IPv4 R&E Routing Table Report 20:15 GMT Sat 09 Aug, 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: 277214 Prefixes after maximum aggregation (per Origin AS): 117999 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 140777 Number of IPv4 prefixes with a valid ROA: 129859 Number of IPv4 prefixes with an invalid ROA: 45 Number of IPv4 prefixes with no ROA: 147310 Total ASes present in the Internet Routing Table: 20277 Prefixes per ASN: 13.67 Origin-only ASes present in the Internet Routing Table: 17494 Origin ASes announcing only one prefix: 7784 Transit ASes present in the Internet Routing Table: 2783 Transit-only ASes present in the Internet Routing Table: 681 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 327 Number of instances of unregistered ASNs: 356 Number of 32-bit ASNs allocated by the RIRs: 47097 Number of 32-bit ASNs visible in the Routing Table: 7959 Prefixes from 32-bit ASNs in the Routing Table: 32249 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 89 Number of addresses announced to Internet: 1631226885 Equivalent to 97 /8s, 58 /16s and 140 /24s Percentage of available address space announced: 44.1 Percentage of allocated address space announced: 44.1 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: 87788 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35917 Total APNIC prefixes after maximum aggregation: 7541 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 34828 Unique aggregates announced from the APNIC address blocks: 7871 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 29.12 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 188 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 556 Number of APNIC addresses announced to Internet: 174602092 Equivalent to 10 /8s, 104 /16s and 55 /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: 126371 Total ARIN prefixes after maximum aggregation: 66384 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124338 Unique aggregates announced from the ARIN address blocks: 68187 ARIN Region origin ASes present in the Internet Routing Table: 9261 ARIN Prefixes per ASN: 13.43 ARIN Region origin ASes announcing only one prefix: 3850 ARIN Region transit ASes present in the Internet Routing Table: 879 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2169 Number of ARIN addresses announced to Internet: 1025097737 Equivalent to 61 /8s, 25 /16s and 192 /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: 47316 Total RIPE prefixes after maximum aggregation: 25371 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49463 Unique aggregates announced from the RIPE address blocks: 36205 RIPE Region origin ASes present in the Internet Routing Table: 4441 RIPE Prefixes per ASN: 11.14 RIPE Region origin ASes announcing only one prefix: 1843 RIPE Region transit ASes present in the Internet Routing Table: 655 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1807 Number of RIPE addresses announced to Internet: 276463952 Equivalent to 16 /8s, 122 /16s and 129 /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: 56269 Total LACNIC prefixes after maximum aggregation: 16164 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54512 Unique aggregates announced from the LACNIC address blocks: 24226 LACNIC Region origin ASes present in the Internet Routing Table: 4306 LACNIC Prefixes per ASN: 12.66 LACNIC Region origin ASes announcing only one prefix: 1528 LACNIC Region transit ASes present in the Internet Routing Table: 862 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3292 Number of LACNIC addresses announced to Internet: 109034304 Equivalent to 6 /8s, 127 /16s and 187 /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: 11014 Total AfriNIC prefixes after maximum aggregation: 2288 AfriNIC Deaggregation factor: 4.81 Prefixes being announced from the AfriNIC address blocks: 13984 Unique aggregates announced from the AfriNIC address blocks: 4201 AfriNIC Region origin ASes present in the Internet Routing Table: 266 AfriNIC Prefixes per ASN: 52.57 AfriNIC Region origin ASes announcing only one prefix: 89 AfriNIC Region transit ASes present in the Internet Routing Table: 72 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: 135 Number of AfriNIC addresses announced to Internet: 45919744 Equivalent to 2 /8s, 188 /16s and 174 /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 12422 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2904 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1679 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1662 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 803 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 606 2153 461 SINET-AS Research