[afnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Aug 2 18:02:22 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 03 Aug, 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:                              954939
    Prefixes after maximum aggregation (per Origin AS):          364020
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      464598
Total ASes present in the Internet Routing Table:                 75975
    Prefixes per ASN:                                             12.57
Origin-only ASes present in the Internet Routing Table:           65098
Origin ASes announcing only one prefix:                           26727
Transit ASes present in the Internet Routing Table:               10877
Transit-only ASes present in the Internet Routing Table:            526
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      84
    Max AS path prepend of ASN (152107)                              80
Prefixes from unregistered ASNs in the Routing Table:               977
    Number of instances of unregistered ASNs:                       984
Number of 32-bit ASNs allocated by the RIRs:                      45076
Number of 32-bit ASNs visible in the Routing Table:               36793
Prefixes from 32-bit ASNs in the Routing Table:                  189956
Number of bogon 32-bit ASNs visible in the Routing Table:            48
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            524
Number of addresses announced to Internet:                   3026799488
    Equivalent to 180 /8s, 105 /16s and 75 /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:      312444

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

Prefixes being announced by APNIC Region ASes:                   256052
    Total APNIC prefixes after maximum aggregation:               74944
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          247961
    Unique aggregates announced from the APNIC address blocks:   102061
APNIC Region origin ASes present in the Internet Routing Table:   14282
    APNIC Prefixes per ASN:                                       17.36
APNIC Region origin ASes announcing only one prefix:               4343
APNIC Region transit ASes present in the Internet Routing Table:   1903
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         84
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9692
Number of APNIC addresses announced to Internet:              762440064
    Equivalent to 45 /8s, 113 /16s and 233 /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:                    278392
    Total ARIN prefixes after maximum aggregation:               125472
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           282728
    Unique aggregates announced from the ARIN address blocks:    134945
ARIN Region origin ASes present in the Internet Routing Table:    19113
    ARIN Prefixes per ASN:                                        14.79
ARIN Region origin ASes announcing only one prefix:                6940
ARIN Region transit ASes present in the Internet Routing Table:    1984
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:    4945
Number of ARIN addresses announced to Internet:              1266744064
    Equivalent to 75 /8s, 128 /16s and 251 /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:                    265974
    Total RIPE prefixes after maximum aggregation:               128009
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           261761
    Unique aggregates announced from the RIPE address blocks:    165546
RIPE Region origin ASes present in the Internet Routing Table:    28682
    RIPE Prefixes per ASN:                                         9.13
RIPE Region origin ASes announcing only one prefix:               12123
RIPE Region transit ASes present in the Internet Routing Table:    3987
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          42
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11913
Number of RIPE addresses announced to Internet:               714574080
    Equivalent to 42 /8s, 151 /16s and 137 /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:                  122048
    Total LACNIC prefixes after maximum aggregation:              28675
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         120042
    Unique aggregates announced from the LACNIC address blocks:   47895
LACNIC Region origin ASes present in the Internet Routing Table:  11119
    LACNIC Prefixes per ASN:                                      10.80
LACNIC Region origin ASes announcing only one prefix:              2654
LACNIC Region transit ASes present in the Internet Routing Table:  2444
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:  9016
Number of LACNIC addresses announced to Internet:             177989120
    Equivalent to 10 /8s, 155 /16s and 230 /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:                  31496
    Total AfriNIC prefixes after maximum aggregation:              6272
    AfriNIC Deaggregation factor:                                  5.02
Prefixes being announced from the AfriNIC address blocks:         41923
    Unique aggregates announced from the AfriNIC address blocks:  13717
AfriNIC Region origin ASes present in the Internet Routing Table:  1863
    AfriNIC Prefixes per ASN:                                     22.50
AfriNIC Region origin ASes announcing only one prefix:              667
AfriNIC Region transit ASes present in the Internet Routing Table:  362
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: 1227
Number of AfriNIC addresses announced to Internet:            104755712
    Equivalent to 6 /8s, 62 /16s and 114 /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        9869       8747      79  CHINAMOBILE-CN China Mobile Communication
  7545        5662        840     662  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4212        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3964       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3792        511     262  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3637       1044      66  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3242       1841     105  VNPT-AS-VN VNPT Corp, VN
 24560        2818        860     442  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2274      11520     574  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       10291      11567    3673  AMAZON-02, US
 11492        4624        307     545  CABLEONE, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
   174        3779       8787     881  COGENT-174, US
  6327        3595       1320      79  SHAW, CA
 22773        3423       3035     188  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3258      54898    2510  DNIC-AS-00749, US
 16625        3126       1317    2189  AKAMAI-AS, US
  7018        2954      23678    1856  ATT-INTERNET4, US
396982        2771       3597     418  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        7712       1708     145  UNI2-AS, ES
 39891        4521        271      59  ALJAWWALSTC-AS, SA
 20940        3837       3396     133  AKAMAI-ASN1, NL
  9009        3569        305    1842  M247, RO
 12389        2936       2301     886  ROSTELECOM-AS, RU
 34984        2333        361     585  TELLCOM-AS, TR
  8551        1782        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Internet 
212238        1745        125    1277  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1556       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       11826       3290     513  UNINET, MX
 10620        3531        493     934  Telmex Colombia S.A., CO
 13999        2554        619      38  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        1313        768     200  COLOMBIA TELECOMUNICACIONES S.A. ESP, CO
  6503        1126        314     483  Axtel, S.A.B. de C.V., MX
 26615        1076       2503      53  TIM SA, BR
 22884        1065         97     368  TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
  6147        1044        369      22  Telefonica del Peru S.A.A., PE

