IPv4 R&E Routing Table Report 20:15 GMT Tue 29 Jul, 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: 279456 Prefixes after maximum aggregation (per Origin AS): 120412 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 142919 Number of IPv4 prefixes with a valid ROA: 130808 Number of IPv4 prefixes with an invalid ROA: 213 Number of IPv4 prefixes with no ROA: 148435 Total ASes present in the Internet Routing Table: 20743 Prefixes per ASN: 13.47 Origin-only ASes present in the Internet Routing Table: 17873 Origin ASes announcing only one prefix: 8012 Transit ASes present in the Internet Routing Table: 2870 Transit-only ASes present in the Internet Routing Table: 706 Paths with bogon ASNs present in the IPv4 Routing Table: 14 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: 343 Number of instances of unregistered ASNs: 376 Number of 32-bit ASNs allocated by the RIRs: 46966 Number of 32-bit ASNs visible in the Routing Table: 8200 Prefixes from 32-bit ASNs in the Routing Table: 33472 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 100 Number of addresses announced to Internet: 1644511749 Equivalent to 98 /8s, 5 /16s and 66 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 89065 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35020 Total APNIC prefixes after maximum aggregation: 7523 APNIC Deaggregation factor: 4.66 Prefixes being announced from the APNIC address blocks: 33968 Unique aggregates announced from the APNIC address blocks: 7802 APNIC Region origin ASes present in the Internet Routing Table: 1194 APNIC Prefixes per ASN: 28.45 APNIC Region origin ASes announcing only one prefix: 469 APNIC Region transit ASes present in the Internet Routing Table: 187 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: 550 Number of APNIC addresses announced to Internet: 173279852 Equivalent to 10 /8s, 84 /16s and 10 /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: 126285 Total ARIN prefixes after maximum aggregation: 66452 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124891 Unique aggregates announced from the ARIN address blocks: 68004 ARIN Region origin ASes present in the Internet Routing Table: 9343 ARIN Prefixes per ASN: 13.37 ARIN Region origin ASes announcing only one prefix: 3893 ARIN Region transit ASes present in the Internet Routing Table: 877 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: 2207 Number of ARIN addresses announced to Internet: 1028120073 Equivalent to 61 /8s, 71 /16s and 222 /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: 51066 Total RIPE prefixes after maximum aggregation: 27517 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 52425 Unique aggregates announced from the RIPE address blocks: 38350 RIPE Region origin ASes present in the Internet Routing Table: 4701 RIPE Prefixes per ASN: 11.15 RIPE Region origin ASes announcing only one prefix: 1965 RIPE Region transit ASes present in the Internet Routing Table: 710 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: 1935 Number of RIPE addresses announced to Internet: 287453520 Equivalent to 17 /8s, 34 /16s and 49 /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: 55701 Total LACNIC prefixes after maximum aggregation: 16310 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 53980 Unique aggregates announced from the LACNIC address blocks: 24259 LACNIC Region origin ASes present in the Internet Routing Table: 4376 LACNIC Prefixes per ASN: 12.34 LACNIC Region origin ASes announcing only one prefix: 1577 LACNIC Region transit ASes present in the Internet Routing Table: 881 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: 3354 Number of LACNIC addresses announced to Internet: 109248320 Equivalent to 6 /8s, 130 /16s and 255 /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: 11041 Total AfriNIC prefixes after maximum aggregation: 2353 AfriNIC Deaggregation factor: 4.69 Prefixes being announced from the AfriNIC address blocks: 14092 Unique aggregates announced from the AfriNIC address blocks: 4408 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 48.43 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 74 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: 154 Number of AfriNIC addresses announced to Internet: 46288896 Equivalent to 2 /8s, 194 /16s and 80 /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 11966 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 56047 1644 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 866 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 780 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 