IPv4 R&E Routing Table Report 20:15 GMT Mon 18 May, 2026 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: 291767 Prefixes after maximum aggregation (per Origin AS): 118779 Deaggregation factor: 2.46 Unique aggregates announced (without unneeded subnets): 149140 Number of IPv4 prefixes with a valid ROA: 154189 Number of IPv4 prefixes with an invalid ROA: 221 Number of IPv4 prefixes with no ROA: 137357 Total ASes present in the Internet Routing Table: 20089 Prefixes per ASN: 14.52 Origin-only ASes present in the Internet Routing Table: 17243 Origin ASes announcing only one prefix: 7740 Transit ASes present in the Internet Routing Table: 2846 Transit-only ASes present in the Internet Routing Table: 730 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 35 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 296 Number of instances of unregistered ASNs: 325 Number of 32-bit ASNs allocated by the RIRs: 49790 Number of 32-bit ASNs visible in the Routing Table: 8183 Prefixes from 32-bit ASNs in the Routing Table: 35380 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 102 Number of addresses announced to Internet: 1640985605 Equivalent to 97 /8s, 207 /16s and 116 /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: 94532 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43042 Total APNIC prefixes after maximum aggregation: 8016 APNIC Deaggregation factor: 5.37 Prefixes being announced from the APNIC address blocks: 39439 Unique aggregates announced from the APNIC address blocks: 7815 APNIC Region origin ASes present in the Internet Routing Table: 1209 APNIC Prefixes per ASN: 32.62 APNIC Region origin ASes announcing only one prefix: 489 APNIC Region transit ASes present in the Internet Routing Table: 207 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 585 Number of APNIC addresses announced to Internet: 168448364 Equivalent to 10 /8s, 10 /16s and 81 /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: 128171 Total ARIN prefixes after maximum aggregation: 65338 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 125576 Unique aggregates announced from the ARIN address blocks: 70910 ARIN Region origin ASes present in the Internet Routing Table: 8927 ARIN Prefixes per ASN: 14.07 ARIN Region origin ASes announcing only one prefix: 3697 ARIN Region transit ASes present in the Internet Routing Table: 848 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2162 Number of ARIN addresses announced to Internet: 1018759945 Equivalent to 60 /8s, 185 /16s and 11 /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, 393216-404380 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: 52559 Total RIPE prefixes after maximum aggregation: 26212 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 55514 Unique aggregates announced from the RIPE address blocks: 38428 RIPE Region origin ASes present in the Internet Routing Table: 4524 RIPE Prefixes per ASN: 12.27 RIPE Region origin ASes announcing only one prefix: 1918 RIPE Region transit ASes present in the Internet Routing Table: 728 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1978 Number of RIPE addresses announced to Internet: 301208272 Equivalent to 17 /8s, 244 /16s and 18 /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: 57845 Total LACNIC prefixes after maximum aggregation: 16461 LACNIC Deaggregation factor: 3.51 Prefixes being announced from the LACNIC address blocks: 55169 Unique aggregates announced from the LACNIC address blocks: 24148 LACNIC Region origin ASes present in the Internet Routing Table: 4288 LACNIC Prefixes per ASN: 12.87 LACNIC Region origin ASes announcing only one prefix: 1518 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: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3296 Number of LACNIC addresses announced to Internet: 106145984 Equivalent to 6 /8s, 83 /16s and 168 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 9854 Total AfriNIC prefixes after maximum aggregation: 2568 AfriNIC Deaggregation factor: 3.84 Prefixes being announced from the AfriNIC address blocks: 15967 Unique aggregates announced from the AfriNIC address blocks: 7753 AfriNIC Region origin ASes present in the Internet Routing Table: 288 AfriNIC Prefixes per ASN: 55.44 AfriNIC Region origin ASes announcing only one prefix: 118 AfriNIC Region transit ASes present in the Internet Routing Table: 79 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 162 Number of AfriNIC addresses announced to Internet: 46351616 Equivalent to 2 /8s, 195 /16s and 69 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13702 8761 121 CHINAMOBILE-CN China Mobile Communication 56046 3477 887 189 CMNET-JIANGSU-AP China Mobile communicati 17561 2592 163 481 LCS-AS-AP LARUS Limited, HK 56041 1835 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1719 192 52 CMNET-HUNAN-AP China Mobile communication 24444 1081 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 932 177 49 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 56045 914 481 56 CMNET-JIANGXI-AP China Mobile communicati 45102 833 1226 172 ALIBABA-CN-NET Alibaba US Technology Co., 24445 794 497 67 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 14938 41320 5674 AMAZON-02 - Amazon.com, Inc., US 22773 4786 3099 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2523 191 1113 AS-COLOCROSSING - HostPapa, US 6167 2151 4363 557 CELLCO-PART - Verizon Business, US 