IPv4 R&E Routing Table Report 20:15 GMT Sat 15 Mar, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 267441 Prefixes after maximum aggregation (per Origin AS): 116273 Deaggregation factor: 2.30 Unique aggregates announced (without unneeded subnets): 139655 Number of IPv4 prefixes with a valid ROA: 120827 Number of IPv4 prefixes with an invalid ROA: 22 Number of IPv4 prefixes with no ROA: 146592 Total ASes present in the Internet Routing Table: 20501 Prefixes per ASN: 13.05 Origin-only ASes present in the Internet Routing Table: 17645 Origin ASes announcing only one prefix: 7848 Transit ASes present in the Internet Routing Table: 2856 Transit-only ASes present in the Internet Routing Table: 716 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 294 Number of instances of unregistered ASNs: 295 Number of 32-bit ASNs allocated by the RIRs: 46121 Number of 32-bit ASNs visible in the Routing Table: 8027 Prefixes from 32-bit ASNs in the Routing Table: 31316 Number of bogon 32-bit ASNs visible in the Routing Table: 4 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 129 Number of addresses announced to Internet: 1565964157 Equivalent to 93 /8s, 86 /16s and 183 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 85519 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32078 Total APNIC prefixes after maximum aggregation: 7638 APNIC Deaggregation factor: 4.20 Prefixes being announced from the APNIC address blocks: 30790 Unique aggregates announced from the APNIC address blocks: 8246 APNIC Region origin ASes present in the Internet Routing Table: 1201 APNIC Prefixes per ASN: 25.64 APNIC Region origin ASes announcing only one prefix: 472 APNIC Region transit ASes present in the Internet Routing Table: 212 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 545 Number of APNIC addresses announced to Internet: 169429356 Equivalent to 10 /8s, 25 /16s and 73 /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, 131072-155961 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: 125340 Total ARIN prefixes after maximum aggregation: 64359 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 123044 Unique aggregates announced from the ARIN address blocks: 66366 ARIN Region origin ASes present in the Internet Routing Table: 9334 ARIN Prefixes per ASN: 13.18 ARIN Region origin ASes announcing only one prefix: 3896 ARIN Region transit ASes present in the Internet Routing Table: 875 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2156 Number of ARIN addresses announced to Internet: 964701185 Equivalent to 57 /8s, 128 /16s and 44 /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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 48012 Total RIPE prefixes after maximum aggregation: 26129 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 49902 Unique aggregates announced from the RIPE address blocks: 36525 RIPE Region origin ASes present in the Internet Routing Table: 4564 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 1892 RIPE Region transit ASes present in the Internet Routing Table: 682 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1831 Number of RIPE addresses announced to Internet: 288497872 Equivalent to 17 /8s, 50 /16s and 32 /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, 53/8, 57/8, 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: 51306 Total LACNIC prefixes after maximum aggregation: 15589 LACNIC Deaggregation factor: 3.29 Prefixes being announced from the LACNIC address blocks: 49957 Unique aggregates announced from the LACNIC address blocks: 23908 LACNIC Region origin ASes present in the Internet Routing Table: 4284 LACNIC Prefixes per ASN: 11.66 LACNIC Region origin ASes announcing only one prefix: 1476 LACNIC Region transit ASes present in the Internet Routing Table: 872 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3352 Number of LACNIC addresses announced to Internet: 100658240 Equivalent to 5 /8s, 255 /16s and 236 /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: 10411 Total AfriNIC prefixes after maximum aggregation: 2343 AfriNIC Deaggregation factor: 4.44 Prefixes being announced from the AfriNIC address blocks: 13619 Unique aggregates announced from the AfriNIC address blocks: 4489 AfriNIC Region origin ASes present in the Internet Routing Table: 273 AfriNIC Prefixes per ASN: 49.89 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 143 Number of AfriNIC addresses announced to Internet: 42622976 Equivalent to 2 /8s, 138 /16s and 96 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 10138 8753 87 CHINAMOBILE-CN China Mobile Communication 56046 1571 803 179 CMNET-JIANGSU-AP China Mobile communicati 56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1502 192 53 CMNET-HUNAN-AP China Mobile communication 24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 639 2170 465 SINET-AS Research Organization of