IPv4 R&E Routing Table Report 23:00 GMT Wed 21 Jan, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1025462 Prefixes after maximum aggregation (per Origin AS): 394994 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507384 Number of IPv4 prefixes with a valid ROA: 612647 Number of IPv4 prefixes with an invalid ROA: 574 Number of IPv4 prefixes with no ROA: 412241 Total ASes present in the Internet Routing Table: 77723 Prefixes per ASN: 13.19 Origin-only ASes present in the Internet Routing Table: 66610 Origin ASes announcing only one prefix: 27161 Transit ASes present in the Internet Routing Table: 11113 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 43 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 209 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1034 Number of instances of unregistered ASNs: 1064 Number of 32-bit ASNs allocated by the RIRs: 48441 Number of 32-bit ASNs visible in the Routing Table: 39651 Prefixes from 32-bit ASNs in the Routing Table: 220898 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 475 Number of addresses announced to Internet: 3106100992 Equivalent to 185 /8s, 35 /16s and 87 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 334170 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280251 Total APNIC prefixes after maximum aggregation: 81781 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 266544 Unique aggregates announced from the APNIC address blocks: 107000 APNIC Region origin ASes present in the Internet Routing Table: 14980 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4553 APNIC Region transit ASes present in the Internet Routing Table: 1998 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10562 Number of APNIC addresses announced to Internet: 753700608 Equivalent to 44 /8s, 236 /16s and 143 /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: 299670 Total ARIN prefixes after maximum aggregation: 134952 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 299573 Unique aggregates announced from the ARIN address blocks: 146149 ARIN Region origin ASes present in the Internet Routing Table: 19366 ARIN Prefixes per ASN: 15.47 ARIN Region origin ASes announcing only one prefix: 7071 ARIN Region transit ASes present in the Internet Routing Table: 1926 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5446 Number of ARIN addresses announced to Internet: 1344654336 Equivalent to 80 /8s, 37 /16s and 204 /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: 282325 Total RIPE prefixes after maximum aggregation: 139889 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284135 Unique aggregates announced from the RIPE address blocks: 184542 RIPE Region origin ASes present in the Internet Routing Table: 29125 RIPE Prefixes per ASN: 9.76 RIPE Region origin ASes announcing only one prefix: 12118 RIPE Region transit ASes present in the Internet Routing Table: 4054 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 209 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12917 Number of RIPE addresses announced to Internet: 733506304 Equivalent to 43 /8s, 184 /16s and 107 /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: 125680 Total LACNIC prefixes after maximum aggregation: 30754 LACNIC Deaggregation factor: 4.09 Prefixes being announced from the LACNIC address blocks: 121520 Unique aggregates announced from the LACNIC address blocks: 49704 LACNIC Region origin ASes present in the Internet Routing Table: 11346 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2674 LACNIC Region transit ASes present in the Internet Routing Table: 2548 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9348 Number of LACNIC addresses announced to Internet: 170604032 Equivalent to 10 /8s, 43 /16s and 54 /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: 36502 Total AfriNIC prefixes after maximum aggregation: 6921 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53215 Unique aggregates announced from the AfriNIC address blocks: 19585 AfriNIC Region origin ASes present in the Internet Routing Table: 2013 AfriNIC Prefixes per ASN: 26.44 AfriNIC Region origin ASes announcing only one prefix: 745 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 58 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103348992 Equivalent to 6 /8s, 40 /16s and 251 /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 13521 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6026 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4701 543 342 BBIL-AP BHARTI Airtel Ltd., IN 18403 4451 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4052 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3730 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3418 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3329 1868 98 VNPT-AS-VN VNPT Corp, VN 17561 3145 197 610 LCS-AS-AP LARUS Limited, HK 24560 2958 