[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Jun 7 15:02:18 -03 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 en lists.apnic.net.

For historical data, please see https://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

IPv4 Routing Table Report   04:00 +10GMT Sat 08 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:                              952310
    Prefixes after maximum aggregation (per Origin AS):          362531
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      464792
Total ASes present in the Internet Routing Table:                 75901
    Prefixes per ASN:                                             12.55
Origin-only ASes present in the Internet Routing Table:           65054
Origin ASes announcing only one prefix:                           26721
Transit ASes present in the Internet Routing Table:               10847
Transit-only ASes present in the Internet Routing Table:            540
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:               997
    Number of instances of unregistered ASNs:                       999
Number of 32-bit ASNs allocated by the RIRs:                      44691
Number of 32-bit ASNs visible in the Routing Table:               36556
Prefixes from 32-bit ASNs in the Routing Table:                  187335
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:            605
Number of addresses announced to Internet:                   3024734848
    Equivalent to 180 /8s, 73 /16s and 202 /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:      312161

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

Prefixes being announced by APNIC Region ASes:                   255145
    Total APNIC prefixes after maximum aggregation:               74211
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          247236
    Unique aggregates announced from the APNIC address blocks:   101269
APNIC Region origin ASes present in the Internet Routing Table:   14205
    APNIC Prefixes per ASN:                                       17.40
APNIC Region origin ASes announcing only one prefix:               4335
APNIC Region transit ASes present in the Internet Routing Table:   1910
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:   9598
Number of APNIC addresses announced to Internet:              761679488
    Equivalent to 45 /8s, 102 /16s and 78 /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:                    276985
    Total ARIN prefixes after maximum aggregation:               125335
    ARIN Deaggregation factor:                                     2.21
Prefixes being announced from the ARIN address blocks:           281544
    Unique aggregates announced from the ARIN address blocks:    134667
ARIN Region origin ASes present in the Internet Routing Table:    19149
    ARIN Prefixes per ASN:                                        14.70
ARIN Region origin ASes announcing only one prefix:                6955
ARIN Region transit ASes present in the Internet Routing Table:    1992
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:    4922
Number of ARIN addresses announced to Internet:              1267199488
    Equivalent to 75 /8s, 135 /16s and 238 /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:                    265936
    Total RIPE prefixes after maximum aggregation:               127349
    RIPE Deaggregation factor:                                     2.09
Prefixes being announced from the RIPE address blocks:           260652
    Unique aggregates announced from the RIPE address blocks:    164615
RIPE Region origin ASes present in the Internet Routing Table:    28662
    RIPE Prefixes per ASN:                                         9.09
RIPE Region origin ASes announcing only one prefix:               12129
RIPE Region transit ASes present in the Internet Routing Table:    3978
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:   11829
Number of RIPE addresses announced to Internet:               713245440
    Equivalent to 42 /8s, 131 /16s and 67 /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:                  121695
    Total LACNIC prefixes after maximum aggregation:              28784
    LACNIC Deaggregation factor:                                   4.23
Prefixes being announced from the LACNIC address blocks:         119889
    Unique aggregates announced from the LACNIC address blocks:   50118
LACNIC Region origin ASes present in the Internet Routing Table:  11107
    LACNIC Prefixes per ASN:                                      10.79
LACNIC Region origin ASes announcing only one prefix:              2640
LACNIC Region transit ASes present in the Internet Routing Table:  2404
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:  8998
Number of LACNIC addresses announced to Internet:             176707584
    Equivalent to 10 /8s, 136 /16s and 88 /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:                  31552
    Total AfriNIC prefixes after maximum aggregation:              6201
    AfriNIC Deaggregation factor:                                  5.09
Prefixes being announced from the AfriNIC address blocks:         42384
    Unique aggregates announced from the AfriNIC address blocks:  13632
AfriNIC Region origin ASes present in the Internet Routing Table:  1843
    AfriNIC Prefixes per ASN:                                     23.00
AfriNIC Region origin ASes announcing only one prefix:              662
AfriNIC Region transit ASes present in the Internet Routing Table:  354
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1209
Number of AfriNIC addresses announced to Internet:            105583360
    Equivalent to 6 /8s, 75 /16s and 19 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  9808        9841       8744      71  CHINAMOBILE-CN China Mobile Communicati
  7545        5636        776     669  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4931       4192      74  ERX-CERNET-BKB China Education and Rese
 18403        4216        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3937       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3779        510     262  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3619       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3277       1857     103  VNPT-AS-VN VNPT Corp, VN
 24560        2795        862     398  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2290      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       10014      11398    3538  AMAZON-02, US
 11492        4627        307     586  CABLEONE, US
  7155        4167        287      89  VIASAT-SP-BACKBONE, US
  6327        3594       1320      79  SHAW, CA
 22773        3472       3038     218  ASN-CXA-ALL-CCI-22773-RDC, US
   174        3440       8782     874  COGENT-174, US
   749        3250      54901    2502  DNIC-AS-00749, US
 16625        3091       1323    2223  AKAMAI-AS, US
  7018        2874      23667    1811  ATT-INTERNET4, US
396982        2760       3633     408  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        7730       1708     145  UNI2-AS, ES
 39891        4758        286      60  ALJAWWALSTC-AS, SA
 20940        3831       3396     133  AKAMAI-ASN1, NL
  9009        3529        302    1763  M247, RO
 12389        2989       2304     899  ROSTELECOM-AS, RU
 34984        2342        361     576  TELLCOM-AS, TR
  8551        1764        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
212238        1685        123    1223  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1520       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       12163       3322     500  UNINET, MX
 10620        3514        492     936  Telmex Colombia S.A., CO
 13999        2547        355     668  Mega Cable, S.A. de C.V., MX
 11830        2003        369      64  Instituto Costarricense de Electricidad
 28573        1346       2311     255  Claro NXT Telecomunicacoes Ltda, BR
  3816        1322        784     196  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1246        278      33  Techtel LMDS Comunicaciones Interactiva
  6503        1130        315     480  Axtel, S.A.B. de C.V., MX
  6147        1089        369      22  Telefonica del Peru S.A.A., PE
 26615        1072       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        1586        389      20  LINKdotNET-AS, EG
 24835        1557        593      29  RAYA-AS, EG
 36992        1376       1520     281  ETISALAT-MISR, EG
 36903        1248        554      95  MT-MPLS, MA
 29571        1216         77      75  ORANGE-COTE-IVOIRE, CI
 36935         933        521      43  Vodafone-, EG
  6713         556       1861      35  IAM-AS, MA
 15399         532         56      56  WANANCHI-, KE
 36914         483         82       3  KENET-AS, KE
 37342         470         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       12163       3322     500  UNINET, MX
 16509       10014      11398    3538  AMAZON-02, US
  9808        9841       8744      71  CHINAMOBILE-CN China Mobile Communicati
 12479        7730       1708     145  UNI2-AS, ES
  7545        5636        776     669  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        4627        307     586  CABLEONE, US
 18403        4216        347      23  FPT-AS-AP FPT Telecom Company, VN
  7155        4167        287      89  VIASAT-SP-BACKBONE, US