11776 1899 256 226 ATLANTICBB-JOHNSTOWN - Breezeline, US 209 1620 4848 253 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 367 1495 1238 713 DNIC-ASBLK-00306-00371 - United States De 20057 1462 1001 112 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 19901 1451 728 659 BRIGHTSPEED - Brightspeed, 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 4975 307 72 ALJAWWALSTC-AS, SA 25019 1489 1383 139 SAUDINETSTC-AS, SA 20940 1262 97 1025 AKAMAI-ASN1, NL 8452 1040 1842 20 TE-AS TE-AS, EG 34984 1035 136 701 TELLCOM-AS, TR 3215 875 4814 339 France Telecom - Orange, FR 212238 793 57 701 CDNEXT, GB 8376 681 53 29 UNASSIGNED 35819 593 583 77 MOBILY-AS Etihad Etisalat Company Mobily, 51167 565 113 248 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 7630 1896 774 UNINET, MX 11830 1936 369 65 Instituto Costarricense de Electricidad y 10620 1491 206 1111 Telmex Colombia S.A., CO 11664 1448 277 32 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 371 22 INTEGRATEL PERU S.A.A., PE 26615 1062 2391 99 TIM SA, BR 18881 985 1127 31 TELEFONICA BRASIL S.A, BR 27651 851 140 44 ENTEL CHILE S.A., CL 52468 667 42 246 UFINET PANAMA S.A., PA 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 1459 525 29 RAYA-AS, EG 24863 755 119 374 LINKdotNET-AS, EG 37069 743 1100 11 MOBINIL, EG 36992 620 1299 203 ETISALAT-MISR, EG 29571 603 70 18 ORANGE-COTE-IVOIRE, CI 36935 566 148 150 Vodafone-, EG 36914 555 82 3 KENET-AS, KE 36903 463 220 313 MT-MPLS, MA 2018 374 318 69 TENET-1, ZA 37693 349 599 43 TUNISIANA, TN 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 14938 41320 5674 AMAZON-02 - Amazon.com, Inc., US 9808 13702 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 7630 1896 774 UNINET, MX 39891 4975 307 72 ALJAWWALSTC-AS, SA 22773 4786 3099 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3477 887 189 CMNET-JIANGSU-AP China Mobile communicati 749 3138 54728 2389 DNIC-AS-00749 - United States Department 17561 2592 163 481 LCS-AS-AP LARUS Limited, HK 36352 2523 191 1113 AS-COLOCROSSING - HostPapa, US 6167 2151 4363 557 CELLCO-PART - Verizon Business, 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 13702 13581 CHINAMOBILE-CN China Mobile Communications Grou 8151 7630 6856 UNINET, MX 39891 4975 4903 ALJAWWALSTC-AS, SA 22773 4786 4423 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3477 3288 CMNET-JIANGSU-AP China Mobile communications co 17561 2592 2111 LCS-AS-AP LARUS Limited, HK 11830 1936 1871 Instituto Costarricense de Electricidad y Telec 56041 1835 1756 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1899 1673 ATLANTICBB-JOHNSTOWN - Breezeline, US 56047 1719 1667 CMNET-HUNAN-AP China Mobile communications corp 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 400273 UNALLOCATED 8.41.137.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 23.146.16.0/24 Origin: 396281 AGCOMTECH - AGILITY COMMUNICATIONS AND T 23.146.16.0/24 Transit: 7018 ATT-INTERNET4 - AT&T Enterprises, LLC, U 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 /10:35 /11:56 /12:161 /13:216 /14:576 /15:1083 /16:7459 /17:3494 /18:4283 /19:7786 /20:13233 /21:16190 /22:28474 /23:30122 /24:178282 /25:64 /26:84 /27:46 /28:20 /29:7 /30:15 /31:0 /32:56 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4270 7630 UNINET, MX 39891 3660 4975 ALJAWWALSTC-AS, SA 22773 3063 4786 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2704 14938 AMAZON-02 - Amazon.com, Inc., US 11830 1647 1936 Instituto Costarricense de Electricidad y Telecom., CR 11664 1144 1448 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1047 2523 AS-COLOCROSSING - HostPapa, US 19901 1001 1451 BRIGHTSPEED - Brightspeed, US 6167 988 2151 CELLCO-PART - Verizon Business, US 209 944 1620 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:80 2:548 3:1003 4:1 5:1149 6:188 7:5 8:618 9:7 11:172 12:809 13:635 14:126 15:407 16:187 17:3 18:903 20:365 21:4 22:188 23:2932 24:784 27:17 28:1 29:19 31:461 32:13 34:10 35:178 36:3429 37:669 38:2617 39:883 40:60 41:1072 42:20 43:213 44:27 45:4307 46:892 47:188 48:91 49:23 50:477 51:541 52:1128 54:281 55:1110 56:11 57:31 58:16 59:26 60:14 61:65 62:653 63:682 64:2247 65:1033 66:2384 67:1191 68:505 69:1187 70:425 71:141 72:707 74:1017 75:260 76:221 77:495 78:543 79:274 80:312 81:429 82:813 83:203 84:376 85:585 86:262 87:231 88:281 89:635 90:121 91:885 92:602 93:952 94:969 95:1289 96:276 97:46 98:471 99:303 100:40 101:31 102:433 103:1143 104:1673 105:211 106:7 107:1828 108:524 109:369 110:61 111:2806 112:1410 113:40 114:32 115:14 116:51 117:1644 118:54 119:73 120:2061 121:38 122:59 123:106 124:59 125:19 126:1 128:507 129:394 130:735 131:1283 132:547 133:214 134:564 135:118 136:683 137:593 138:1084 139:460 140:751 141:476 142:1570 143:824 144:523 145:173 146:664 147:496 148:1058 149:838 150:220 151:923 152:859 153:593 154:2628 155:968 156:2132 157:437 158:683 159:897 160:763 161:710 162:991 163:370 164:729 165:633 166:560 167:713 168:1454 169:163 170:1841 171:103 172:1457 173:805 174:352 175:107 176:741 177:1146 178:641 179:912 180:37 181:2645 182:28 183:1739 184:450 185:3343 186:3690 187:1881 188:1054 189:1954 190:6261 191:602 192:5095 193:1699 194:1135 195:957 196:696 197:693 198:2656 199:2481 200:4440 201:3606 202:1010 203:724 204:2158 205:1816 206:1505 207:1722 208:1614 209:1894 210:353 211:519 212:1046 213:854 214:951 215:36 216:2516 217:543 218:669 219:18 220:27 221:537 222:29 223:1716 End of report