IPv4 R&E Routing Table Report 20:15 GMT Fri 23 Jan, 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: 288925 Prefixes after maximum aggregation (per Origin AS): 118739 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 149400 Number of IPv4 prefixes with a valid ROA: 146463 Number of IPv4 prefixes with an invalid ROA: 203 Number of IPv4 prefixes with no ROA: 142259 Total ASes present in the Internet Routing Table: 20690 Prefixes per ASN: 13.96 Origin-only ASes present in the Internet Routing Table: 17809 Origin ASes announcing only one prefix: 8012 Transit ASes present in the Internet Routing Table: 2881 Transit-only ASes present in the Internet Routing Table: 731 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 249 Number of instances of unregistered ASNs: 278 Number of 32-bit ASNs allocated by the RIRs: 48462 Number of 32-bit ASNs visible in the Routing Table: 8489 Prefixes from 32-bit ASNs in the Routing Table: 34749 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 102 Number of addresses announced to Internet: 1613584389 Equivalent to 96 /8s, 45 /16s and 88 /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: 93155 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43337 Total APNIC prefixes after maximum aggregation: 8982 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 39957 Unique aggregates announced from the APNIC address blocks: 9197 APNIC Region origin ASes present in the Internet Routing Table: 1321 APNIC Prefixes per ASN: 30.25 APNIC Region origin ASes announcing only one prefix: 553 APNIC Region transit ASes present in the Internet Routing Table: 231 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 645 Number of APNIC addresses announced to Internet: 171228780 Equivalent to 10 /8s, 52 /16s and 190 /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: 126748 Total ARIN prefixes after maximum aggregation: 64801 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 124241 Unique aggregates announced from the ARIN address blocks: 70765 ARIN Region origin ASes present in the Internet Routing Table: 9104 ARIN Prefixes per ASN: 13.65 ARIN Region origin ASes announcing only one prefix: 3776 ARIN Region transit ASes present in the Internet Routing Table: 851 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: 2183 Number of ARIN addresses announced to Internet: 1008537641 Equivalent to 60 /8s, 29 /16s and 16 /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: 51448 Total RIPE prefixes after maximum aggregation: 26055 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 54204 Unique aggregates announced from the RIPE address blocks: 37554 RIPE Region origin ASes present in the Internet Routing Table: 4519 RIPE Prefixes per ASN: 11.99 RIPE Region origin ASes announcing only one prefix: 1944 RIPE Region transit ASes present in the Internet Routing Table: 684 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1905 Number of RIPE addresses announced to Internet: 281026768 Equivalent to 16 /8s, 192 /16s and 32 /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: 56577 Total LACNIC prefixes after maximum aggregation: 16376 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54439 Unique aggregates announced from the LACNIC address blocks: 24316 LACNIC Region origin ASes present in the Internet Routing Table: 4602 LACNIC Prefixes per ASN: 11.83 LACNIC Region origin ASes announcing only one prefix: 1625 LACNIC Region transit ASes present in the Internet Routing Table: 909 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: 3590 Number of LACNIC addresses announced to Internet: 106678688 Equivalent to 6 /8s, 91 /16s and 201 /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: 10566 Total AfriNIC prefixes after maximum aggregation: 2329 AfriNIC Deaggregation factor: 4.54 Prefixes being announced from the AfriNIC address blocks: 15982 Unique aggregates announced from the AfriNIC address blocks: 7476 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 53.27 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 80 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 166 Number of AfriNIC addresses announced to Internet: 45969152 Equivalent to 2 /8s, 189 /16s and 111 /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 13342 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2262 142 509 LCS-AS-AP LARUS Limited, HK 56041 1765 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1710 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1055 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 897 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 767 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 665 1159 154 ALIBABA-CN-NET Alibaba US Technology Co., 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 13999 38810 5447 AMAZON-02 - Amazon.com, Inc., US 22773 4776 3099 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 