45102 537 887 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 468 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 13671 40974 5279 AMAZON-02, US 22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2876 218 1742 USDA-1, US 36352 2559 210 1145 AS-COLOCROSSING, US 367 2490 3042 1171 DNIC-ASBLK-00306-00371, US 6167 1937 4026 519 CELLCO-PART, US 11776 1897 259 215 ATLANTICBB-JOHNSTOWN, US 209 1653 4889 266 CENTURYLINK-US-LEGACY-QWEST, US 7018 1605 22828 1202 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 1167 91 948 AKAMAI-ASN1, NL 3257 1049 2083 813 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 51167 564 113 248 CONTABO, DE 8376 562 52 24 Jordan Data Communications, JO 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 6933 2032 770 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1690 242 1218 Telmex Colombia S.A., CO 3816 1345 780 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1009 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11172 726 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 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 1224 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 24863 1050 388 19 LINKdotNET-AS, EG 37069 957 1112 11 MOBINIL, EG 36914 573 82 3 KENET-AS, KE 36935 572 518 29 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 481 1054 214 ETISALAT-MISR, EG 36903 456 204 330 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 13671 40974 5279 AMAZON-02, US 9808 11966 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 6933 2032 770 UNINET, MX 22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2876 218 1742 USDA-1, US 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2559 210 1145 AS-COLOCROSSING, US 367 2490 3042 1171 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 11966 11851 CHINAMOBILE-CN China Mobile Communications Grou 8151 6933 6163 UNINET, MX 22773 3336 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2755 2566 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1897 1682 ATLANTICBB-JOHNSTOWN, US 56047 1644 1594 CMNET-HUNAN-AP China Mobile communications corp 56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1937 1418 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 22542 UNALLOCATED 8.42.195.0/24 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 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 /10:31 /11:51 /12:159 /13:216 /14:591 /15:1120 /16:7764 /17:3488 /18:4272 /19:7832 /20:13330 /21:15817 /22:28515 /23:29169 /24:166841 /25:65 /26:81 /27:40 /28:18 /29:13 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3618 6933 UNINET, MX 22773 2491 3336 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2356 13671 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1026 1354 BRSPD-PUBLIC, US 36352 1018 2559 AS-COLOCROSSING, US 10620 996 1690 Telmex Colombia S.A., CO 209 962 1653 CENTURYLINK-US-LEGACY-QWEST, US 11776 878 1897 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:28 2:443 3:850 4:5 5:806 6:145 7:5 8:653 11:171 12:963 13:399 14:112 15:309 16:247 17:3 18:890 20:190 21:4 22:188 23:2660 24:681 27:26 29:19 31:537 32:18 33:1 34:10 35:174 36:2694 37:771 38:2641 39:587 40:84 41:1095 42:22 43:237 44:31 45:4223 46:1009 47:111 49:25 50:480 51:380 52:1383 54:319 55:1092 56:11 57:21 58:18 59:39 60:31 61:61 62:518 63:782 64:1927 65:1114 66:1616 67:1096 68:372 69:1266 70:454 71:190 72:694 74:969 75:318 76:249 77:480 78:359 79:244 80:311 81:401 82:742 83:236 84:341 85:479 86:244 87:218 88:303 89:669 90:107 91:1001 92:689 93:479 94:1027 95:696 96:270 97:53 98:500 99:189 100:40 101:28 102:383 103:1277 104:1697 105:186 106:40 107:1543 108:522 109:445 110:44 111:2022 112:702 113:38 114:54 115:23 116:55 117:1147 118:74 119:82 120:1459 121:51 122:62 123:137 124:65 125:25 126:1 128:531 129:398 130:675 131:1023 132:566 133:212 134:470 135:126 136:681 137:526 138:1036 139:443 140:765 141:366 142:1051 143:840 144:436 145:123 146:685 147:510 148:1026 149:732 150:210 151:815 152:633 153:132 154:1192 155:914 156:955 157:409 158:578 159:758 160:850 161:692 162:1033 163:438 164:728 165:609 166:823 167:694 168:1532 169:164 170:1745 171:105 172:1326 173:809 174:359 175:84 176:802 177:1142 178:614 179:844 180:41 181:2247 182:29 183:1091 184:455 185:3502 186:2852 187:1595 188:859 189:1837 190:5958 191:541 192:5287 193:1889 194:1222 195:977 196:724 197:1183 198:2760 199:5087 200:4610 201:3733 202:987 203:700 204:2294 205:1809 206:1597 207:1634 208:1522 209:1986 210:357 211:467 212:1034 213:794 214:938 215:37 216:2596 217:460 218:560 219:18 220:32 221:461 222:24 223:1138 End of report