[afnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Aug 16 18:02:25 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 17 Aug, 2024

  IPv4 BGP Table (Global) as seen at Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined:                              957059
    Prefixes after maximum aggregation (per Origin AS):          364876
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      465009
Total ASes present in the Internet Routing Table:                 76094
    Prefixes per ASN:                                             12.58
Origin-only ASes present in the Internet Routing Table:           65136
Origin ASes announcing only one prefix:                           26782
Transit ASes present in the Internet Routing Table:               10958
Transit-only ASes present in the Internet Routing Table:            529
Average AS path length visible in the Internet Routing Table:       5.3
    Max AS path length visible:                                      85
    Max AS path prepend of ASN (152107)                              80
Prefixes from unregistered ASNs in the Routing Table:               971
    Number of instances of unregistered ASNs:                       987
Number of 32-bit ASNs allocated by the RIRs:                      45195
Number of 32-bit ASNs visible in the Routing Table:               36917
Prefixes from 32-bit ASNs in the Routing Table:                  191413
Number of bogon 32-bit ASNs visible in the Routing Table:            78
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            544
Number of addresses announced to Internet:                   3034398592
    Equivalent to 180 /8s, 221 /16s and 63 /24s
    Percentage of available address space announced:               82.0
    Percentage of allocated address space announced:               82.0
    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:      312794

