IPv4 R&E Routing Table Report 23:05 GMT Tue 20 Dec, 2022 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: 901180 Prefixes after maximum aggregation (per Origin AS): 343435 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 443595 Number of IPv4 prefixes with a valid ROA: 365394 Number of IPv4 prefixes with an invalid ROA: 1559 Number of IPv4 prefixes with no ROA: 534227 Total ASes present in the Internet Routing Table: 73731 Prefixes per ASN: 12.22 Origin-only ASes present in the Internet Routing Table: 63327 Origin ASes announcing only one prefix: 26064 Transit ASes present in the Internet Routing Table: 10404 Transit-only ASes present in the Internet Routing Table: 422 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 991 Number of instances of unregistered ASNs: 991 Number of 32-bit ASNs allocated by the RIRs: 40934 Number of 32-bit ASNs visible in the Routing Table: 33825 Prefixes from 32-bit ASNs in the Routing Table: 164733 Number of bogon 32-bit ASNs visible in the Routing Table: 5 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 509 Number of addresses announced to Internet: 3060304384 Equivalent to 182 /8s, 104 /16s and 138 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 303092 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233229 Total APNIC prefixes after maximum aggregation: 67748 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 228051 Unique aggregates announced from the APNIC address blocks: 97272 APNIC Region origin ASes present in the Internet Routing Table: 13093 APNIC Prefixes per ASN: 17.42 APNIC Region origin ASes announcing only one prefix: 3820 APNIC Region transit ASes present in the Internet Routing Table: 1755 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8410 Number of APNIC addresses announced to Internet: 773087232 Equivalent to 46 /8s, 20 /16s and 96 /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, 131072-151865 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: 266282 Total ARIN prefixes after maximum aggregation: 121276 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 267859 Unique aggregates announced from the ARIN address blocks: 129374 ARIN Region origin ASes present in the Internet Routing Table: 18994 ARIN Prefixes per ASN: 14.10 ARIN Region origin ASes announcing only one prefix: 6974 ARIN Region transit ASes present in the Internet Routing Table: 1882 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4689 Number of ARIN addresses announced to Internet: 1287950336 Equivalent to 76 /8s, 196 /16s and 144 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 254602 Total RIPE prefixes after maximum aggregation: 119796 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 251409 Unique aggregates announced from the RIPE address blocks: 155659 RIPE Region origin ASes present in the Internet Routing Table: 28123 RIPE Prefixes per ASN: 8.94 RIPE Region origin ASes announcing only one prefix: 11992 RIPE Region transit ASes present in the Internet Routing Table: 3983 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 40 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10906 Number of RIPE addresses announced to Internet: 714996480 Equivalent to 42 /8s, 157 /16s and 251 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117259 Total LACNIC prefixes after maximum aggregation: 28190 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116569 Unique aggregates announced from the LACNIC address blocks: 48909 LACNIC Region origin ASes present in the Internet Routing Table: 11001 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2676 LACNIC Region transit ASes present in the Internet Routing Table: 2266 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8770 Number of LACNIC addresses announced to Internet: 175876864 Equivalent to 10 /8s, 123 /16s and 171 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 28817 Total AfriNIC prefixes after maximum aggregation: 5674 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 36783 Unique aggregates announced from the AfriNIC address blocks: 11965 AfriNIC Region origin ASes present in the Internet Routing Table: 1711 AfriNIC Prefixes per ASN: 21.50 AfriNIC Region origin ASes announcing only one prefix: 602 AfriNIC Region transit ASes present in the Internet Routing Table: 335 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1050 Number of AfriNIC addresses announced to Internet: 108098304 Equivalent to 6 /8s, 113 /16s and 115 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9155 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5930 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3625 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3520 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3368 1874 94 VNPT-AS-VN VNPT Corp, VN 9498 2679 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2349 849 437 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2284 11250 589 KIXS-AS-KR Korea Telecom, KR 4755 2164 440 215 TATACOMM-AS TATA Communications formerl 45090 2144 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 7753 10637 2922 AMAZON-02, US 11492 4545 301 564 CABLEONE, US 7155 3894 265 33 VIASAT-SP-BACKBONE, US 