IPv4 R&E Routing Table Report 20:15 GMT Wed 17 Sep, 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: 277272 Prefixes after maximum aggregation (per Origin AS): 118646 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141552 Number of IPv4 prefixes with a valid ROA: 129308 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 147921 Total ASes present in the Internet Routing Table: 20383 Prefixes per ASN: 13.60 Origin-only ASes present in the Internet Routing Table: 17589 Origin ASes announcing only one prefix: 7817 Transit ASes present in the Internet Routing Table: 2794 Transit-only ASes present in the Internet Routing Table: 667 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: 354 Number of instances of unregistered ASNs: 383 Number of 32-bit ASNs allocated by the RIRs: 47447 Number of 32-bit ASNs visible in the Routing Table: 8121 Prefixes from 32-bit ASNs in the Routing Table: 33745 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: 91 Number of addresses announced to Internet: 1615670245 Equivalent to 96 /8s, 77 /16s and 43 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 87351 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36911 Total APNIC prefixes after maximum aggregation: 7673 APNIC Deaggregation factor: 4.81 Prefixes being announced from the APNIC address blocks: 35842 Unique aggregates announced from the APNIC address blocks: 7701 APNIC Region origin ASes present in the Internet Routing Table: 1163 APNIC Prefixes per ASN: 30.82 APNIC Region origin ASes announcing only one prefix: 458 APNIC Region transit ASes present in the Internet Routing Table: 191 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 533 Number of APNIC addresses announced to Internet: 162111084 Equivalent to 9 /8s, 169 /16s and 158 /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: 126491 Total ARIN prefixes after maximum aggregation: 66139 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123926 Unique aggregates announced from the ARIN address blocks: 67570 ARIN Region origin ASes present in the Internet Routing Table: 9189 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3814 ARIN Region transit ASes present in the Internet Routing Table: 853 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: 2170 Number of ARIN addresses announced to Internet: 1022309609 Equivalent to 60 /8s, 239 /16s and 52 /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: 46228 Total RIPE prefixes after maximum aggregation: 25644 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 48635 Unique aggregates announced from the RIPE address blocks: 36659 RIPE Region origin ASes present in the Internet Routing Table: 4449 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 1855 RIPE Region transit ASes present in the Internet Routing Table: 678 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1832 Number of RIPE addresses announced to Internet: 276425808 Equivalent to 16 /8s, 121 /16s and 236 /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: 56551 Total LACNIC prefixes after maximum aggregation: 16449 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54643 Unique aggregates announced from the LACNIC address blocks: 24468 LACNIC Region origin ASes present in the Internet Routing Table: 4476 LACNIC Prefixes per ASN: 12.21 LACNIC Region origin ASes announcing only one prefix: 1580 LACNIC Region transit ASes present in the Internet Routing Table: 884 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: 3428 Number of LACNIC addresses announced to Internet: 108498240 Equivalent to 6 /8s, 119 /16s and 141 /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: 10737 Total AfriNIC prefixes after maximum aggregation: 2480 AfriNIC Deaggregation factor: 4.33 Prefixes being announced from the AfriNIC address blocks: 14135 Unique aggregates announced from the AfriNIC address blocks: 5064 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 47.12 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.7 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: 46217472 Equivalent to 2 /8s, 193 /16s and 57 /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 13285 8729 117 CHINAMOBILE-CN China Mobile Communication 56046 2969 811 191 CMNET-JIANGSU-AP China Mobile communicati 56041 1715 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 24444 892 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 862 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 622 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 