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  9808        9841         9770  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7730         7585  UNI2-AS, ES
 16509       10014         6476  AMAZON-02, US
  7545        5636         4967  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        4216         4193  FPT-AS-AP FPT Telecom Company, VN
  7155        4167         4078  VIASAT-SP-BACKBONE, US
 11492        4627         4041  CABLEONE, US
  7552        3937         3916  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
     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
     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
23.180.120.0/24      Origin:    215274  UHQ, US
23.180.120.0/24     Transit:    212027  PEBBLEHOST, GB
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      /12:297     
/13:573     /14:1167    /15:2055    /16:13254   /17:8252    /18:13760   
/19:24700   /20:44263   /21:51749   /22:111588  /23:99629   /24:580134  
/25:729     /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        6824        7730  UNI2-AS, ES
  8151        6219       12163  UNINET, MX
 11492        3536        4627  CABLEONE, US
 39891        3440        4758  ALJAWWALSTC-AS, SA
  6327        3390        3594  SHAW, CA
  7155        3111        4167  VIASAT-SP-BACKBONE, US
 22773        2579        3472  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2160        2500  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2143        3514  Telmex Colombia S.A., CO
 16509        2126       10014  AMAZON-02, US

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

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

   1:2308      2:1527      3:346       4:6         5:4553      6:162    
   7:6         8:1514      9:1        11:172      12:1455     13:362    
  14:2413     15:319      16:217      17:369      18:763      20:383    
  21:4        22:188      23:6848     24:2714     25:2        27:2547   
  29:19       31:2583     32:48       34:63       35:136      36:2298   
  37:4451     38:7610     39:897      40:130      41:4098     42:2052   
  43:2371     44:322      45:17136    46:4491     47:307      49:1977   
  50:1915     51:577      52:1583     54:313      55:997      56:8      
  57:183      58:2153     59:1257     60:1033     61:2601     62:2722   
  63:1881     64:5484     65:2313     66:4650     67:2993     68:1313   
  69:4097     70:1183     71:581      72:2881     74:2599     75:1551   
  76:625      77:2484     78:1864     79:1781     80:2195     81:2020   
  82:1619     83:1360     84:1676     85:3161     86:905      87:2296   
  88:1221     89:4104     90:678      91:8136     92:2326     93:2704   
  94:3735     95:4196     96:1278     97:315      98:1034     99:739    
 100:72      101:1176    102:3483    103:32492   104:4784    105:677    
 106:969     107:2466    108:1148    109:4024    110:2137    111:3265   
 112:2066    113:1784    114:1817    115:2080    116:1900    117:2659   
 118:2790    119:1986    120:1799    121:1362    122:2697    123:2245   
 124:1628    125:2884    126:32      128:1461    129:925     130:1161   
 131:1857    132:807     133:412     134:1741    135:322     136:1112   
 137:1073    138:2819    139:1528    140:1379    141:1358    142:1659   
 143:1578    144:1007    145:369     146:2071    147:1969    148:2516   
 149:2764    150:1037    151:1350    152:2218    153:525     154:6862   
 155:1488    156:2276    157:1834    158:1152    159:2315    160:2688   
 161:1701    162:3564    163:1713    164:1654    165:2156    166:1268   
 167:1791    168:4002    169:796     170:4917    171:1041    172:3864   
 173:3043    174:896     175:1229    176:3465    177:4775    178:3678   
 179:2220    180:2384    181:3743    182:3354    183:1983    184:2262   
 185:20839   186:4984    187:4518    188:4058    189:4245    190:9433   
 191:1553    192:11033   193:9135    194:7515    195:5333    196:3195   
 197:2626    198:6062    199:7890    200:8044    201:6264    202:10491  
 203:10190   204:4600    205:3667    206:4478    207:3607    208:4168   
 209:5058    210:4643    211:2621    212:4331    213:3491    214:1065   
 215:49      216:6793    217:3007    218:1340    219:581     220:2045   
 221:1036    222:861     223:2243   

End of report


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