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13978 38738 5440 AMAZON-02 - Amazon.com, Inc., US 22773 4778 3099 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4635 308 1031 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3698 1321 70 SHAW - Shaw Communications, CA 396982 3330 4868 501 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3147 8768 845 COGENT-174 - Cogent Communications, LLC, 749 3144 54729 2395 DNIC-AS-00749 - United States Department 16625 2813 1208 2117 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2706 222 890 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7239 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3910 365 2235 M247, RO 20940 3815 3393 111 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1860 CDNEXT, GB 34984 2426 372 578 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1607 242 782 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12699 3318 602 UNINET, MX 10620 3440 457 1107 Telmex Colombia S.A., CO 13999 2483 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 56 TIM SA, BR 18881 909 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1983 646 33 RAYA-AS, EG 36992 1841 1532 339 ETISALAT-MISR, EG 24863 1284 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1144 522 45 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 567 82 3 KENET-AS, KE 328608 562 48 173 Africa-on-Cloud-AS, ZA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13978 38738 5440 AMAZON-02 - Amazon.com, Inc., US 9808 13521 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12699 3318 602 UNINET, MX 12479 7239 1711 149 UNI2-AS, ES 7545 6026 833 572 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4778 3099 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4701 543 342 BBIL-AP BHARTI Airtel Ltd., IN 11492 4635 308 1031 CABLEONE - CABLE ONE, INC., US 18403 4451 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13521 13401 CHINAMOBILE-CN China Mobile Communications Grou 8151 12699 12097 UNINET, MX 12479 7239 7090 UNI2-AS, ES 7545 6026 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4451 4427 FPT-AS-AP FPT Telecom Company, VN 22773 4778 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4701 4359 BBIL-AP BHARTI Airtel Ltd., IN 7552 4052 4023 VIETEL-AS-AP Viettel Group, VN 7155 3858 3773 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 5.182.62.0/24 Origin: 214476 CANUS, CH 5.182.62.0/24 Transit: 13030 INIT7, CH 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:40 /11:93 /12:302 /13:578 /14:1196 /15:2088 /16:13672 /17:8190 /18:13458 /19:24724 /20:44677 /21:52021 /22:113184 /23:105864 /24:645345 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6876 12699 UNINET, MX 12479 6169 7239 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4635 CABLEONE - CABLE ONE, INC., US 6327 3479 3698 SHAW - Shaw Communications, CA 22773 3049 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2477 13978 AMAZON-02 - Amazon.com, Inc., US 30036 2308 2650 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2220 3440 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2501 2:1517 3:962 4:9 5:4990 6:183 7:6 8:1489 9:14 11:172 12:1226 13:611 14:2638 15:414 16:179 17:391 18:917 20:596 21:4 22:188 23:8113 24:2629 25:2 27:2816 29:19 31:3423 32:31 34:84 35:290 36:4640 37:4521 38:9877 39:1248 40:438 41:4534 42:1986 43:2986 44:414 45:19726 46:4941 47:400 48:20 49:2195 50:2064 51:598 52:1255 54:233 55:1126 56:11 57:308 58:2343 59:1366 60:1172 61:3125 62:3099 63:1764 64:6193 65:2130 66:5991 67:3254 68:1483 69:4205 70:1029 71:618 72:3089 74:2950 75:1513 76:605 77:2750 78:1923 79:1805 80:2297 81:2121 82:4020 83:1471 84:2020 85:3669 86:1103 87:2233 88:1342 89:4635 90:822 91:8402 92:2852 93:3013 94:4275 95:4510 96:1449 97:312 98:954 99:782 100:69 101:1580 102:4359 103:32920 104:5444 105:793 106:908 107:2823 108:1220 109:4209 110:2311 111:4054 112:3113 113:1978 114:2167 115:2266 116:2182 117:3293 118:2978 119:2117 120:2589 121:1515 122:2956 123:2296 124:1654 125:2979 126:125 128:1579 129:940 130:1542 131:2277 132:766 133:461 134:1618 135:536 136:1630 137:1278 138:2984 139:1614 140:1763 141:1556 142:2471 143:2144 144:1567 145:629 146:2194 147:2273 148:2812 149:2916 150:1330 151:2600 152:2270 153:848 154:9632 155:2294 156:4591 157:2253 158:1501 159:2748 160:3655 161:2001 162:4014 163:2328 164:1971 165:2659 166:1303 167:2198 168:3910 169:860 170:5472 171:1118 172:4566 173:3423 174:891 175:1355 176:3772 177:4711 178:4274 179:2288 180:3134 181:4393 182:3891 183:2751 184:2015 185:21657 186:5520 187:4830 188:4625 189:4499 190:9673 191:1515 192:11430 193:9495 194:7839 195:5684 196:3260 197:3276 198:6060 199:6120 200:8047 201:6389 202:10588 203:10610 204:4706 205:3695 206:4346 207:3806 208:4362 209:5397 210:4729 211:2684 212:4963 213:4048 214:1045 215:54 216:7133 217:3447 218:1621 219:421 220:2192 221:1308 222:902 223:3277 End of report