This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 13 Dec, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1042479 Prefixes after maximum aggregation (per Origin AS): 395140 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 505181 Number of IPv4 prefixes with a valid ROA: 613762 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 428698 Total ASes present in the Internet Routing Table: 77766 Prefixes per ASN: 13.41 Origin-only ASes present in the Internet Routing Table: 66517 Origin ASes announcing only one prefix: 27083 Transit ASes present in the Internet Routing Table: 11249 Transit-only ASes present in the Internet Routing Table: 574 Paths with bogon ASNs present in the IPv4 Routing Table: 82 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 985 Number of instances of unregistered ASNs: 1031 Number of 32-bit ASNs allocated by the RIRs: 48196 Number of 32-bit ASNs visible in the Routing Table: 39518 Prefixes from 32-bit ASNs in the Routing Table: 221887 Number of bogon 32-bit ASNs visible in the Routing Table: 104 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 675 Number of addresses announced to Internet: 3110354597 Equivalent to 185 /8s, 100 /16s and 62 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 338824 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 287358 Total APNIC prefixes after maximum aggregation: 81678 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 274557 Unique aggregates announced from the APNIC address blocks: 106696 APNIC Region origin ASes present in the Internet Routing Table: 15012 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 4562 APNIC Region transit ASes present in the Internet Routing Table: 2034 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10514 Number of APNIC addresses announced to Internet: 758422080 Equivalent to 45 /8s, 52 /16s and 154 /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: 302654 Total ARIN prefixes after maximum aggregation: 134782 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 302631 Unique aggregates announced from the ARIN address blocks: 145780 ARIN Region origin ASes present in the Internet Routing Table: 19383 ARIN Prefixes per ASN: 15.61 ARIN Region origin ASes announcing only one prefix: 7094 ARIN Region transit ASes present in the Internet Routing Table: 1992 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5427 Number of ARIN addresses announced to Internet: 1342595840 Equivalent to 80 /8s, 6 /16s and 99 /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: 286668 Total RIPE prefixes after maximum aggregation: 140174 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 287362 Unique aggregates announced from the RIPE address blocks: 183725 RIPE Region origin ASes present in the Internet Routing Table: 29147 RIPE Prefixes per ASN: 9.86 RIPE Region origin ASes announcing only one prefix: 12064 RIPE Region transit ASes present in the Internet Routing Table: 4059 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12888 Number of RIPE addresses announced to Internet: 735203073 Equivalent to 43 /8s, 210 /16s and 79 /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: 128141 Total LACNIC prefixes after maximum aggregation: 30857 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123960 Unique aggregates announced from the LACNIC address blocks: 49761 LACNIC Region origin ASes present in the Internet Routing Table: 11333 LACNIC Prefixes per ASN: 10.94 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2562 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9333 Number of LACNIC addresses announced to Internet: 170592864 Equivalent to 10 /8s, 43 /16s and 10 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 36673 Total AfriNIC prefixes after maximum aggregation: 6977 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 53293 Unique aggregates announced from the AfriNIC address blocks: 18698 AfriNIC Region origin ASes present in the Internet Routing Table: 1994 AfriNIC Prefixes per ASN: 26.73 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 390 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1356 Number of AfriNIC addresses announced to Internet: 103211264 Equivalent to 6 /8s, 38 /16s and 225 /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 13421 8888 171 CHINAMOBILE-CN China Mobile Communication 7545 6033 833 578 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4935 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4607 541 339 BBIL-AP BHARTI Airtel Ltd., IN 45899 4406 1873 53 VNPT-AS-VN VNPT Corp, VN 18403 4390 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4042 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3730 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3477 848 234 CMNET-JIANGSU-AP China Mobile communicati 24560 2954 865 499 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14141 38434 5408 AMAZON-02, US 22773 4779 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4684 