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

Prefixes being announced by APNIC Region ASes:                   257000
    Total APNIC prefixes after maximum aggregation:               75269
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          248904
    Unique aggregates announced from the APNIC address blocks:   102378
APNIC Region origin ASes present in the Internet Routing Table:   14323
    APNIC Prefixes per ASN:                                       17.38
APNIC Region origin ASes announcing only one prefix:               4356
APNIC Region transit ASes present in the Internet Routing Table:   1928
Average APNIC Region AS path length visible:                        5.6
    Max APNIC Region AS path length visible:                         85
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9729
Number of APNIC addresses announced to Internet:              762099072
    Equivalent to 45 /8s, 108 /16s and 181 /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:                    278688
    Total ARIN prefixes after maximum aggregation:               125781
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           282881
    Unique aggregates announced from the ARIN address blocks:    134380
ARIN Region origin ASes present in the Internet Routing Table:    19128
    ARIN Prefixes per ASN:                                        14.79
ARIN Region origin ASes announcing only one prefix:                6949
ARIN Region transit ASes present in the Internet Routing Table:    1994
Average ARIN Region AS path length visible:                         4.7
    Max ARIN Region AS path length visible:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4964
Number of ARIN addresses announced to Internet:              1266146560
    Equivalent to 75 /8s, 119 /16s and 221 /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:                    266573
    Total RIPE prefixes after maximum aggregation:               128246
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           262332
    Unique aggregates announced from the RIPE address blocks:    166066
RIPE Region origin ASes present in the Internet Routing Table:    28701
    RIPE Prefixes per ASN:                                         9.14
RIPE Region origin ASes announcing only one prefix:               12121
RIPE Region transit ASes present in the Internet Routing Table:    4006
Average RIPE Region AS path length visible:                         5.5
    Max RIPE Region AS path length visible:                          44
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11944
Number of RIPE addresses announced to Internet:               722970624
    Equivalent to 43 /8s, 23 /16s and 168 /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:                  122078
    Total LACNIC prefixes after maximum aggregation:              28658
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         119945
    Unique aggregates announced from the LACNIC address blocks:   47738
LACNIC Region origin ASes present in the Internet Routing Table:  11153
    LACNIC Prefixes per ASN:                                      10.75
LACNIC Region origin ASes announcing only one prefix:              2680
LACNIC Region transit ASes present in the Internet Routing Table:  2453
Average LACNIC Region AS path length visible:                       5.9
    Max LACNIC Region AS path length visible:                        61
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  9047
Number of LACNIC addresses announced to Internet:             178126336
    Equivalent to 10 /8s, 157 /16s and 254 /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:                  31749
    Total AfriNIC prefixes after maximum aggregation:              6282
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         42453
    Unique aggregates announced from the AfriNIC address blocks:  13993
AfriNIC Region origin ASes present in the Internet Routing Table:  1874
    AfriNIC Prefixes per ASN:                                     22.65
AfriNIC Region origin ASes announcing only one prefix:              676
AfriNIC Region transit ASes present in the Internet Routing Table:  364
Average AfriNIC Region AS path length visible:                      6.0
    Max AfriNIC Region AS path length visible:                       39
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1233
Number of AfriNIC addresses announced to Internet:            104754688
    Equivalent to 6 /8s, 62 /16s and 110 /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        9904       8747      80  CHINAMOBILE-CN China Mobile Communication
  7545        5696        841     659  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4937       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4215        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3951       1331      22  VIETEL-AS-AP Viettel Group, VN
  9498        3788        508     260  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3649       1044      67  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3245       1841     105  VNPT-AS-VN VNPT Corp, VN
 24560        2815        856     451  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2279      11520     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       10471      11565    3808  AMAZON-02, US
 11492        4628        308     547  CABLEONE, US
  7155        4167        287      89  VIASAT-SP-BACKBONE, US
   174        3919       8784     905  COGENT-174, US
  6327        3600       1320      79  SHAW, CA
 22773        3419       3035     186  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3255      54897    2507  DNIC-AS-00749, US
 16625        3078       1285    2158  AKAMAI-AS, US
  7018        2942      23674    1851  ATT-INTERNET4, US
396982        2778       3567     416  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        7697       1708     145  UNI2-AS, ES
 39891        4539        273      57  ALJAWWALSTC-AS, SA
 20940        3802       3396     133  AKAMAI-ASN1, NL
  9009        3660        312    1855  M247, RO
 12389        2935       2301     886  ROSTELECOM-AS, RU
 34984        2331        359     585  TELLCOM-AS, TR
  8551        1779        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Internet 
212238        1743        125    1276  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1567       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       11820       3292     510  UNINET, MX
 10620        3534        493     929  Telmex Colombia S.A., CO
 13999        2554        629      22  Mega Cable, S.A. de C.V., MX
 11830        2007        369      64  Instituto Costarricense de Electricidad y
 28573        1343       2310     257  Claro NXT Telecomunicacoes Ltda, BR
  3816        1319        777     204  COLOMBIA TELECOMUNICACIONES S.A. ESP, CO
  6503        1121        313     480  Axtel, S.A.B. de C.V., MX
 22884        1068         98     368  TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
 26615        1062       2503      53  TIM SA, BR
  6147        1034        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        1611        389      16  LINKdotNET-AS, EG
 24835        1554        593      29  RAYA-AS, EG
 36992        1411       1519     283  ETISALAT-MISR, EG
 29571        1324         84      78  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         939        521      42  Vodafone-, EG
  6713         555       1861      35  IAM-AS, MA
 36914         551         82       3  KENET-AS, KE
 15399         512         56      57  WANANCHI-, KE
 24757         436         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       11820       3292     510  UNINET, MX
 16509       10471      11565    3808  AMAZON-02, US
  9808        9904       8747      80  CHINAMOBILE-CN China Mobile Communication
 12479        7697       1708     145  UNI2-AS, ES
  7545        5696        841     659  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4937       4192      74  ERX-CERNET-BKB China Education and Resear
 11492        4628        308     547  CABLEONE, US
 39891        4539        273      57  ALJAWWALSTC-AS, SA
 18403        4215        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        9904         9824  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7697         7552  UNI2-AS, ES
 16509       10471         6663  AMAZON-02, US
  7545        5696         5037  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4937         4863  ERX-CERNET-BKB China Education and Research Net
 39891        4539         4482  ALJAWWALSTC-AS, SA
 18403        4215         4192  FPT-AS-AP FPT Telecom Company, VN
 11492        4628         4081  CABLEONE, US
  7155        4167         4078  VIASAT-SP-BACKBONE, US
  7552        3951         3929  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
23.130.240.0/24      Origin:     14315  1GSERVERS, US
23.130.240.0/24     Transit:       174  COGENT-174, US
23.137.192.0/24      Origin:     31798  DATACITY, CA
23.137.192.0/24     Transit:     21949  BEANFIELD, CA
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

