IPv4 R&E Routing Table Report 20:15 GMT Wed 13 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: 280549 Prefixes after maximum aggregation (per Origin AS): 120245 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143644 Number of IPv4 prefixes with a valid ROA: 131988 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 148521 Total ASes present in the Internet Routing Table: 20770 Prefixes per ASN: 13.51 Origin-only ASes present in the Internet Routing Table: 17871 Origin ASes announcing only one prefix: 7970 Transit ASes present in the Internet Routing Table: 2899 Transit-only ASes present in the Internet Routing Table: 731 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 349 Number of instances of unregistered ASNs: 378 Number of 32-bit ASNs allocated by the RIRs: 47119 Number of 32-bit ASNs visible in the Routing Table: 8258 Prefixes from 32-bit ASNs in the Routing Table: 33427 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: 104 Number of addresses announced to Internet: 1640433157 Equivalent to 97 /8s, 199 /16s and 6 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89421 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36563 Total APNIC prefixes after maximum aggregation: 7620 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 35324 Unique aggregates announced from the APNIC address blocks: 8066 APNIC Region origin ASes present in the Internet Routing Table: 1211 APNIC Prefixes per ASN: 29.17 APNIC Region origin ASes announcing only one prefix: 478 APNIC Region transit ASes present in the Internet Routing Table: 196 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: 570 Number of APNIC addresses announced to Internet: 174191980 Equivalent to 10 /8s, 97 /16s and 245 /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: 126499 Total ARIN prefixes after maximum aggregation: 66553 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124708 Unique aggregates announced from the ARIN address blocks: 68566 ARIN Region origin ASes present in the Internet Routing Table: 9273 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 3851 ARIN Region transit ASes present in the Internet Routing Table: 880 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: 2172 Number of ARIN addresses announced to Internet: 1023567881 Equivalent to 61 /8s, 2 /16s and 104 /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: 49541 Total RIPE prefixes after maximum aggregation: 27042 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51644 Unique aggregates announced from the RIPE address blocks: 37999 RIPE Region origin ASes present in the Internet Routing Table: 4714 RIPE Prefixes per ASN: 10.96 RIPE Region origin ASes announcing only one prefix: 1962 RIPE Region transit ASes present in the Internet Routing Table: 712 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: 1970 Number of RIPE addresses announced to Internet: 283712848 Equivalent to 16 /8s, 233 /16s and 29 /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: 56384 Total LACNIC prefixes after maximum aggregation: 16332 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54546 Unique aggregates announced from the LACNIC address blocks: 24365 LACNIC Region origin ASes present in the Internet Routing Table: 4409 LACNIC Prefixes per ASN: 12.37 LACNIC Region origin ASes announcing only one prefix: 1580 LACNIC Region transit ASes present in the Internet Routing Table: 890 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: 3388 Number of LACNIC addresses announced to Internet: 109625664 Equivalent to 6 /8s, 136 /16s and 193 /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: 11213 Total AfriNIC prefixes after maximum aggregation: 2434 AfriNIC Deaggregation factor: 4.61 Prefixes being announced from the AfriNIC address blocks: 14223 Unique aggregates announced from the AfriNIC address blocks: 4550 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 48.05 AfriNIC Region origin ASes announcing only one prefix: 99 AfriNIC Region transit ASes present in the Internet Routing Table: 85 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 158 Number of AfriNIC addresses announced to Internet: 49221120 Equivalent to 2 /8s, 239 /16s and 14 /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 12671 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2905 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 817 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 609 2153 462 SINET-AS Research Organization of Informa 132525 594 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 13802 41095 5312 AMAZON-02, US 22773 3337 