IPv4 R&E Routing Table Report 23:00 GMT Sun 01 Feb, 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: 1028050 Prefixes after maximum aggregation (per Origin AS): 395344 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507763 Number of IPv4 prefixes with a valid ROA: 614876 Number of IPv4 prefixes with an invalid ROA: 576 Number of IPv4 prefixes with no ROA: 412598 Total ASes present in the Internet Routing Table: 77749 Prefixes per ASN: 13.22 Origin-only ASes present in the Internet Routing Table: 66628 Origin ASes announcing only one prefix: 27151 Transit ASes present in the Internet Routing Table: 11121 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 42 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: 1057 Number of instances of unregistered ASNs: 1086 Number of 32-bit ASNs allocated by the RIRs: 48552 Number of 32-bit ASNs visible in the Routing Table: 39702 Prefixes from 32-bit ASNs in the Routing Table: 221728 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 468 Number of addresses announced to Internet: 3105051392 Equivalent to 185 /8s, 19 /16s and 83 /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: 334621 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280738 Total APNIC prefixes after maximum aggregation: 81823 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267196 Unique aggregates announced from the APNIC address blocks: 107072 APNIC Region origin ASes present in the Internet Routing Table: 14994 APNIC Prefixes per ASN: 17.82 APNIC Region origin ASes announcing only one prefix: 4549 APNIC Region transit ASes present in the Internet Routing Table: 2011 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: 10574 Number of APNIC addresses announced to Internet: 753737984 Equivalent to 44 /8s, 237 /16s and 33 /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: 301033 Total ARIN prefixes after maximum aggregation: 135314 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300757 Unique aggregates announced from the ARIN address blocks: 146268 ARIN Region origin ASes present in the Internet Routing Table: 19355 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7078 ARIN Region transit ASes present in the Internet Routing Table: 1916 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: 5445 Number of ARIN addresses announced to Internet: 1343171328 Equivalent to 80 /8s, 15 /16s and 43 /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: 282758 Total RIPE prefixes after maximum aggregation: 140085 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284834 Unique aggregates announced from the RIPE address blocks: 185195 RIPE Region origin ASes present in the Internet Routing Table: 29161 RIPE Prefixes per ASN: 9.77 RIPE Region origin ASes announcing only one prefix: 12100 RIPE Region transit ASes present in the Internet Routing Table: 4052 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: 12958 Number of RIPE addresses announced to Internet: 733672448 Equivalent to 43 /8s, 186 /16s and 244 /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: 125900 Total LACNIC prefixes after maximum aggregation: 30511 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121766 Unique aggregates announced from the LACNIC address blocks: 49487 LACNIC Region origin ASes present in the Internet Routing Table: 11345 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2563 Average LACNIC Region AS path length visible: 5.4 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: 170887168 Equivalent to 10 /8s, 47 /16s and 136 /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: 36564 Total AfriNIC prefixes after maximum aggregation: 6924 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 53029 Unique aggregates announced from the AfriNIC address blocks: 19360 AfriNIC Region origin ASes present in the Internet Routing Table: 2011 AfriNIC Prefixes per ASN: 26.37 AfriNIC Region origin ASes announcing only one prefix: 739 AfriNIC Region transit ASes present in the Internet Routing Table: 385 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1377 Number of AfriNIC addresses announced to Internet: 103303680 Equivalent to 6 /8s, 40 /16s and 74 /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 13616 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6018 832 568 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4728 544 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4407 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4041 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3726 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3424 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3326 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2967 865 495 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2817 177 