6167 1974 4173 531 CELLCO-PART - Verizon Business, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1716 1502 792 DNIC-ASBLK-00306-00371 - United States De 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1477 727 698 BRIGHTSPEED - Brightspeed, US 20057 1442 1017 111 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 4969 306 72 ALJAWWALSTC-AS, SA 20940 1245 95 1014 AKAMAI-ASN1, NL 25019 1143 1335 138 SAUDINETSTC-AS, SA 34984 984 151 739 TELLCOM-AS, TR 8452 901 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 700 49 615 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 550 53 25 Jordan Data Communications, JO 5511 528 98 448 OPENTRANSIT, FR 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 7311 1933 785 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1519 211 1131 Telmex Colombia S.A., CO 11664 1396 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 INTEGRATEL PERU S.A.A., PE 26615 1013 2486 56 TIM SA, BR 18881 908 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 12252 682 164 24 America Movil Peru S.A.C., PE 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 1451 463 90 RAYA-AS, EG 37069 1095 1100 11 MOBINIL, EG 24863 947 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 569 82 3 KENET-AS, KE 36935 510 515 10 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 386 870 246 ETISALAT-MISR, EG 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 13999 38810 5447 AMAZON-02 - Amazon.com, Inc., US 9808 13342 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7311 1933 785 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4776 3099 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 17561 2262 142 509 LCS-AS-AP LARUS Limited, HK 11830 1991 369 65 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 13342 13222 CHINAMOBILE-CN China Mobile Communications Grou 8151 7311 6526 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4776 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3357 3162 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 17561 2262 1753 LCS-AS-AP LARUS Limited, HK 11776 1904 1691 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1765 1686 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1710 1660 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 23.155.185.0/24 Origin: 401541 OSIE - Osie, US 23.155.185.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.157.217.0/24 Origin: 401541 OSIE - Osie, US 23.157.217.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, 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 /11:52 /12:159 /13:213 /14:577 /15:1064 /16:7490 /17:3480 /18:4164 /19:7655 /20:13179 /21:16206 /22:28528 /23:29757 /24:176114 /25:61 /26:80 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3999 7311 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4776 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2475 13999 AMAZON-02 - Amazon.com, Inc., US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 36352 1094 2581 AS-COLOCROSSING - HostPapa, US 11664 1082 1396 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1051 1477 BRIGHTSPEED - Brightspeed, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 931 1519 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:72 2:464 3:956 4:5 5:1165 6:172 7:5 8:642 9:5 11:172 12:878 13:562 14:177 15:361 16:154 17:3 18:910 20:204 21:4 22:188 23:2875 24:661 27:46 29:19 31:512 32:13 34:6 35:182 36:3326 37:651 38:2326 39:835 40:250 41:1102 42:23 43:201 44:29 45:4557 46:937 47:166 48:20 49:21 50:481 51:522 52:1080 54:231 55:1126 56:11 57:31 58:44 59:42 60:74 61:58 62:604 63:724 64:2209 65:988 66:2414 67:1123 68:487 69:1211 70:435 71:156 72:706 74:979 75:295 76:237 77:393 78:575 79:246 80:354 81:406 82:833 83:207 84:346 85:639 86:239 87:211 88:279 89:583 90:103 91:935 92:679 93:891 94:985 95:1316 96:286 97:45 98:391 99:270 100:22 101:23 102:520 103:1278 104:1722 105:133 106:3 107:1742 108:521 109:364 110:104 111:2757 112:1298 113:34 114:34 115:55 116:56 117:1512 118:69 119:89 120:1932 121:36 122:78 123:127 124:66 125:49 128:625 129:377 130:713 131:1144 132:555 133:218 134:497 135:137 136:738 137:609 138:1033 139:446 140:758 141:427 142:1458 143:878 144:506 145:192 146:685 147:468 148:1028 149:738 150:229 151:892 152:736 153:283 154:2367 155:1043 156:2094 157:491 158:652 159:839 160:632 161:722 162:975 163:421 164:736 165:620 166:563 167:719 168:1495 169:203 170:1869 171:101 172:1583 173:785 174:274 175:98 176:657 177:989 178:646 179:886 180:45 181:2530 182:23 183:1620 184:441 185:3383 186:3453 187:1730 188:1066 189:1972 190:5965 191:542 192:5086 193:1695 194:1114 195:938 196:705 197:1058 198:2677 199:2464 200:4483 201:3574 202:1118 203:818 204:2193 205:1797 206:1497 207:1710 208:1719 209:1975 210:446 211:514 212:1085 213:862 214:978 215:43 216:2450 217:558 218:648 219:29 220:82 221:536 222:33 223:1668 End of report