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      /11:93      /12:294     
/13:577     /14:1165    /15:2059    /16:13239   /17:8248    /18:13714   
/19:24699   /20:44329   /21:51937   /22:111803  /23:100298  /24:583821  
/25:714     /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        6780        7697  UNI2-AS, ES
  8151        5938       11820  UNINET, MX
 11492        3539        4628  CABLEONE, US
  6327        3396        3600  SHAW, CA
 39891        3361        4539  ALJAWWALSTC-AS, SA
  7155        3111        4167  VIASAT-SP-BACKBONE, US
 22773        2558        3419  ASN-CXA-ALL-CCI-22773-RDC, US
 10620        2163        3534  Telmex Colombia S.A., CO
 30036        2155        2493  MEDIACOM-ENTERPRISE-BUSINESS, US
 16509        2133       10471  AMAZON-02, US

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

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

   1:2310      2:1545      3:413       4:6         5:4398      6:162    
   7:6         8:1526      9:1        11:172      12:1430     13:356    
  14:2399     15:325      16:255      17:365      18:859      20:407    
  21:4        22:188      23:6815     24:2696     25:2        27:2561   
  29:19       31:2664     32:47       34:66       35:139      36:2356   
  37:4528     38:8373     39:914      40:146      41:4112     42:2001   
  43:2445     44:331      45:17474    46:4584     47:300      49:2031   
  50:1844     51:579      52:1578     54:316      55:954      56:8      
  57:213      58:2236     59:1265     60:1060     61:2666     62:2768   
  63:1857     64:5450     65:2274     66:4642     67:3012     68:1345   
  69:4034     70:1154     71:555      72:2854     74:2649     75:1561   
  76:617      77:2509     78:1855     79:1779     80:2186     81:2032   
  82:1663     83:1372     84:1713     85:3164     86:971      87:2304   
  88:1251     89:4227     90:692      91:8197     92:2419     93:2718   
  94:3749     95:4218     96:1274     97:316      98:1045     99:736    
 100:73      101:1171    102:3334    103:32328   104:4527    105:696    
 106:992     107:2369    108:1169    109:4091    110:2144    111:3287   
 112:2067    113:1815    114:1856    115:2096    116:1976    117:2672   
 118:2832    119:1982    120:1824    121:1408    122:2696    123:2286   
 124:1626    125:2864    126:64      128:1400    129:946     130:1202   
 131:1868    132:822     133:428     134:1470    135:312     136:1135   
 137:1104    138:2857    139:1531    140:1441    141:1455    142:1670   
 143:1642    144:1027    145:362     146:2116    147:2038    148:2538   
 149:2821    150:1060    151:1351    152:2236    153:501     154:6555   
 155:1426    156:2411    157:1805    158:1184    159:2449    160:2995   
 161:1700    162:3558    163:1748    164:1689    165:2155    166:1282   
 167:1852    168:4071    169:809     170:4942    171:1049    172:3899   
 173:3080    174:902     175:1253    176:3468    177:4645    178:3647   
 179:2208    180:2455    181:3824    182:3333    183:1977    184:2261   
 185:20974   186:4997    187:4347    188:4110    189:4134    190:9503   
 191:1511    192:11087   193:9237    194:7490    195:5321    196:3212   
 197:2657    198:6022    199:8047    200:8104    201:6246    202:10501  
 203:10409   204:4563    205:3698    206:4514    207:3643    208:4176   
 209:5085    210:4751    211:2637    212:4413    213:3640    214:1064   
 215:49      216:6719    217:2943    218:1400    219:602     220:2030   
 221:1046    222:866     223:2251   

End of report



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