553 LCS-AS-AP LARUS Limited, HK 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 14093 38819 5516 AMAZON-02 - Amazon.com, Inc., US 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 174 3691 8768 855 COGENT-174 - Cogent Communications, LLC, 396982 3322 4866 496 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54728 2394 DNIC-AS-00749 - United States Department 16625 2817 1209 2121 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2702 222 893 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 7240 1711 149 UNI2-AS, ES 39891 4901 302 71 ALJAWWALSTC-AS, SA 9009 3901 365 2229 M247, RO 20940 3816 3393 111 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2564 182 1863 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1711 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1595 241 767 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 12686 3298 607 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2483 506 350 Mega Cable, S.A. de C.V., MX 11830 1990 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 1256 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 57 TIM SA, BR 18881 915 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 1843 1532 339 ETISALAT-MISR, EG 24863 1282 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1146 524 47 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 563 48 174 Africa-on-Cloud-AS, ZA 36914 558 82 3 KENET-AS, KE 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 14093 38819 5516 AMAZON-02 - Amazon.com, Inc., US 9808 13616 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12686 3298 607 UNINET, MX 12479 7240 1711 149 UNI2-AS, ES 7545 6018 832 568 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4728 544 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4407 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 13616 13496 CHINAMOBILE-CN China Mobile Communications Grou 8151 12686 12079 UNINET, MX 12479 7240 7091 UNI2-AS, ES 7545 6018 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4778 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4728 4390 BBIL-AP BHARTI Airtel Ltd., IN 18403 4407 4383 FPT-AS-AP FPT Telecom Company, VN 7552 4041 4012 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 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 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 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 /14:1194 /15:2083 /16:13655 /17:8195 /18:13433 /19:24732 /20:45081 /21:52084 /22:113283 /23:106129 /24:647138 /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 6856 12686 UNINET, MX 12479 6168 7240 UNI2-AS, ES 39891 3651 4901 ALJAWWALSTC-AS, SA 11492 3497 4637 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3049 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2511 14093 AMAZON-02 - Amazon.com, Inc., US 30036 2315 2660 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2224 3444 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) ---------------------------------------------- 1:2513 2:1522 3:984 4:9 5:5084 6:184 7:6 8:1496 9:15 11:172 12:1225 13:619 14:2635 15:420 16:179 17:391 18:918 20:597 21:4 22:188 23:8117 24:2625 25:2 27:2812 29:19 31:3443 32:31 34:84 35:291 36:4665 37:4497 38:10396 39:1258 40:441 41:4531 42:1955 43:2995 44:415 45:19745 46:4929 47:400 48:38 49:2201 50:2053 51:598 52:1255 54:238 55:1125 56:11 57:312 58:2344 59:1350 60:1172 61:3149 62:3094 63:1762 64:6184 65:2104 66:6000 67:3236 68:1493 69:4197 70:1036 71:615 72:3103 74:2967 75:1509 76:596 77:2680 78:1924 79:1803 80:2311 81:2150 82:4017 83:1466 84:2021 85:3698 86:1104 87:2246 88:1340 89:4662 90:823 91:8409 92:2863 93:3003 94:4306 95:4550 96:1447 97:312 98:946 99:784 100:69 101:1582 102:4374 103:32959 104:5396 105:796 106:918 107:2833 108:1217 109:4198 110:2308 111:4068 112:3123 113:1978 114:2171 115:2264 116:2192 117:3376 118:2992 119:2107 120:2668 121:1510 122:2958 123:2299 124:1660 125:2988 126:125 128:1654 129:931 130:1557 131:2342 132:773 133:461 134:1620 135:543 136:1632 137:1354 138:2961 139:1615 140:1773 141:1564 142:2473 143:2171 144:1605 145:626 146:2195 147:2268 148:2780 149:2956 150:1328 151:2680 152:2280 153:862 154:9510 155:2298 156:4504 157:2243 158:1504 159:2752 160:3729 161:1998 162:4042 163:2334 164:1972 165:2643 166:1288 167:2224 168:3929 169:907 170:5483 171:1114 172:4562 173:3442 174:891 175:1363 176:3780 177:4738 178:4361 179:2282 180:3113 181:4396 182:3919 183:2827 184:2016 185:21671 186:5564 187:4850 188:4615 189:4480 190:9661 191:1528 192:11449 193:9499 194:7828 195:5638 196:3248 197:3322 198:6070 199:6112 200:8039 201:6380 202:10592 203:10612 204:4700 205:3690 206:4382 207:3812 208:4348 209:5402 210:4735 211:2690 212:4959 213:4035 214:1072 215:54 216:7134 217:3471 218:1625 219:421 220:2187 221:1310 222:931 223:3306 End of report