IPv4 R&E Routing Table Report 23:00 GMT Thu 23 Apr, 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: 1041093 Prefixes after maximum aggregation (per Origin AS): 399486 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 515154 Number of IPv4 prefixes with a valid ROA: 635271 Number of IPv4 prefixes with an invalid ROA: 460 Number of IPv4 prefixes with no ROA: 405362 Total ASes present in the Internet Routing Table: 78288 Prefixes per ASN: 13.30 Origin-only ASes present in the Internet Routing Table: 67106 Origin ASes announcing only one prefix: 27352 Transit ASes present in the Internet Routing Table: 11182 Transit-only ASes present in the Internet Routing Table: 592 Paths with bogon ASNs present in the IPv4 Routing Table: 39 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1095 Number of instances of unregistered ASNs: 1127 Number of 32-bit ASNs allocated by the RIRs: 49469 Number of 32-bit ASNs visible in the Routing Table: 40419 Prefixes from 32-bit ASNs in the Routing Table: 228697 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 486 Number of addresses announced to Internet: 3103308800 Equivalent to 184 /8s, 248 /16s and 188 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 339390 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284302 Total APNIC prefixes after maximum aggregation: 82504 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271206 Unique aggregates announced from the APNIC address blocks: 107840 APNIC Region origin ASes present in the Internet Routing Table: 15151 APNIC Prefixes per ASN: 17.90 APNIC Region origin ASes announcing only one prefix: 4616 APNIC Region transit ASes present in the Internet Routing Table: 2051 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10743 Number of APNIC addresses announced to Internet: 748942080 Equivalent to 44 /8s, 163 /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: 302821 Total ARIN prefixes after maximum aggregation: 135932 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302225 Unique aggregates announced from the ARIN address blocks: 147271 ARIN Region origin ASes present in the Internet Routing Table: 19402 ARIN Prefixes per ASN: 15.58 ARIN Region origin ASes announcing only one prefix: 7116 ARIN Region transit ASes present in the Internet Routing Table: 1900 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5556 Number of ARIN addresses announced to Internet: 1348017664 Equivalent to 80 /8s, 89 /16s and 30 /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: 288003 Total RIPE prefixes after maximum aggregation: 142692 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290769 Unique aggregates announced from the RIPE address blocks: 189947 RIPE Region origin ASes present in the Internet Routing Table: 29404 RIPE Prefixes per ASN: 9.89 RIPE Region origin ASes announcing only one prefix: 12192 RIPE Region transit ASes present in the Internet Routing Table: 4078 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13305 Number of RIPE addresses announced to Internet: 732935680 Equivalent to 43 /8s, 175 /16s and 182 /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: 127775 Total LACNIC prefixes after maximum aggregation: 30730 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122617 Unique aggregates announced from the LACNIC address blocks: 50252 LACNIC Region origin ASes present in the Internet Routing Table: 11369 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2693 LACNIC Region transit ASes present in the Internet Routing Table: 2572 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: 9430 Number of LACNIC addresses announced to Internet: 169967872 Equivalent to 10 /8s, 33 /16s and 129 /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: 37097 Total AfriNIC prefixes after maximum aggregation: 6972 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 53790 Unique aggregates announced from the AfriNIC address blocks: 19465 AfriNIC Region origin ASes present in the Internet Routing Table: 2021 AfriNIC Prefixes per ASN: 26.62 AfriNIC Region origin ASes announcing only one prefix: 735 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1385 Number of AfriNIC addresses announced to Internet: 103231744 Equivalent to 6 /8s, 39 /16s and 49 /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 13851 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5905 827 489 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4927 551 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3686 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3493 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3367 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2966 838 600 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2909 183 490 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 14775 41293 5658 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4664 309 1045 CABLEONE - CABLE ONE, INC., US 7155 3872 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 75 SHAW - Shaw Communications, CA 174 3354 8768 827 