNPT Corp, VN
 24560        2794        863     374  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        9968      11387    3519  AMAZON-02, US
 11492        4622        307     596  CABLEONE, US
  7155        4167        287      89  VIASAT-SP-BACKBONE, US
  6327        3594       1320      79  SHAW, CA
 22773        3484       3043     235  ASN-CXA-ALL-CCI-22773-RDC, US
   174        3423       8774     865  COGENT-174, US
   749        3223      54904    2475  DNIC-AS-00749, US
 16625        3099       1327    2223  AKAMAI-AS, US
  7018        2841      23661    1793  ATT-INTERNET4, US
   367        2773       3399    1293  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        7760       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3837       3396     133  AKAMAI-ASN1, NL
  9009        3501        300    1744  M247, RO
 12389        2988       2305     902  ROSTELECOM-AS, RU
  8551        2634        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 34984        2341        362     581  TELLCOM-AS, TR
212238        1623        119    1187  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1551       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       12176       3320     489  UNINET, MX
 10620        3509        492     941  Telmex Colombia S.A., CO
 13999        2543        355     665  Mega Cable, S.A. de C.V., MX
 11830        2003        369      64  Instituto Costarricense de Electricidad
 28573        1350       2313     251  Claro NXT Telecomunicacoes Ltda, BR
  3816        1322        789     190  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1189        177     438  Techtel LMDS Comunicaciones Interactiva
  6503        1125        314     478  Axtel, S.A.B. de C.V., MX
  6147        1084        369      22  Telefonica del Peru S.A.A., PE
 26615        1073       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        1548        545      28  RAYA-AS, EG
 24863        1504        389      20  LINKdotNET-AS, EG
 36992        1378       1520     281  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1208         77      61  ORANGE-COTE-IVOIRE, CI
 36935         935        521      42  Vodafone-, EG
  6713         556       1861      35  IAM-AS, MA
 15399         531         56      56  WANANCHI-, KE
 36914         481         82       3  KENET-AS, KE
 37342         467         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       12176       3320     489  UNINET, MX
 16509        9968      11387    3519  AMAZON-02, US
  9808        9842       8743      67  CHINAMOBILE-CN China Mobile Communicati
 12479        7760       1708     145  UNI2-AS, ES
  7545        5639        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        4622        307     596  CABLEONE, US
 18403        4420        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        9842         9775  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7760         7615  UNI2-AS, ES
 16509        9968         6449  AMAZON-02, US
  7545        5639         4965  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        4420         4397  FPT-AS-AP FPT Telecom Company, VN
  7155        4167         4078  VIASAT-SP-BACKBONE, US
 11492        4622         4026  CABLEONE, US
  7552        3929         3908  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-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  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      /11:93      /12:298     
/13:577     /14:1170    /15:2055    /16:13263   /17:8271    /18:13758   
/19:24762   /20:44309   /21:51709   /22:111506  /23:99470   /24:579880  
/25:730     /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        6854        7760  UNI2-AS, ES
  8151        6214       12176  UNINET, MX
 11492        3531        4622  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3390        3594  SHAW, CA
  7155        3111        4167  VIASAT-SP-BACKBONE, US
 22773        2579        3484  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2162        2507  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2138        3509  Telmex Colombia S.A., CO
 16509        2130        9968  AMAZON-02, US

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

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

   1:2316      2:1522      3:350       4:6         5:4571      6:162    
   7:6         8:1516      9:1        11:172      12:1465     13:359    
  14:2410     15:319      16:211      17:367      18:766      20:378    
  21:4        22:188      23:6773     24:2721     25:2        27:2548   
  29:19       31:2576     32:48       34:61       35:134      36:2292   
  37:4463     38:7544     39:896      40:122      41:4100     42:2154   
  43:2366     44:317      45:17131    46:4480     47:306      49:1959   
  50:1913     51:580      52:1586     54:313      55:878      56:5      
  57:178      58:2091     59:1253     60:1027     61:2599     62:2690   
  63:1888     64:5518     65:2346     66:4691     67:2996     68:1320   
  69:4103     70:1184     71:584      72:2873     74:2591     75:1551   
  76:618      77:2478     78:1853     79:2514     80:2195     81:2015   
  82:1615     83:1346     84:1666     85:3150     86:895      87:2289   
  88:1253     89:4062     90:685      91:8124     92:2310     93:2699   
  94:3625     95:4191     96:1275     97:314      98:1034     99:741    
 100:73      101:1179    102:3404    103:32610   104:4779    105:678    
 106:958     107:2764    108:1147    109:4179    110:2145    111:3268   
 112:2068    113:1784    114:1797    115:2075    116:1900    117:2647   
 118:2828    119:1976    120:1802    121:1341    122:2694    123:2233   
 124:1634    125:2885    126:32      128:1468    129:908     130:1147   
 131:1833    132:809     133:412     134:1741    135:322     136:1054   
 137:1069    138:2811    139:1533    140:1378    141:1349    142:1573   
 143:1562    144:1014    145:366     146:2064    147:1943    148:2512   
 149:2753    150:1038    151:1337    152:2161    153:524     154:6614   
 155:1455    156:2290    157:1795    158:1151    159:2336    160:2654   
 161:1693    162:3552    163:1705    164:1653    165:2146    166:1180   
 167:1789    168:3957    169:802     170:4882    171:1047    172:3856   
 173:3044    174:894     175:1218    176:3691    177:4744    178:3708   
 179:2203    180:2362    181:3727    182:3399    183:2004    184:2264   
 185:20814   186:4960    187:4488    188:4075    189:4134    190:9416   
 191:1547    192:11021   193:9108    194:7505    195:5304    196:3183   
 197:2584    198:6049    199:7858    200:8053    201:6230    202:10497  
 203:10185   204:4602    205:3660    206:4502    207:3599    208:4169   
 209:5044    210:4640    211:2618    212:4325    213:3444    214:1070   
 215:49      216:6837    217:3003    218:1341    219:582     220:2046   
 221:1033    222:879     223:2244   

End of report


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