311 949 CABLEONE, US 174 4449 8772 866 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3315 4863 489 GOOGLE-CLOUD-PLATFORM, US 749 3207 54744 2458 DNIC-AS-00749, US 16625 2874 1231 2149 AKAMAI-AS, US 36352 2817 229 906 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7286 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3941 368 2256 M247, RO 20940 3883 3395 136 AKAMAI-ASN1, NL 12389 3183 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2546 181 1846 CDNEXT, GB 34984 2420 363 574 TELLCOM-AS, TR 5384 2390 585 28 EMIRATES-INTERNET Emirates Internet, AE 8452 1686 1852 14 TE-AS TE-AS, EG 203020 1617 242 783 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12684 3293 585 UNINET, MX 10620 3433 457 1107 Telmex Colombia S.A., CO 13999 2513 509 352 Mega Cable, S.A. de C.V., MX 11830 1967 369 65 Instituto Costarricense de Electricidad y 28573 1374 2432 267 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1266 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1022 2486 56 TIM SA, BR 18881 907 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1926 368 14 RAYA-AS, EG 36992 1684 1509 399 ETISALAT-MISR, EG 24863 1259 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1083 1084 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1036 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 558 82 3 KENET-AS, KE 15399 540 56 54 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14141 38434 5408 AMAZON-02, US 9808 13421 8888 171 CHINAMOBILE-CN China Mobile Communication 8151 12684 3293 585 UNINET, MX 12479 7286 1711 149 UNI2-AS, ES 7545 6033 833 578 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4935 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4779 3115 368 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4684 311 949 CABLEONE, US 9498 4607 541 339 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13421 13250 CHINAMOBILE-CN China Mobile Communications Grou 8151 12684 12099 UNINET, MX 12479 7286 7137 UNI2-AS, ES 7545 6033 5455 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4935 4859 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4779 4411 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4390 4366 FPT-AS-AP FPT Telecom Company, VN 45899 4406 4353 VNPT-AS-VN VNPT Corp, VN 9498 4607 4268 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/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, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL, US 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.140.180.0/24 Origin: 401371 DEEP-TO-ONE-INC, US 23.140.180.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:93 /12:300 /13:583 /14:1209 /15:2119 /16:13827 /17:8467 /18:14217 /19:25620 /20:46842 /21:53574 /22:114893 /23:108740 /24:651147 /25:146 /26:112 /27:116 /28:40 /29:66 /30:10 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6876 12684 UNINET, MX 12479 6217 7286 UNI2-AS, ES 11492 3529 4684 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3049 4779 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2423 14141 AMAZON-02, US 30036 2323 2666 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3433 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2503 2:1625 3:968 4:12 5:5055 6:187 7:6 8:1537 9:5 11:172 12:1230 13:542 14:2672 15:415 16:298 17:391 18:914 20:603 21:4 22:188 23:8108 24:2611 25:2 27:2863 29:19 31:3471 32:35 33:1 34:85 35:291 36:4621 37:4588 38:11088 39:1203 40:434 41:4549 42:1985 43:2995 44:416 45:19823 46:5198 47:416 49:2186 50:2060 51:596 52:1509 54:289 55:1083 56:11 57:308 58:2403 59:1413 60:1201 61:3317 62:3131 63:1753 64:6001 65:2117 66:5916 67:3248 68:1495 69:4276 70:1021 71:627 72:3038 74:2945 75:1526 76:597 77:2778 78:1932 79:1804 80:2339 81:2114 82:3867 83:1515 84:2033 85:3653 86:1204 87:2343 88:1348 89:4596 90:836 91:8463 92:2901 93:3034 94:4365 95:4576 96:1479 97:312 98:950 99:778 100:68 101:1365 102:4474 103:32732 104:5495 105:1041 106:934 107:2816 108:1209 109:4306 110:2316 111:3993 112:2820 113:1954 114:2122 115:2370 116:2226 117:3176 118:3016 119:2184 120:2441 121:1591 122:2993 123:2614 124:1758 125:2969 126:125 128:1629 129:978 130:1550 131:2269 132:766 133:462 134:1638 135:538 136:1503 137:1352 138:3047 139:1673 140:1795 141:1559 142:2427 143:2112 144:1375 145:634 146:2200 147:2151 148:2787 149:3004 150:1330 151:2615 152:2273 153:869 154:9571 155:2293 156:4384 157:2252 158:1476 159:2720 160:3765 161:2004 162:4012 163:2346 164:1985 165:2634 166:1306 167:2165 168:3993 169:814 170:5502 171:1124 172:4532 173:3431 174:903 175:1383 176:3807 177:4840 178:4314 179:2359 180:2919 181:4479 182:3877 183:2622 184:2078 185:21753 186:5802 187:4840 188:4474 189:4564 190:9789 191:1587 192:11487 193:9536 194:8003 195:5788 196:3316 197:3185 198:6110 199:6092 200:8299 201:6469 202:10988 203:10873 204:4629 205:3710 206:4474 207:3826 208:4326 209:5418 210:5128 211:2887 212:4955 213:4052 214:1064 215:53 216:7123 217:3530 218:1669 219:624 220:2204 221:1290 222:1036 223:3244 End of report