IPv4 R&E Routing Table Report 20:15 GMT Wed 24 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: 278799 Prefixes after maximum aggregation (per Origin AS): 118337 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141432 Number of IPv4 prefixes with a valid ROA: 130298 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 148291 Total ASes present in the Internet Routing Table: 20230 Prefixes per ASN: 13.78 Origin-only ASes present in the Internet Routing Table: 17464 Origin ASes announcing only one prefix: 7769 Transit ASes present in the Internet Routing Table: 2766 Transit-only ASes present in the Internet Routing Table: 659 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: 340 Number of instances of unregistered ASNs: 369 Number of 32-bit ASNs allocated by the RIRs: 47538 Number of 32-bit ASNs visible in the Routing Table: 8052 Prefixes from 32-bit ASNs in the Routing Table: 33513 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: 99 Number of addresses announced to Internet: 1616202405 Equivalent to 96 /8s, 85 /16s and 74 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 87422 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38365 Total APNIC prefixes after maximum aggregation: 7896 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 37267 Unique aggregates announced from the APNIC address blocks: 8056 APNIC Region origin ASes present in the Internet Routing Table: 1168 APNIC Prefixes per ASN: 31.91 APNIC Region origin ASes announcing only one prefix: 456 APNIC Region transit ASes present in the Internet Routing Table: 185 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 528 Number of APNIC addresses announced to Internet: 163753068 Equivalent to 9 /8s, 194 /16s and 172 /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: 126866 Total ARIN prefixes after maximum aggregation: 66210 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 124232 Unique aggregates announced from the ARIN address blocks: 67777 ARIN Region origin ASes present in the Internet Routing Table: 9197 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3820 ARIN Region transit ASes present in the Internet Routing Table: 843 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: 2168 Number of ARIN addresses announced to Internet: 1021828073 Equivalent to 60 /8s, 231 /16s and 219 /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: 45565 Total RIPE prefixes after maximum aggregation: 25046 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 48046 Unique aggregates announced from the RIPE address blocks: 35937 RIPE Region origin ASes present in the Internet Routing Table: 4330 RIPE Prefixes per ASN: 11.10 RIPE Region origin ASes announcing only one prefix: 1818 RIPE Region transit ASes present in the Internet Routing Table: 667 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1791 Number of RIPE addresses announced to Internet: 275638096 Equivalent to 16 /8s, 109 /16s and 231 /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: 56629 Total LACNIC prefixes after maximum aggregation: 16425 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54696 Unique aggregates announced from the LACNIC address blocks: 24468 LACNIC Region origin ASes present in the Internet Routing Table: 4441 LACNIC Prefixes per ASN: 12.32 LACNIC Region origin ASes announcing only one prefix: 1567 LACNIC Region transit ASes present in the Internet Routing Table: 882 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: 3401 Number of LACNIC addresses announced to Internet: 108560128 Equivalent to 6 /8s, 120 /16s and 127 /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: 11034 Total AfriNIC prefixes after maximum aggregation: 2502 AfriNIC Deaggregation factor: 4.41 Prefixes being announced from the AfriNIC address blocks: 14459 Unique aggregates announced from the AfriNIC address blocks: 5100 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 48.85 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 164 Number of AfriNIC addresses announced to Internet: 46313984 Equivalent to 2 /8s, 194 /16s and 178 /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 13418 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3052 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1713 192 50 CMNET-HUNAN-AP China Mobile communication 24444 920 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 865 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 