IPv4 R&E Routing Table Report 20:15 GMT Fri 26 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: 277729 Prefixes after maximum aggregation (per Origin AS): 118473 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 142050 Number of IPv4 prefixes with a valid ROA: 130239 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147280 Total ASes present in the Internet Routing Table: 20176 Prefixes per ASN: 13.77 Origin-only ASes present in the Internet Routing Table: 17417 Origin ASes announcing only one prefix: 7776 Transit ASes present in the Internet Routing Table: 2759 Transit-only ASes present in the Internet Routing Table: 671 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: 313 Number of instances of unregistered ASNs: 342 Number of 32-bit ASNs allocated by the RIRs: 47561 Number of 32-bit ASNs visible in the Routing Table: 8015 Prefixes from 32-bit ASNs in the Routing Table: 32980 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: 95 Number of addresses announced to Internet: 1613304741 Equivalent to 96 /8s, 41 /16s and 19 /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: 87431 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38394 Total APNIC prefixes after maximum aggregation: 7863 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 37338 Unique aggregates announced from the APNIC address blocks: 8058 APNIC Region origin ASes present in the Internet Routing Table: 1170 APNIC Prefixes per ASN: 31.91 APNIC Region origin ASes announcing only one prefix: 463 APNIC Region transit ASes present in the Internet Routing Table: 189 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 527 Number of APNIC addresses announced to Internet: 163765100 Equivalent to 9 /8s, 194 /16s and 219 /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: 126632 Total ARIN prefixes after maximum aggregation: 66132 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124060 Unique aggregates announced from the ARIN address blocks: 67688 ARIN Region origin ASes present in the Internet Routing Table: 9199 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3841 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: 2173 Number of ARIN addresses announced to Internet: 1021684457 Equivalent to 60 /8s, 229 /16s and 170 /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: 45594 Total RIPE prefixes after maximum aggregation: 25052 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 47986 Unique aggregates announced from the RIPE address blocks: 35959 RIPE Region origin ASes present in the Internet Routing Table: 4281 RIPE Prefixes per ASN: 11.21 RIPE Region origin ASes announcing only one prefix: 1796 RIPE Region transit ASes present in the Internet Routing Table: 666 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: 1771 Number of RIPE addresses announced to Internet: 274574672 Equivalent to 16 /8s, 93 /16s and 173 /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: 56433 Total LACNIC prefixes after maximum aggregation: 16463 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54515 Unique aggregates announced from the LACNIC address blocks: 24459 LACNIC Region origin ASes present in the Internet Routing Table: 4415 LACNIC Prefixes per ASN: 12.35 LACNIC Region origin ASes announcing only one prefix: 1565 LACNIC Region transit ASes present in the Internet Routing Table: 863 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: 3377 Number of LACNIC addresses announced to Internet: 108446720 Equivalent to 6 /8s, 118 /16s and 196 /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: 10363 Total AfriNIC prefixes after maximum aggregation: 2705 AfriNIC Deaggregation factor: 3.83 Prefixes being announced from the AfriNIC address blocks: 13735 Unique aggregates announced from the AfriNIC address blocks: 5792 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 45.63 AfriNIC Region origin ASes announcing only one prefix: 111 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: 167 Number of AfriNIC addresses announced to Internet: 44724736 Equivalent to 2 /8s, 170 /16s and 114 /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 13478 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1734 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1714 192 50 CMNET-HUNAN-AP China Mobile communication 24444 920 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 868 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 660 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 4780 619 272 204 SEEDNET Digital United Inc., TW 2907 611 2169 463 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 14337 40902 5391 AMAZON-02, US 22773 3946 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3073 238 1702 USDA-1, US 36352 2512 206 1167 AS-COLOCROSSING, US 367 1987 2201 944 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 1247 98 1010 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 802 1841 16 TE-AS TE-AS, EG 212238 706 51 625 CDNEXT, GB 34984 633 111 489 TELLCOM-AS, TR 51167 567 113 248 CONTABO, DE 8376 565 53 25 Jordan Data Communications, JO 5511 529 129 445 OPENTRANSIT, FR 35819 524 529 79 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 7295 1962 787 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1668 239 1206 Telmex Colombia S.A., CO 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 26615 1008 2486 56 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 818 278 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 24863 998 389 23 LINKdotNET-AS, EG 37069 981 1096 13 MOBINIL, EG 24835 957 426 136 RAYA-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 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 36935 442 116 132 Vodafone-, EG 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 14337 40902 5391 AMAZON-02, US 9808 13478 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7295 1962 787 UNINET, MX 22773 3946 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3073 238 1702 USDA-1, US 56046 3056 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1167 AS-COLOCROSSING, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 367 1987 2201 944 DNIC-ASBLK-00306-00371, 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 13478 13360 CHINAMOBILE-CN China Mobile Communications Grou 8151 7295 6508 UNINET, MX 22773 3946 3633 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3056 2863 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1714 1664 CMNET-HUNAN-AP China Mobile communications corp 56041 1734 1656 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 /11:50 /12:159 /13:214 /14:583 /15:1103 /16:7569 /17:3414 /18:4125 /19:7601 /20:12578 /21:15755 /22:27917 /23:28912 /24:167454 /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 3953 7295 UNINET, MX 22773 2511 3946 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2441 14337 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1044 1420 BRIGHTSPEED, US 36352 992 2512 AS-COLOCROSSING, US 10620 979 1668 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 2:293 3:936 4:5 5:578 6:157 7:5 8:632 9:5 11:171 12:889 13:488 14:170 15:343 16:266 17:3 18:899 20:195 21:4 22:188 23:2558 24:679 27:54 29:19 31:484 32:13 34:10 35:180 36:3181 37:762 38:2480 39:731 40:93 41:1074 42:21 43:201 44:27 45:4239 46:967 47:118 49:21 50:476 51:387 52:1437 54:356 55:1052 56:11 57:28 58:17 59:36 60:146 61:94 62:532 63:759 64:1816 65:1069 66:1556 67:1066 68:376 69:1178 70:447 71:179 72:702 74:979 75:307 76:250 77:403 78:320 79:252 80:333 81:375 82:754 83:203 84:333 85:566 86:247 87:177 88:305 89:839 90:106 91:910 92:668 93:432 94:923 95:407 96:264 97:50 98:482 99:250 100:28 101:20 102:457 103:1086 104:1664 105:173 106:71 107:1544 108:517 109:378 110:102 111:2433 112:1040 113:33 114:45 115:63 116:58 117:1418 118:66 119:70 120:1603 121:34 122:93 123:185 124:178 125:26 126:1 128:556 129:400 130:629 131:1054 132:568 133:221 134:480 135:121 136:684 137:502 138:1001 139:462 140:729 141:460 142:984 143:877 144:411 145:163 146:655 147:516 148:956 149:648 150:202 151:854 152:573 153:179 154:1183 155:932 156:1246 157:440 158:593 159:733 160:606 161:686 162:1008 163:371 164:753 165:633 166:813 167:694 168:1469 169:156 170:1874 171:103 172:1319 173:805 174:363 175:135 176:436 177:918 178:614 179:913 180:38 181:2341 182:25 183:1429 184:449 185:3115 186:3097 187:1734 188:760 189:1900 190:6267 191:576 192:5077 193:1699 194:1029 195:890 196:753 197:1135 198:2708 199:5233 200:4440 201:3718 202:1005 203:793 204:2172 205:1802 206:1585 207:1579 208:1583 209:1966 210:510 211:507 212:972 213:739 214:951 215:40 216:2490 217:465 218:708 219:18 220:127 221:473 222:26 223:1442 End of report