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 14411 40915 5401 AMAZON-02, US 22773 3939 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3007 234 1737 USDA-1, US 36352 2511 206 1170 AS-COLOCROSSING, US 367 2284 2511 1108 DNIC-ASBLK-00306-00371, US 6167 1933 4003 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, 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 20940 1250 99 1014 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 789 1841 16 TE-AS TE-AS, EG 212238 691 50 615 CDNEXT, GB 34984 614 103 476 TELLCOM-AS, TR 8376 567 53 26 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 520 128 437 OPENTRANSIT, FR 25019 520 1296 129 SAUDINETSTC-AS, SA 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 7299 1964 787 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1182 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 813 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 27651 651 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 1313 572 23 RAYA-AS, EG 24863 1002 389 23 LINKdotNET-AS, EG 37069 953 1096 13 MOBINIL, EG 36935 655 522 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36992 569 1069 300 ETISALAT-MISR, EG 36914 565 82 3 KENET-AS, KE 29571 478 98 69 ORANGE-COTE-IVOIRE, CI 36903 454 203 332 MT-MPLS, MA 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 14411 40915 5401 AMAZON-02, US 9808 13285 8729 117 CHINAMOBILE-CN China Mobile Communication 8151 7299 1964 787 UNINET, MX 22773 3939 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3007 234 1737 USDA-1, US 56046 2969 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2511 206 1170 AS-COLOCROSSING, US 367 2284 2511 1108 DNIC-ASBLK-00306-00371, US 11830 1989 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 13285 13168 CHINAMOBILE-CN China Mobile Communications Grou 8151 7299 6512 UNINET, MX 22773 3939 3626 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2969 2778 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1715 1637 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1933 1414 CELLCO-PART, US 209 1648 1380 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 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 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 26295 UNALLOCATED 12.110.210.0/23 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 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 /12:156 /13:214 /14:585 /15:1107 /16:7575 /17:3404 /18:4085 /19:7493 /20:12664 /21:15774 /22:28303 /23:29056 /24:166507 /25:66 /26:83 /27:50 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3949 7299 UNINET, MX 22773 2505 3939 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2450 14411 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1035 1396 BRIGHTSPEED, US 36352 995 2511 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 847 1933 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:280 3:927 4:5 5:601 6:150 7:5 8:637 9:5 11:171 12:892 13:512 14:169 15:341 16:265 17:3 18:896 20:193 21:4 22:188 23:2570 24:681 27:55 29:19 31:471 32:12 34:10 35:180 36:3127 37:766 38:2439 39:704 40:93 41:1052 42:21 43:200 44:27 45:4306 46:978 47:116 49:20 50:473 51:384 52:1439 54:366 55:1093 56:11 57:28 58:18 59:36 60:90 61:58 62:541 63:767 64:1808 65:1075 66:1546 67:1063 68:369 69:1188 70:447 71:180 72:695 74:963 75:310 76:248 77:428 78:318 79:237 80:331 81:375 82:764 83:205 84:337 85:554 86:248 87:208 88:305 89:708 90:106 91:932 92:688 93:426 94:958 95:393 96:261 97:50 98:489 99:253 100:28 101:23 102:398 103:1073 104:1654 105:215 106:40 107:1537 108:528 109:387 110:101 111:2372 112:991 113:29 114:46 115:63 116:53 117:1338 118:73 119:73 120:1562 121:33 122:61 123:149 124:85 125:24 126:1 128:550 129:398 130:629 131:1058 132:568 133:221 134:480 135:121 136:681 137:499 138:1006 139:439 140:684 141:361 142:984 143:876 144:405 145:163 146:663 147:504 148:998 149:650 150:203 151:849 152:524 153:180 154:1128 155:981 156:1227 157:438 158:602 159:722 160:603 161:687 162:1010 163:445 164:754 165:615 166:811 167:698 168:1510 169:161 170:1869 171:102 172:1302 173:814 174:361 175:96 176:449 177:926 178:620 179:908 180:40 181:2363 182:29 183:1373 184:455 185:3223 186:3105 187:1688 188:758 189:1860 190:6315 191:581 192:5139 193:1800 194:1133 195:922 196:774 197:1152 198:2710 199:5177 200:4474 201:3621 202:996 203:780 204:2169 205:1812 206:1586 207:1574 208:1556 209:1968 210:348 211:494 212:892 213:715 214:957 215:40 216:2487 217:473 218:643 219:18 220:85 221:470 222:24 223:1373 End of report