IPv4 R&E Routing Table Report 20:15 GMT Sat 24 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: 288670 Prefixes after maximum aggregation (per Origin AS): 118639 Deaggregation factor: 2.43 Unique aggregates announced (without unneeded subnets): 149214 Number of IPv4 prefixes with a valid ROA: 146251 Number of IPv4 prefixes with an invalid ROA: 203 Number of IPv4 prefixes with no ROA: 142216 Total ASes present in the Internet Routing Table: 20659 Prefixes per ASN: 13.97 Origin-only ASes present in the Internet Routing Table: 17791 Origin ASes announcing only one prefix: 8006 Transit ASes present in the Internet Routing Table: 2868 Transit-only ASes present in the Internet Routing Table: 722 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 48484 Number of 32-bit ASNs visible in the Routing Table: 8458 Prefixes from 32-bit ASNs in the Routing Table: 34667 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: 1613169093 Equivalent to 96 /8s, 39 /16s and 1 /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: 92940 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43391 Total APNIC prefixes after maximum aggregation: 9031 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 40017 Unique aggregates announced from the APNIC address blocks: 9274 APNIC Region origin ASes present in the Internet Routing Table: 1328 APNIC Prefixes per ASN: 30.13 APNIC Region origin ASes announcing only one prefix: 560 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: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 645 Number of APNIC addresses announced to Internet: 171242348 Equivalent to 10 /8s, 52 /16s and 243 /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: 126693 Total ARIN prefixes after maximum aggregation: 64747 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 124171 Unique aggregates announced from the ARIN address blocks: 70707 ARIN Region origin ASes present in the Internet Routing Table: 9104 ARIN Prefixes per ASN: 13.64 ARIN Region origin ASes announcing only one prefix: 3783 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: 1008475945 Equivalent to 60 /8s, 28 /16s and 31 /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: 51234 Total RIPE prefixes after maximum aggregation: 25959 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 53995 Unique aggregates announced from the RIPE address blocks: 37410 RIPE Region origin ASes present in the Internet Routing Table: 4504 RIPE Prefixes per ASN: 11.99 RIPE Region origin ASes announcing only one prefix: 1928 RIPE Region transit ASes present in the Internet Routing Table: 681 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: 1898 Number of RIPE addresses announced to Internet: 280667088 Equivalent to 16 /8s, 186 /16s and 163 /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: 56571 Total LACNIC prefixes after maximum aggregation: 16374 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54433 Unique aggregates announced from the LACNIC address blocks: 24254 LACNIC Region origin ASes present in the Internet Routing Table: 4587 LACNIC Prefixes per ASN: 11.87 LACNIC Region origin ASes announcing only one prefix: 1620 LACNIC Region transit ASes present in the Internet Routing Table: 904 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: 3566 Number of LACNIC addresses announced to Internet: 106674016 Equivalent to 6 /8s, 91 /16s and 183 /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: 10532 Total AfriNIC prefixes after maximum aggregation: 2332 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 15952 Unique aggregates announced from the AfriNIC address blocks: 7477 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 53.00 AfriNIC Region origin ASes announcing only one prefix: 115 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: 45966336 Equivalent to 2 /8s, 189 /16s and 100 /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 2263 142 510 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 13993 38810 5441 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 1905 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1704 1475 786 DNIC-ASBLK-00306-00371 - United States De 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1479 727 700 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 549 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 7283 1921 780 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 1259 371 22 INTEGRATEL PERU S.A.A., PE 26615 1012 2486 56 TIM SA, BR 18881 909 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 572 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 13993 38810 5441 AMAZON-02 - Amazon.com, Inc., US 9808 13342 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7283 1921 780 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 2263 142 510 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 7283 6503 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 2263 1753 LCS-AS-AP LARUS Limited, HK 11776 1905 1692 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 /16:7491 /17:3475 /18:4154 /19:7643 /20:13128 /21:16212 /22:28580 /23:29695 /24:175940 /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 4000 7283 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4776 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2473 13993 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 1052 1479 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 3:962 4:5 5:1167 6:172 7:5 8:642 9:5 11:172 12:876 13:555 14:177 15:362 16:154 17:3 18:910 20:204 21:4 22:188 23:2877 24:663 27:46 29:19 31:500 32:13 34:6 35:182 36:3327 37:644 38:2327 39:835 40:250 41:1109 42:23 43:198 44:29 45:4523 46:921 47:166 48:20 49:21 50:481 51:522 52:1080 54:231 55:1124 56:11 57:31 58:44 59:42 60:74 61:58 62:605 63:724 64:2207 65:988 66:2411 67:1122 68:487 69:1210 70:436 71:155 72:707 74:979 75:295 76:237 77:388 78:574 79:247 80:352 81:406 82:834 83:208 84:344 85:637 86:237 87:211 88:279 89:579 90:103 91:926 92:676 93:893 94:959 95:1295 96:282 97:45 98:390 99:270 100:22 101:23 102:511 103:1276 104:1724 105:133 106:3 107:1731 108:517 109:365 110:104 111:2757 112:1315 113:33 114:34 115:55 116:57 117:1512 118:70 119:91 120:1932 121:36 122:78 123:127 124:66 125:49 128:624 129:377 130:713 131:1141 132:554 133:218 134:497 135:137 136:741 137:612 138:1034 139:447 140:775 141:428 142:1459 143:875 144:505 145:205 146:685 147:468 148:1022 149:740 150:226 151:891 152:727 153:283 154:2378 155:1045 156:2092 157:491 158:652 159:840 160:632 161:720 162:981 163:423 164:735 165:624 166:563 167:713 168:1485 169:205 170:1865 171:101 172:1585 173:791 174:274 175:101 176:655 177:989 178:647 179:884 180:45 181:2532 182:23 183:1619 184:438 185:3364 186:3441 187:1721 188:1060 189:1983 190:5943 191:543 192:5089 193:1699 194:1121 195:950 196:681 197:1062 198:2672 199:2459 200:4477 201:3594 202:1121 203:824 204:2195 205:1777 206:1497 207:1711 208:1723 209:1974 210:443 211:514 212:1083 213:860 214:979 215:43 216:2455 217:555 218:648 219:29 220:82 221:536 222:37 223:1668 End of report