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2885 225 1735 USDA-1, US 36352 2545 209 1139 AS-COLOCROSSING, US 367 2427 2965 1122 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1666 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1578 22816 1177 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 1208 95 987 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 673 48 597 CDNEXT, GB 34984 653 98 509 TELLCOM-AS, TR 8376 615 53 23 Jordan Data Communications, JO 8452 600 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 58224 525 325 397 TCI, IR 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 7458 2042 809 UNINET, MX 11830 1943 369 64 Instituto Costarricense de Electricidad y 10620 1653 238 1201 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 886 1127 31 TELEFONICA BRASIL S.A, BR 11664 784 278 29 Techtel LMDS Comunicaciones Interactivas 27651 650 92 45 ENTEL CHILE S.A., CL 28006 643 76 296 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1316 572 23 RAYA-AS, EG 29571 1157 93 56 ORANGE-COTE-IVOIRE, CI 24863 904 389 23 LINKdotNET-AS, EG 37069 654 1112 11 MOBINIL, EG 36935 613 521 41 Vodafone-, EG 36914 578 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 539 241 352 MT-MPLS, MA 36992 434 1038 210 ETISALAT-MISR, EG 2018 375 318 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 13802 41095 5312 AMAZON-02, US 9808 12671 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7458 2042 809 UNINET, MX 22773 3337 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 4155 2885 225 1735 USDA-1, US 36352 2545 209 1139 AS-COLOCROSSING, US 367 2427 2965 1122 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 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 12671 12556 CHINAMOBILE-CN China Mobile Communications Grou 8151 7458 6649 UNINET, MX 22773 3337 3175 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2905 2715 CMNET-JIANGSU-AP China Mobile communications co 39891 1936 1886 ALJAWWALSTC-AS, SA 11830 1943 1879 Instituto Costarricense de Electricidad y Telec 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 6167 1948 1428 CELLCO-PART, 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 32182 UNALLOCATED 8.9.96.0/23 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 396146 UNALLOCATED 8.44.213.0/24 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 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 /11:52 /12:160 /13:223 /14:593 /15:1118 /16:7783 /17:3488 /18:4202 /19:7648 /20:13019 /21:15994 /22:28595 /23:29489 /24:167884 /25:67 /26:82 /27:52 /28:18 /29:10 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4005 7458 UNINET, MX 22773 2493 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2355 13802 AMAZON-02, US 11830 1651 1943 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1366 BRSPD-PUBLIC, US 36352 1018 2545 AS-COLOCROSSING, US 10620 964 1653 Telmex Colombia S.A., CO 209 962 1666 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) ---------------------------------------------- 1:76 2:470 3:879 4:5 5:865 6:144 7:5 8:651 9:2 11:171 12:881 13:414 14:114 15:314 16:247 17:3 18:892 20:191 21:4 22:188 23:2652 24:663 27:22 29:19 31:498 32:12 34:10 35:176 36:3054 37:759 38:2591 39:629 40:88 41:1116 42:152 43:209 44:30 45:4251 46:1088 47:114 49:25 50:481 51:384 52:1382 54:314 55:1086 56:11 57:25 58:44 59:30 60:31 61:54 62:535 63:787 64:1933 65:1099 66:1578 67:1083 68:368 69:1270 70:450 71:189 72:692 74:965 75:320 76:248 77:433 78:363 79:247 80:306 81:382 82:734 83:229 84:325 85:473 86:254 87:224 88:304 89:705 90:108 91:992 92:692 93:450 94:992 95:662 96:267 97:54 98:504 99:198 100:40 101:30 102:432 103:1247 104:1670 105:217 106:47 107:1561 108:536 109:415 110:46 111:2270 112:845 113:46 114:54 115:33 116:50 117:1206 118:83 119:67 120:1497 121:49 122:61 123:146 124:69 125:26 126:1 128:531 129:401 130:676 131:992 132:575 133:212 134:506 135:120 136:676 137:522 138:1023 139:449 140:696 141:379 142:995 143:838 144:426 145:127 146:648 147:513 148:996 149:773 150:223 151:831 152:636 153:135 154:1252 155:912 156:1033 157:421 158:572 159:725 160:910 161:643 162:1032 163:447 164:747 165:675 166:813 167:689 168:1537 169:170 170:1800 171:103 172:1318 173:813 174:363 175:91 176:500 177:994 178:597 179:869 180:43 181:2273 182:21 183:1154 184:451 185:3560 186:2975 187:1613 188:798 189:1920 190:6104 191:545 192:5232 193:1834 194:1202 195:914 196:908 197:1234 198:2762 199:5093 200:4505 201:3661 202:985 203:702 204:2216 205:1813 206:1589 207:1619 208:1583 209:1987 210:347 211:478 212:916 213:770 214:949 215:39 216:2612 217:483 218:589 219:19 220:44 221:472 222:24 223:1246 End of report