659 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 618 272 204 SEEDNET Digital United Inc., TW 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 588 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 14342 40904 5391 AMAZON-02, US 22773 3943 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3052 237 1709 USDA-1, US 36352 2510 206 1172 AS-COLOCROSSING, US 367 2024 2316 960 DNIC-ASBLK-00306-00371, US 6167 1933 4003 514 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1430 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 1217 96 990 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 808 1841 16 TE-AS TE-AS, EG 212238 709 52 627 CDNEXT, GB 34984 604 103 470 TELLCOM-AS, TR 8376 568 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 35819 543 541 84 MOBILY-AS Etihad Etisalat Company Mobily, 5511 524 129 440 OPENTRANSIT, FR 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 7427 2000 791 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1187 371 23 Telefonica del Peru S.A.A., PE 26615 1004 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 815 278 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 1253 604 24 RAYA-AS, EG 24863 994 389 23 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36935 830 522 45 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 575 82 3 KENET-AS, KE 36992 564 1069 299 ETISALAT-MISR, EG 36903 487 220 344 MT-MPLS, MA 29571 478 98 68 ORANGE-COTE-IVOIRE, CI 2018 376 318 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 14342 40904 5391 AMAZON-02, US 9808 13418 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7427 2000 791 UNINET, MX 22773 3943 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3052 237 1709 USDA-1, US 56046 3052 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2510 206 1172 AS-COLOCROSSING, US 367 2024 2316 960 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 13418 13300 CHINAMOBILE-CN China Mobile Communications Grou 8151 7427 6636 UNINET, MX 22773 3943 3630 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3052 2859 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1713 1663 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1933 1419 CELLCO-PART, US 209 1649 1381 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 /12:159 /13:215 /14:584 /15:1109 /16:7586 /17:3424 /18:4157 /19:7639 /20:12700 /21:15880 /22:28387 /23:29033 /24:167580 /25:65 /26:81 /27:49 /28:18 /29:8 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4027 7427 UNINET, MX 22773 2508 3943 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2446 14342 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1041 1414 BRIGHTSPEED, US 36352 993 2510 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 846 1933 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:288 3:934 4:5 5:586 6:152 7:5 8:629 9:5 11:171 12:890 13:496 14:170 15:342 16:266 17:3 18:897 20:195 21:4 22:188 23:2533 24:682 27:54 29:19 31:462 32:13 34:10 35:180 36:3158 37:789 38:2486 39:726 40:93 41:1091 42:21 43:202 44:27 45:4281 46:967 47:118 49:21 50:476 51:387 52:1435 54:355 55:1100 56:11 57:28 58:17 59:36 60:146 61:93 62:539 63:760 64:1815 65:1073 66:1555 67:1068 68:375 69:1205 70:446 71:180 72:703 74:981 75:303 76:250 77:409 78:310 79:235 80:317 81:362 82:709 83:208 84:332 85:558 86:250 87:177 88:305 89:833 90:106 91:907 92:678 93:423 94:916 95:404 96:264 97:50 98:483 99:254 100:28 101:23 102:450 103:1085 104:1656 105:197 106:71 107:1546 108:525 109:377 110:102 111:2417 112:1040 113:33 114:45 115:63 116:57 117:1408 118:74 119:72 120:1587 121:34 122:94 123:186 124:178 125:26 126:1 128:553 129:399 130:631 131:1055 132:582 133:220 134:480 135:121 136:683 137:500 138:1000 139:460 140:731 141:460 142:986 143:884 144:406 145:163 146:662 147:516 148:997 149:649 150:204 151:855 152:574 153:178 154:1170 155:969 156:1244 157:437 158:602 159:726 160:605 161:687 162:1015 163:441 164:754 165:640 166:812 167:697 168:1510 169:159 170:1867 171:103 172:1319 173:811 174:363 175:128 176:431 177:926 178:618 179:895 180:38 181:2356 182:25 183:1422 184:451 185:3139 186:3105 187:1718 188:764 189:1885 190:6359 191:578 192:5087 193:1702 194:1033 195:895 196:767 197:1141 198:2716 199:5198 200:4463 201:3648 202:1004 203:791 204:2172 205:1806 206:1590 207:1578 208:1568 209:1967 210:510 211:506 212:912 213:713 214:938 215:40 216:2495 217:453 218:708 219:18 220:127 221:473 222:26 223:1429 End of report