Informa 17561 558 36 225 LCS-AS-AP LARUS Limited, HK 24445 503 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 476 779 140 ALIBABA-CN-NET Alibaba US Technology Co., Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12917 39642 3964 AMAZON-02, US 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2483 183 1514 USDA-1, US 367 2452 2913 1186 DNIC-ASBLK-00306-00371, US 36352 2280 192 1037 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11776 1877 257 217 ATLANTICBB-JOHNSTOWN, US 6167 1800 3546 465 CELLCO-PART, US 209 1670 4890 278 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1255 98 1014 AKAMAI-ASN1, NL 3215 926 4894 282 France Telecom - Orange, FR 34984 886 86 483 TELLCOM-AS, TR 3257 780 2067 684 GTT-BACKBONE GTT, US 25019 700 1290 134 SAUDINETSTC-AS, SA 203214 639 49 355 HULUMTELE, IQ 8452 602 1842 17 TE-AS TE-AS, EG 8376 574 53 22 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7180 1995 971 UNINET, MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 10620 1734 257 1227 Telmex Colombia S.A., CO 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2503 53 TIM SA, BR 18881 870 1127 31 TELEFONICA BRASIL S.A, BR 28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 633 90 53 ENTEL CHILE S.A., CL 26599 541 2876 72 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1472 389 16 LINKdotNET-AS, EG 29571 1054 94 224 ORANGE-COTE-IVOIRE, CI 20011 980 183 284 INTERNET-SOLUTIONS, ZA 24835 843 509 44 RAYA-AS, EG 36935 694 520 41 Vodafone-, EG 36992 639 1229 126 ETISALAT-MISR, EG 37069 591 1031 15 MOBINIL, EG 36914 550 82 3 KENET-AS, KE 36903 417 195 306 MT-MPLS, MA 2018 373 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12917 39642 3964 AMAZON-02, US 9808 10138 8753 87 CHINAMOBILE-CN China Mobile Communication 8151 7180 1995 971 UNINET, MX 22773 3374 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 4155 2483 183 1514 USDA-1, US 367 2452 2913 1186 DNIC-ASBLK-00306-00371, US 36352 2280 192 1037 AS-COLOCROSSING, US 7018 2219 22910 1582 ATT-INTERNET4, US 11830 1993 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 10138 10051 CHINAMOBILE-CN China Mobile Communications Grou 8151 7180 6209 UNINET, MX 22773 3374 3199 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1993 1929 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1877 1660 ATLANTICBB-JOHNSTOWN, US 56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1472 1456 LINKdotNET-AS, EG 56047 1502 1449 CMNET-HUNAN-AP China Mobile communications corp 209 1670 1392 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA 23.158.216.0/24 Transit: 22427 GNET-AS, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:43 /12:151 /13:222 /14:577 /15:1104 /16:7636 /17:3374 /18:4220 /19:7740 /20:12590 /21:15543 /22:28271 /23:28107 /24:157593 /25:60 /26:75 /27:36 /28:16 /29:16 /30:10 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3764 7180 UNINET, MX 22773 2516 3374 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2337 12917 AMAZON-02, US 11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 10620 978 1734 Telmex Colombia S.A., CO 209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US 19901 921 1159 BRSPD-PUBLIC, US 36352 905 2280 AS-COLOCROSSING, US 11776 881 1877 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:62 2:484 3:589 4:5 5:930 6:149 7:5 8:640 11:171 12:1000 13:291 14:141 15:300 16:241 17:5 18:888 20:173 21:4 22:188 23:2533 24:965 27:23 29:19 31:401 32:18 34:10 35:131 36:1229 37:1057 38:2316 39:543 40:54 41:947 42:211 43:204 44:25 45:4084 46:914 47:84 49:55 50:350 51:382 52:1384 54:276 55:1068 56:9 57:19 58:31 59:26 60:16 61:65 62:519 63:778 64:1888 65:1087 66:1626 67:973 68:417 69:1226 70:442 71:216 72:814 74:979 75:428 76:246 77:448 78:336 79:272 80:268 81:333 82:644 83:241 84:359 85:556 86:233 87:245 88:258 89:802 90:101 91:976 92:644 93:379 94:788 95:621 96:268 97:66 98:467 99:161 100:36 101:28 102:321 103:1248 104:1451 105:117 106:63 107:1485 108:539 109:375 110:57 111:1915 112:462 113:37 114:64 115:18 116:54 117:1047 118:173 119:133 120:1169 121:42 122:110 123:146 124:57 125:24 126:1 128:485 129:281 130:659 131:932 132:565 133:212 134:526 135:115 136:569 137:508 138:1031 139:422 140:710 141:420 142:983 143:699 144:414 145:75 146:693 147:502 148:857 149:710 150:373 151:673 152:538 153:126 154:1540 155:774 156:1375 157:377 158:501 159:674 160:833 161:726 162:1006 163:341 164:734 165:790 166:709 167:650 168:1507 169:144 170:1682 171:122 172:1394 173:801 174:255 175:63 176:726 177:1115 178:541 179:799 180:50 181:1902 182:46 183:885 184:512 185:3389 186:2482 187:1427 188:756 189:1739 190:5176 191:485 192:5098 193:1743 194:1205 195:916 196:666 197:1526 198:2678 199:4861 200:4075 201:3410 202:988 203:710 204:2130 205:1984 206:1579 207:1514 208:1354 209:1959 210:310 211:425 212:948 213:795 214:1011 215:36 216:2518 217:417 218:525 219:20 220:24 221:301 222:31 223:738 End of report