COGENT-174 - Cogent Communications, LLC, 396982 3327 4860 501 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2718 222 902 AS-COLOCROSSING - HostPapa, US 30036 2658 365 356 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7165 1711 149 UNI2-AS, ES 39891 4943 305 72 ALJAWWALSTC-AS, SA 9009 3835 354 2257 M247, RO 20940 3795 3389 110 AKAMAI-ASN1, NL 12389 3145 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2769 202 2044 CDNEXT, GB 34984 2451 365 575 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1666 252 832 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12856 3319 619 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2433 506 343 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1439 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1374 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1248 371 22 INTEGRATEL PERU S.A.A., PE 26615 1073 2392 100 TIM SA, BR 22884 1058 70 366 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2024 648 34 RAYA-AS, EG 36992 1858 1533 336 ETISALAT-MISR, EG 24863 1285 389 16 LINKdotNET-AS, EG 36935 1244 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 554 57 58 WANANCHI-, KE 36914 552 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 14775 41293 5658 AMAZON-02 - Amazon.com, Inc., US 9808 13851 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12856 3319 619 UNINET, MX 12479 7165 1711 149 UNI2-AS, ES 7545 5905 827 489 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4927 551 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4777 3100 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4664 309 1045 CABLEONE - CABLE ONE, INC., US 18403 4577 347 26 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 13851 13730 CHINAMOBILE-CN China Mobile Communications Grou 8151 12856 12237 UNINET, MX 12479 7165 7016 UNI2-AS, ES 7545 5905 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4927 4597 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 4551 FPT-AS-AP FPT Telecom Company, VN 22773 4777 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4029 VIETEL-AS-AP Viettel Group, VN 7155 3872 3787 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 198550 UNALLOCATED 2.26.124.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.26.125.0/24 213702 QWINS-LTD QWINS AS-SET: 198550 UNALLOCATED 2.27.12.0/24 207567 INTEZIONET-AS, GB 198550 UNALLOCATED 2.27.13.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.27.14.0/24 209693 OC-NETWORK, GB 198550 UNALLOCATED 2.27.15.0/24 213702 QWINS-LTD QWINS AS-SET: 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 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 /10:39 /11:95 /12:297 /13:582 /14:1188 /15:2095 /16:13575 /17:8244 /18:13263 /19:25402 /20:45633 /21:52332 /22:113445 /23:107349 /24:657524 /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 7034 12856 UNINET, MX 12479 6106 7165 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3528 4664 CABLEONE - CABLE ONE, INC., US 6327 3506 3726 SHAW - Shaw Communications, CA 22773 3051 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2826 3872 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2645 14775 AMAZON-02 - Amazon.com, Inc., US 30036 2311 2658 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2495 2:1868 3:1005 4:5 5:5183 6:199 7:6 8:1491 9:43 11:172 12:1189 13:701 14:2695 15:460 16:199 17:425 18:923 20:582 21:4 22:188 23:8167 24:2779 25:2 27:2819 28:1 29:19 31:3471 32:36 34:90 35:284 36:4700 37:4428 38:10180 39:1287 40:430 41:4570 42:2192 43:3141 44:447 45:19785 46:4876 47:437 48:127 49:2345 50:2015 51:671 52:1318 54:290 55:991 56:11 57:323 58:2361 59:1383 60:1174 61:3154 62:3059 63:1716 64:6343 65:2138 66:6113 67:3265 68:1502 69:4214 70:1061 71:613 72:3206 74:3031 75:1500 76:590 77:2943 78:1993 79:1790 80:2344 81:2231 82:4138 83:1443 84:2135 85:3838 86:1092 87:2385 88:1332 89:4788 90:803 91:8429 92:2805 93:3007 94:4371 95:4716 96:1451 97:314 98:941 99:820 100:70 101:1624 102:4499 103:33015 104:5365 105:862 106:899 107:2891 108:1243 109:4255 110:2287 111:4124 112:3173 113:1968 114:2275 115:2300 116:2165 117:3515 118:3000 119:2081 120:2702 121:1540 122:2991 123:2279 124:1706 125:3011 126:126 128:1565 129:958 130:1634 131:2467 132:846 133:486 134:1672 135:597 136:1587 137:1343 138:3326 139:1615 140:1754 141:1724 142:2534 143:2107 144:1764 145:643 146:2191 147:2235 148:2785 149:3160 150:1388 151:2832 152:2546 153:1351 154:9839 155:2316 156:4436 157:2365 158:1567 159:2866 160:3834 161:1962 162:4046 163:2521 164:2070 165:2665 166:1253 167:2312 168:3998 169:867 170:5595 171:1132 172:4749 173:3475 174:882 175:1367 176:3876 177:4833 178:4370 179:2319 180:3207 181:4547 182:4019 183:2822 184:2032 185:21808 186:5746 187:4982 188:4553 189:4525 190:9830 191:1587 192:11455 193:9637 194:7879 195:5788 196:3355 197:3352 198:6116 199:6069 200:8063 201:6400 202:10662 203:10628 204:4767 205:3685 206:4593 207:3850 208:4371 209:5408 210:4728 211:2684 212:5091 213:4110 214:1044 215:47 216:7288 217:3573 218:1701 219:425 220:2197 221:1340 222:936 223:3436 End of report