IPv4 R&E Routing Table Report 20:15 GMT Tue 31 Mar, 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: 289438 Prefixes after maximum aggregation (per Origin AS): 117519 Deaggregation factor: 2.46 Unique aggregates announced (without unneeded subnets): 146724 Number of IPv4 prefixes with a valid ROA: 148396 Number of IPv4 prefixes with an invalid ROA: 215 Number of IPv4 prefixes with no ROA: 140827 Total ASes present in the Internet Routing Table: 20356 Prefixes per ASN: 14.22 Origin-only ASes present in the Internet Routing Table: 17485 Origin ASes announcing only one prefix: 7858 Transit ASes present in the Internet Routing Table: 2871 Transit-only ASes present in the Internet Routing Table: 721 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: 36 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 245 Number of instances of unregistered ASNs: 274 Number of 32-bit ASNs allocated by the RIRs: 49173 Number of 32-bit ASNs visible in the Routing Table: 8336 Prefixes from 32-bit ASNs in the Routing Table: 34592 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: 1620385445 Equivalent to 96 /8s, 149 /16s and 30 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 93685 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42625 Total APNIC prefixes after maximum aggregation: 8012 APNIC Deaggregation factor: 5.32 Prefixes being announced from the APNIC address blocks: 39238 Unique aggregates announced from the APNIC address blocks: 7758 APNIC Region origin ASes present in the Internet Routing Table: 1269 APNIC Prefixes per ASN: 30.92 APNIC Region origin ASes announcing only one prefix: 520 APNIC Region transit ASes present in the Internet Routing Table: 229 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 628 Number of APNIC addresses announced to Internet: 168352620 Equivalent to 10 /8s, 8 /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: 127902 Total ARIN prefixes after maximum aggregation: 65225 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 125058 Unique aggregates announced from the ARIN address blocks: 70738 ARIN Region origin ASes present in the Internet Routing Table: 8951 ARIN Prefixes per ASN: 13.97 ARIN Region origin ASes announcing only one prefix: 3703 ARIN Region transit ASes present in the Internet Routing Table: 840 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: 2160 Number of ARIN addresses announced to Internet: 1017368617 Equivalent to 60 /8s, 163 /16s and 208 /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: 51497 Total RIPE prefixes after maximum aggregation: 25526 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 54643 Unique aggregates announced from the RIPE address blocks: 37644 RIPE Region origin ASes present in the Internet Routing Table: 4514 RIPE Prefixes per ASN: 12.11 RIPE Region origin ASes announcing only one prefix: 1934 RIPE Region transit ASes present in the Internet Routing Table: 700 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1941 Number of RIPE addresses announced to Internet: 282561616 Equivalent to 16 /8s, 215 /16s and 140 /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: 57546 Total LACNIC prefixes after maximum aggregation: 16448 LACNIC Deaggregation factor: 3.50 Prefixes being announced from the LACNIC address blocks: 55189 Unique aggregates announced from the LACNIC address blocks: 24061 LACNIC Region origin ASes present in the Internet Routing Table: 4499 LACNIC Prefixes per ASN: 12.27 LACNIC Region origin ASes announcing only one prefix: 1590 LACNIC Region transit ASes present in the Internet Routing Table: 901 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3456 Number of LACNIC addresses announced to Internet: 106610880 Equivalent to 6 /8s, 90 /16s and 192 /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: 9623 Total AfriNIC prefixes after maximum aggregation: 2111 AfriNIC Deaggregation factor: 4.56 Prefixes being announced from the AfriNIC address blocks: 15215 Unique aggregates announced from the AfriNIC address blocks: 6437 AfriNIC Region origin ASes present in the Internet Routing Table: 287 AfriNIC Prefixes per ASN: 53.01 AfriNIC Region origin ASes announcing only one prefix: 111 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: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151 Number of AfriNIC addresses announced to Internet: 45349888 Equivalent to 2 /8s, 179 /16s and 252 /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 13599 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3415 887 189 CMNET-JIANGSU-AP China Mobile communicati 17561 2394 151 475 LCS-AS-AP LARUS Limited, HK 56041 1805 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1713 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1069 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 926 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 56045 910 481 55 CMNET-JIANGXI-AP China Mobile communicati 24445 781 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 667 2153 465 SINET-AS Research Organization of Informa 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 14547 41241 5594 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3101 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2367 194 1087 AS-COLOCROSSING - HostPapa, US 6167 2084 4309 585 CELLCO-PART - Verizon Business, US 11776 1895 257 221 ATLANTICBB-JOHNSTOWN - Breezeline, US 209 1628 4850 259 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 367 1600 1313 735 DNIC-ASBLK-00306-00371 - United States De 19901 1467 728 680 BRIGHTSPEED - Brightspeed, US 20057 1457 1001 113 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 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 4904 302 73 ALJAWWALSTC-AS, SA 25019 1310 1335 140 SAUDINETSTC-AS, SA 20940 1257 97 1021 AKAMAI-ASN1, NL 34984 1020 149 750 TELLCOM-AS, TR 8452 942 1841 19 TE-AS TE-AS, EG 3215 903 4832 303 France Telecom - Orange, FR 8376 658 54 30 UNASSIGNED 212238 592 42 526 CDNEXT, GB 35819 583 581 73 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 7090 1902 814 UNINET, MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 10620 1512 211 1127 Telmex Colombia S.A., CO 11664 1458 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 26615 1053 2393 95 TIM SA, BR 18881 983 1127 31 TELEFONICA BRASIL S.A, BR 27651 848 140 44 ENTEL CHILE S.A., CL 52468 688 43 207 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 1516 524 27 RAYA-AS, EG 24863 861 389 16 LINKdotNET-AS, EG 37069 731 1100 11 MOBINIL, EG 36914 561 82 3 KENET-AS, KE 36935 544 515 11 Vodafone-, EG 36903 507 235 347 MT-MPLS, MA 29571 486 78 19 ORANGE-COTE-IVOIRE, CI 36992 457 919 272 ETISALAT-MISR, EG 2018 373 318 69 TENET-1, ZA 37693 347 599 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 14547 41241 5594 AMAZON-02 - Amazon.com, Inc., US 9808 13599 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7090 1902 814 UNINET, MX 39891 4904 302 73 ALJAWWALSTC-AS, SA 22773 4780 3101 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3415 887 189 CMNET-JIANGSU-AP China Mobile communicati 749 3140 54728 2391 DNIC-AS-00749 - United States Department 17561 2394 151 475 LCS-AS-AP LARUS Limited, HK 36352 2367 194 1087 AS-COLOCROSSING - HostPapa, US 6167 2084 4309 585 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 13599 13479 CHINAMOBILE-CN China Mobile Communications Grou 8151 7090 6276 UNINET, MX 39891 4904 4831 ALJAWWALSTC-AS, SA 22773 4780 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3415 3226 CMNET-JIANGSU-AP China Mobile communications co 17561 2394 1919 LCS-AS-AP LARUS Limited, HK 11830 1948 1883 Instituto Costarricense de Electricidad y Telec 56041 1805 1726 CMNET-ZHEJIANG-AP China Mobile communications c 11776 1895 1674 ATLANTICBB-JOHNSTOWN - Breezeline, US 56047 1713 1663 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4 - AT&T En 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4 - AT&T En 26295 UNALLOCATED 12.110.210.0/23 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS - GorillaServers, Inc., U 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /11:55 /12:159 /13:217 /14:579 /15:1074 /16:7476 /17:3499 /18:4196 /19:7667 /20:13254 /21:16119 /22:28649 /23:30044 /24:176103 /25:66 /26:83 /27:52 /28:19 /29:7 /30:9 /31:0 /32:55 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3886 7090 UNINET, MX 39891 3652 4904 ALJAWWALSTC-AS, SA 22773 3054 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2617 14547 AMAZON-02 - Amazon.com, Inc., US 11830 1658 1948 Instituto Costarricense de Electricidad y Telecom., CR 11664 1148 1458 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1029 2367 AS-COLOCROSSING - HostPapa, US 19901 1024 1467 BRIGHTSPEED - Brightspeed, US 209 946 1628 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 6167 930 2084 CELLCO-PART - Verizon Business, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:74 2:540 3:1001 4:1 5:1333 6:183 7:5 8:619 9:7 11:172 12:848 13:623 14:117 15:400 16:143 17:3 18:899 20:366 21:4 22:188 23:2927 24:860 27:20 28:1 29:19 31:460 32:13 34:9 35:183 36:3343 37:646 38:2515 39:862 40:47 41:1129 42:20 43:219 44:26 45:4552 46:903 47:174 48:45 49:21 50:479 51:464 52:1098 54:266 55:1116 56:11 57:26 58:39 59:34 60:14 61:58 62:620 63:689 64:2213 65:1001 66:2413 67:1125 68:486 69:1211 70:424 71:142 72:713 74:983 75:266 76:235 77:524 78:554 79:239 80:326 81:422 82:837 83:200 84:345 85:592 86:242 87:198 88:286 89:612 90:98 91:918 92:669 93:921 94:973 95:1298 96:272 97:44 98:377 99:288 100:21 101:26 102:391 103:1196 104:1641 105:157 107:1754 108:527 109:354 110:56 111:2801 112:1311 113:32 114:34 115:8 116:56 117:1645 118:68 119:95 120:2029 121:36 122:44 123:107 124:63 125:21 126:1 128:575 129:372 130:714 131:1271 132:561 133:217 134:515 135:136 136:725 137:598 138:1023 139:458 140:744 141:466 142:1527 143:860 144:504 145:122 146:663 147:498 148:1017 149:748 150:226 151:928 152:838 153:295 154:2353 155:985 156:2029 157:439 158:663 159:847 160:683 161:685 162:980 163:430 164:732 165:646 166:555 167:696 168:1465 169:206 170:1870 171:104 172:1389 173:812 174:265 175:100 176:619 177:1094 178:643 179:884 180:36 181:2604 182:34 183:1720 184:442 185:3240 186:3578 187:1709 188:1044 189:1863 190:6242 191:557 192:5148 193:1698 194:1102 195:930 196:667 197:716 198:2642 199:2463 200:4388 201:3660 202:1055 203:724 204:2173 205:1850 206:1494 207:1701 208:1629 209:2071 210:319 211:511 212:1093 213:879 214:973 215:36 216:2461 217:539 218:670 219:18 220:28 221:537 222:31 223:1698 End of report