Organization of Informa 132525 593 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 13775 41093 5300 AMAZON-02, US 22773 3334 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2907 227 1732 USDA-1, US 36352 2553 209 1135 AS-COLOCROSSING, US 367 2446 2965 1143 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1582 22816 1181 ATT-INTERNET4, 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 1210 95 986 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 8452 830 1841 16 TE-AS TE-AS, EG 25019 800 1301 130 SAUDINETSTC-AS, SA 212238 669 48 593 CDNEXT, GB 34984 618 93 480 TELLCOM-AS, TR 8376 584 53 23 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 35819 562 567 61 MOBILY-AS Etihad Etisalat Company Mobily, 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 7395 1996 878 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1654 238 1202 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1183 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 887 1127 31 TELEFONICA BRASIL S.A, BR 11664 782 278 29 Techtel LMDS Comunicaciones Interactivas 11172 727 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 45 ENTEL CHILE S.A., CL 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 24835 1492 572 23 RAYA-AS, EG 29571 1092 93 63 ORANGE-COTE-IVOIRE, CI 24863 1014 388 19 LINKdotNET-AS, EG 37069 833 1112 11 MOBINIL, EG 36935 594 518 29 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 565 82 3 KENET-AS, KE 36992 506 1088 219 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 372 318 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 13775 41093 5300 AMAZON-02, US 9808 12422 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7395 1996 878 UNINET, MX 22773 3334 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2907 227 1732 USDA-1, US 56046 2904 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2553 209 1135 AS-COLOCROSSING, US 367 2446 2965 1143 DNIC-ASBLK-00306-00371, US 11830 1986 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 12422 12307 CHINAMOBILE-CN China Mobile Communications Grou 8151 7395 6517 UNINET, MX 22773 3334 3171 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2904 2714 CMNET-JIANGSU-AP China Mobile communications co 11830 1986 1922 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1679 1629 CMNET-HUNAN-AP China Mobile communications corp 56041 1662 1584 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1492 1469 RAYA-AS, EG 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, 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 /8:14 /9:11 /10:30 /11:51 /12:159 /13:215 /14:587 /15:1110 /16:7761 /17:3436 /18:4195 /19:7683 /20:13056 /21:15919 /22:28629 /23:29160 /24:164950 /25:67 /26:83 /27:52 /28:18 /29:11 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3988 7395 UNINET, MX 22773 2489 3334 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2342 13775 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1365 BRSPD-PUBLIC, US 36352 1017 2553 AS-COLOCROSSING, US 10620 965 1654 Telmex Colombia S.A., CO 209 962 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:454 3:872 4:5 5:792 6:144 7:5 8:644 9:1 11:171 12:960 13:414 14:112 15:312 16:247 17:3 18:890 20:191 21:4 22:188 23:2631 24:662 27:22 29:19 31:468 32:18 34:10 35:175 36:2999 37:729 38:2508 39:606 40:84 41:1052 42:21 43:215 44:30 45:4149 46:981 47:113 49:25 50:472 51:384 52:1382 54:318 55:1109 56:11 57:25 58:17 59:31 60:31 61:59 62:494 63:778 64:1920 65:1099 66:1577 67:1088 68:365 69:1246 70:452 71:189 72:697 74:965 75:320 76:250 77:455 78:341 79:242 80:287 81:371 82:716 83:216 84:315 85:458 86:244 87:190 88:299 89:677 90:105 91:927 92:663 93:442 94:948 95:649 96:266 97:53 98:500 99:194 100:40 101:27 102:397 103:1257 104:1664 105:173 106:47 107:1557 108:531 109:405 110:46 111:2171 112:821 113:37 114:55 115:21 116:51 117:1196 118:79 119:66 120:1478 121:49 122:60 123:147 124:65 125:25 126:1 128:525 129:402 130:677 131:967 132:568 133:212 134:484 135:121 136:675 137:510 138:1008 139:450 140:677 141:375 142:996 143:821 144:423 145:124 146:643 147:510 148:988 149:684 150:212 151:807 152:625 153:134 154:1178 155:903 156:925 157:420 158:565 159:711 160:890 161:654 162:1044 163:439 164:733 165:617 166:809 167:676 168:1551 169:161 170:1765 171:102 172:1315 173:806 174:359 175:94 176:488 177:997 178:579 179:838 180:44 181:2263 182:28 183:1140 184:457 185:3316 186:2951 187:1617 188:785 189:1963 190:6114 191:532 192:5201 193:1777 194:1131 195:883 196:665 197:1159 198:2753 199:5067 200:4644 201:3801 202:984 203:692 204:2209 205:1828 206:1581 207:1616 208:1584 209:1937 210:342 211:477 212:871 213:721 214:943 215:37 216:2569 217:439 218:580 219:18 220:32 221:472 222:24 223:1213 End of report