IPv4 R&E Routing Table Report 20:15 GMT Thu 07 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: 278663 Prefixes after maximum aggregation (per Origin AS): 119107 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141483 Number of IPv4 prefixes with a valid ROA: 130383 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 148236 Total ASes present in the Internet Routing Table: 20374 Prefixes per ASN: 13.68 Origin-only ASes present in the Internet Routing Table: 17575 Origin ASes announcing only one prefix: 7810 Transit ASes present in the Internet Routing Table: 2799 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: 361 Number of instances of unregistered ASNs: 390 Number of 32-bit ASNs allocated by the RIRs: 47076 Number of 32-bit ASNs visible in the Routing Table: 8005 Prefixes from 32-bit ASNs in the Routing Table: 32329 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: 121 Number of addresses announced to Internet: 1638700805 Equivalent to 97 /8s, 172 /16s and 151 /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: 88353 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35901 Total APNIC prefixes after maximum aggregation: 7546 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 34844 Unique aggregates announced from the APNIC address blocks: 7892 APNIC Region origin ASes present in the Internet Routing Table: 1199 APNIC Prefixes per ASN: 29.06 APNIC Region origin ASes announcing only one prefix: 473 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: 174302316 Equivalent to 10 /8s, 99 /16s and 164 /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: 126564 Total ARIN prefixes after maximum aggregation: 66481 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124995 Unique aggregates announced from the ARIN address blocks: 68317 ARIN Region origin ASes present in the Internet Routing Table: 9277 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3847 ARIN Region transit ASes present in the Internet Routing Table: 883 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: 2170 Number of ARIN addresses announced to Internet: 1028209161 Equivalent to 61 /8s, 73 /16s and 58 /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: 48421 Total RIPE prefixes after maximum aggregation: 26239 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 50090 Unique aggregates announced from the RIPE address blocks: 36520 RIPE Region origin ASes present in the Internet Routing Table: 4486 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1867 RIPE Region transit ASes present in the Internet Routing Table: 662 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: 1830 Number of RIPE addresses announced to Internet: 281085264 Equivalent to 16 /8s, 193 /16s and 5 /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: 56394 Total LACNIC prefixes after maximum aggregation: 16283 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54649 Unique aggregates announced from the LACNIC address blocks: 24432 LACNIC Region origin ASes present in the Internet Routing Table: 4328 LACNIC Prefixes per ASN: 12.63 LACNIC Region origin ASes announcing only one prefix: 1530 LACNIC Region transit ASes present in the Internet Routing Table: 865 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: 3309 Number of LACNIC addresses announced to Internet: 109039680 Equivalent to 6 /8s, 127 /16s and 208 /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: 11022 Total AfriNIC prefixes after maximum aggregation: 2297 AfriNIC Deaggregation factor: 4.80 Prefixes being announced from the AfriNIC address blocks: 13964 Unique aggregates announced from the AfriNIC address blocks: 4203 AfriNIC Region origin ASes present in the Internet Routing Table: 274 AfriNIC Prefixes per ASN: 50.96 AfriNIC Region origin ASes announcing only one prefix: 93 AfriNIC Region transit ASes present in the Internet Routing Table: 75 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: 140 Number of AfriNIC addresses announced to Internet: 45947136 Equivalent to 2 /8s, 189 /16s and 25 /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 12417 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1676 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 802 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 132525 593 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 536 893 138 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 13768 41061 5300 AMAZON-02, US 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2911 227 1735 USDA-1, US 36352 2564 210 1130 AS-COLOCROSSING, US 367 2456 2966 1152 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 1586 22817 1185 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 1219 96 990 AKAMAI-ASN1, NL 3257 898 2073 744 GTT-BACKBONE GTT, US 25019 898 1304 132 SAUDINETSTC-AS, SA 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 212238 657 46 581 CDNEXT, GB 34984 619 93 481 TELLCOM-AS, TR 8376 581 53 23 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE 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 7409 2000 883 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1683 240 1219 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 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 1104 93 63 ORANGE-COTE-IVOIRE, CI 24863 993 388 20 LINKdotNET-AS, EG 37069 877 1112 11 MOBINIL, EG 36935 594 518 29 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 567 82 3 KENET-AS, KE 36992 506 1088 219 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 373 318 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 13768 41061 5300 AMAZON-02, US 9808 12417 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7409 2000 883 UNINET, MX 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2911 227 1735 USDA-1, US 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2564 210 1130 AS-COLOCROSSING, US 367 2456 2966 1152 DNIC-ASBLK-00306-00371, US 11830 1987 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 12417 12302 CHINAMOBILE-CN China Mobile Communications Grou 8151 7409 6526 UNINET, MX 22773 3338 3175 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2905 2715 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1676 1626 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 /12:160 /13:215 /14:592 /15:1118 /16:7777 /17:3485 /18:4233 /19:7792 /20:13180 /21:15963 /22:28683 /23:29276 /24:165833 /25:67 /26:85 /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 3996 7409 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2346 13768 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1027 1363 BRSPD-PUBLIC, US 36352 1018 2564 AS-COLOCROSSING, US 10620 993 1683 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 2:470 3:870 4:5 5:794 6:144 7:5 8:647 9:1 11:171 12:961 13:414 14:113 15:311 16:247 17:3 18:890 20:145 21:4 22:188 23:2651 24:681 27:22 29:19 31:490 32:18 33:1 34:10 35:175 36:2994 37:748 38:2518 39:606 40:83 41:1071 42:21 43:216 44:29 45:4153 46:960 47:113 49:25 50:475 51:381 52:1382 54:318 55:1106 56:11 57:25 58:17 59:30 60:31 61:60 62:508 63:787 64:1932 65:1101 66:1606 67:1093 68:370 69:1282 70:455 71:189 72:697 74:965 75:320 76:264 77:468 78:313 79:243 80:299 81:368 82:729 83:225 84:313 85:465 86:243 87:190 88:299 89:680 90:105 91:941 92:665 93:452 94:912 95:628 96:268 97:53 98:500 99:194 100:40 101:26 102:392 103:1261 104:1682 105:173 106:47 107:1555 108:533 109:434 110:50 111:2169 112:820 113:37 114:55 115:21 116:51 117:1196 118:79 119:65 120:1478 121:49 122:60 123:147 124:65 125:25 126:1 128:522 129:402 130:677 131:1011 132:572 133:212 134:486 135:124 136:675 137:519 138:1017 139:453 140:679 141:376 142:1025 143:827 144:430 145:124 146:647 147:510 148:1012 149:695 150:211 151:800 152:622 153:132 154:1179 155:905 156:930 157:426 158:571 159:713 160:897 161:651 162:1055 163:442 164:734 165:618 166:813 167:694 168:1550 169:161 170:1765 171:103 172:1328 173:822 174:359 175:93 176:492 177:1014 178:608 179:829 180:43 181:2279 182:31 183:1138 184:457 185:3332 186:2992 187:1688 188:782 189:1965 190:6056 191:543 192:5251 193:1788 194:1158 195:883 196:674 197:1170 198:2771 199:5083 200:4647 201:3805 202:987 203:694 204:2217 205:1836 206:1581 207:1626 208:1588 209:1975 210:342 211:476 212:912 213:734 214:944 215:37 216:2583 217:435 218:579 219:18 220:32 221:472 222:24 223:1213 End of report