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        1615        389      16  LINKdotNET-AS, EG
 24835        1555        593      29  RAYA-AS, EG
 36992        1382       1520     280  ETISALAT-MISR, EG
 29571        1303         83      76  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         937        521      42  Vodafone-, EG
  6713         556       1861      35  IAM-AS, MA
 36914         553         82       3  KENET-AS, KE
 37342         431         32       1  MOVITEL, MZ
 24757         427         73       5  EthioNet-AS, ET

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       11826       3290     513  UNINET, MX
 16509       10291      11567    3673  AMAZON-02, US
  9808        9869       8747      79  CHINAMOBILE-CN China Mobile Communication
 12479        7712       1708     145  UNI2-AS, ES
  7545        5662        840     662  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935       4192      74  ERX-CERNET-BKB China Education and Resear
 11492        4624        307     545  CABLEONE, US
 39891        4521        271      59  ALJAWWALSTC-AS, SA
 18403        4212        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        9869         9790  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7712         7567  UNI2-AS, ES
 16509       10291         6618  AMAZON-02, US
  7545        5662         5000  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935         4861  ERX-CERNET-BKB China Education and Research Net
 39891        4521         4462  ALJAWWALSTC-AS, SA
 18403        4212         4189  FPT-AS-AP FPT Telecom Company, VN
 11492        4624         4079  CABLEONE, US
  7155        4166         4078  VIASAT-SP-BACKBONE, US
  7552        3964         3943  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     
/13:575     /14:1163    /15:2058    /16:13185   /17:8273    /18:13727   
/19:24684   /20:44301   /21:51884   /22:111600  /23:100138  /24:582173  
/25:723     /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        6798        7712  UNI2-AS, ES
  8151        5925       11826  UNINET, MX
 11492        3535        4624  CABLEONE, US
  6327        3392        3595  SHAW, CA
 39891        3361        4521  ALJAWWALSTC-AS, SA
  7155        3111        4166  VIASAT-SP-BACKBONE, US
 22773        2560        3423  ASN-CXA-ALL-CCI-22773-RDC, US
 10620        2160        3531  Telmex Colombia S.A., CO
 30036        2157        2496  MEDIACOM-ENTERPRISE-BUSINESS, US
 16509        2150       10291  AMAZON-02, US

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

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

   1:2303      2:1545      3:392       4:6         5:4374      6:162    
   7:6         8:1519      9:1        11:172      12:1433     13:365    
  14:2390     15:324      16:224      17:360      18:784      20:401    
  21:4        22:188      23:6925     24:2695     25:2        27:2562   
  29:19       31:2624     32:47       34:65       35:136      36:2354   
  37:4493     38:8146     39:912      40:147      41:4088     42:2008   
  43:2427     44:332      45:17380    46:4588     47:299      49:1986   
  50:1855     51:576      52:1579     54:319      55:948      56:8      
  57:215      58:2233     59:1260     60:1059     61:2662     62:2775   
  63:1853     64:5426     65:2270     66:4633     67:3009     68:1333   
  69:4015     70:1157     71:557      72:2860     74:2607     75:1558   
  76:618      77:2495     78:1855     79:1794     80:2194     81:2015   
  82:1665     83:1367     84:1701     85:3152     86:939      87:2297   
  88:1250     89:4201     90:698      91:8184     92:2360     93:2717   
  94:3752     95:4212     96:1278     97:316      98:1040     99:739    
 100:73      101:1167    102:3310    103:32303   104:4806    105:693    
 106:1011    107:2501    108:1163    109:4059    110:2119    111:3226   
 112:2062    113:1816    114:1825    115:2044    116:1971    117:2643   
 118:2810    119:1976    120:1822    121:1354    122:2705    123:2281   
 124:1626    125:2862    126:64      128:1404    129:943     130:1185   
 131:1851    132:823     133:415     134:1717    135:308     136:1124   
 137:1103    138:2855    139:1527    140:1423    141:1383    142:1671   
 143:1621    144:1023    145:360     146:2107    147:2019    148:2535   
 149:2762    150:1028    151:1340    152:2242    153:523     154:6450   
 155:1430    156:2276    157:1903    158:1147    159:2434    160:2862   
 161:1712    162:3531    163:1719    164:1682    165:2139    166:1265   
 167:1832    168:4044    169:807     170:4903    171:1047    172:3885   
 173:3072    174:901     175:1240    176:3461    177:4582    178:3650   
 179:2183    180:2425    181:3791    182:3330    183:1982    184:2263   
 185:20945   186:4937    187:4395    188:4096    189:4185    190:9487   
 191:1526    192:11053   193:9210    194:7490    195:5308    196:3211   
 197:2576    198:6059    199:8035    200:8168    201:6412    202:10531  
 203:10346   204:4567    205:3682    206:4484    207:3617    208:4164   
 209:5034    210:4731    211:2631    212:4398    213:3628    214:1069   
 215:49      216:6718    217:2935    218:1399    219:600     220:2025   
 221:1035    222:864     223:2247   

End of report



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