22773 3696 3065 324 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3520 1320 63 SHAW, CA 16625 3482 1808 2519 AKAMAI-AS, US 749 3026 50577 2293 DNIC-AS-00749, US 7018 2599 24130 1574 ATT-INTERNET4, US 396982 2575 3493 370 GOOGLE-CLOUD-PLATFORM, US 30036 2557 367 412 MEDIACOM-ENTERPRISE-BUSINESS, 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 6938 1706 146 UNI2-AS, ES 39891 4488 264 57 ALJAWWALSTC-AS, SA 20940 4051 3399 175 AKAMAI-ASN1, NL 8551 3698 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2886 2290 906 ROSTELECOM-AS, RU 9009 2649 252 1359 M247, RO 34984 2255 358 611 TELLCOM-AS, TR 6849 2221 339 20 UKRTELNET, UA 58224 1773 928 538 TCI, IR 13188 1610 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 10912 3338 593 Uninet S.A. de C.V., MX 10620 3466 507 852 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2184 357 579 Mega Cable, S.A. de C.V., MX 28573 1340 2327 257 Claro NXT Telecomunicacoes Ltda, BR 6503 1295 339 523 Axtel, S.A.B. de C.V., MX 3816 1291 740 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1153 370 22 Telefonica del Peru S.A.A., PE 11664 1140 186 468 Techtel LMDS Comunicaciones Interactiva 26615 991 2466 43 TIM SA, 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 1550 537 31 RAYA-AS, EG 24863 1535 393 21 LINKdotNET-AS, EG 36992 1362 1520 269 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1010 67 43 ORANGE-COTE-IVOIRE, CI 36935 883 520 42 Vodafone-, EG 6713 613 1863 34 IAM-AS, MA 15399 527 53 45 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 2018 369 319 72 TENET-1, 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 8151 10912 3338 593 Uninet S.A. de C.V., MX 9808 9155 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7753 10637 2922 AMAZON-02, US 12479 6938 1706 146 UNI2-AS, ES 7545 5930 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4545 301 564 CABLEONE, US 39891 4488 264 57 ALJAWWALSTC-AS, SA 20940 4051 3399 175 AKAMAI-ASN1, NL 7155 3894 265 33 VIASAT-SP-BACKBONE, US 8551 3698 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9155 9108 CHINAMOBILE-CN China Mobile Communications Grou 12479 6938 6792 UNI2-AS, ES 7545 5930 5239 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7753 4831 AMAZON-02, US 39891 4488 4431 ALJAWWALSTC-AS, SA 11492 4545 3981 CABLEONE, US 20940 4051 3876 AKAMAI-ASN1, NL 7155 3894 3861 VIASAT-SP-BACKBONE, US 8551 3698 3660 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3625 3604 VIETEL-AS-AP Viettel Group, VN 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 46450 PILOT, US 23.131.188.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE 23.131.190.0/24 Origin: 7018 ATT-INTERNET4, US 23.131.190.0/24 Transit: 6453 AS6453, 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 /9:13 /10:38 /11:100 /12:295 /13:585 /14:1196 /15:2077 /16:13476 /17:8228 /18:13786 /19:24817 /20:42850 /21:50822 /22:108660 /23:96488 /24:537725 /25:0 /26:1 /27:1 /28:0 /29:1 /30:5 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5985 6938 UNI2-AS, ES 8151 4901 10912 Uninet S.A. de C.V., MX 39891 3543 4488 ALJAWWALSTC-AS, SA 11492 3452 4545 CABLEONE, US 6327 3328 3520 SHAW, CA 8551 3163 3698 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 2983 3894 VIASAT-SP-BACKBONE, US 22773 2728 3696 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2216 2557 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2071 2221 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1620 2:1216 3:168 4:5 5:4110 6:110 7:5 8:1535 9:1 11:172 12:1611 13:369 14:2365 15:287 16:76 17:372 18:406 20:243 21:4 22:188 23:5994 24:2443 25:4 27:2704 29:19 31:2496 32:105 34:8 35:95 36:1840 37:4610 38:3923 39:821 40:144 41:3923 42:1041 43:2287 44:303 45:16389 46:4199 47:373 49:1707 50:1927 51:374 52:1541 54:396 55:785 56:8 57:82 58:1679 59:1106 60:1007 61:2424 62:2599 63:1945 64:5634 65:2325 66:4903 67:3031 68:1361 69:4114 70:1255 71:655 72:2990 74:2604 75:1466 76:596 77:2329 78:1821 79:2939 80:2069 81:1684 82:1484 83:1230 84:1495 85:2977 86:743 87:1923 88:1176 89:3514 90:584 91:7610 92:1977 93:2555 94:3517 95:3888 96:1317 97:344 98:1172 99:741 100:75 101:1288 102:2512 103:30587 104:4593 105:468 106:849 107:2539 108:912 109:4329 110:2034 111:3265 112:2025 113:1491 114:1600 115:2009 116:1871 117:2472 118:2286 119:1881 120:1696 121:1036 122:2573 123:2135 124:1535 125:2255 128:1231 129:965 130:959 131:1999 132:829 133:400 134:1889 135:295 136:884 137:918 138:2580 139:1502 140:1021 141:1482 142:1411 143:1442 144:1189 145:352 146:1880 147:1511 148:2271 149:1861 150:861 151:1144 152:1960 153:476 154:3798 155:1419 156:1624 157:1296 158:1036 159:2231 160:2567 161:1426 162:3509 163:1469 164:1675 165:1646 166:817 167:1747 168:3835 169:919 170:4546 171:886 172:3533 173:3053 174:1026 175:1157 176:3619 177:4784 178:3531 179:2146 180:2391 181:3339 182:3229 183:1934 184:2363 185:19963 186:4636 187:3921 188:4052 189:3438 190:9022 191:1465 192:10965 193:8805 194:7162 195:5069 196:3053 197:2415 198:5918 199:6077 200:7658 201:5869 202:10219 203:9998 204:4599 205:3519 206:3764 207:3342 208:4099 209:4804 210:4152 211:2381 212:4035 213:3531 214:1108 215:55 216:6586 217:2636 218:1249 219:408 220:1779 221:953 222:661 223:1993 End of report