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 27 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: 1042093 Prefixes after maximum aggregation (per Origin AS): 395382 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 505912 Number of IPv4 prefixes with a valid ROA: 616601 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 425472 Total ASes present in the Internet Routing Table: 77774 Prefixes per ASN: 13.40 Origin-only ASes present in the Internet Routing Table: 66561 Origin ASes announcing only one prefix: 27061 Transit ASes present in the Internet Routing Table: 11213 Transit-only ASes present in the Internet Routing Table: 562 Paths with bogon ASNs present in the IPv4 Routing Table: 80 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: 945 Number of instances of unregistered ASNs: 994 Number of 32-bit ASNs allocated by the RIRs: 48313 Number of 32-bit ASNs visible in the Routing Table: 39579 Prefixes from 32-bit ASNs in the Routing Table: 222352 Number of bogon 32-bit ASNs visible in the Routing Table: 110 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 547 Number of addresses announced to Internet: 3111077797 Equivalent to 185 /8s, 111 /16s and 71 /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: 338055 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 288020 Total APNIC prefixes after maximum aggregation: 81773 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 274584 Unique aggregates announced from the APNIC address blocks: 106458 APNIC Region origin ASes present in the Internet Routing Table: 15031 APNIC Prefixes per ASN: 18.27 APNIC Region origin ASes announcing only one prefix: 4562 APNIC Region transit ASes present in the Internet Routing Table: 2025 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: 10550 Number of APNIC addresses announced to Internet: 758443584 Equivalent to 45 /8s, 52 /16s and 238 /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: 303217 Total ARIN prefixes after maximum aggregation: 134932 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 303270 Unique aggregates announced from the ARIN address blocks: 145586 ARIN Region origin ASes present in the Internet Routing Table: 19383 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7061 ARIN Region transit ASes present in the Internet Routing Table: 1987 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: 5424 Number of ARIN addresses announced to Internet: 1343236096 Equivalent to 80 /8s, 16 /16s and 40 /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: 284817 Total RIPE prefixes after maximum aggregation: 140243 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 285700 Unique aggregates announced from the RIPE address blocks: 184259 RIPE Region origin ASes present in the Internet Routing Table: 29148 RIPE Prefixes per ASN: 9.80 RIPE Region origin ASes announcing only one prefix: 12063 RIPE Region transit ASes present in the Internet Routing Table: 4050 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: 12908 Number of RIPE addresses announced to Internet: 735409921 Equivalent to 43 /8s, 213 /16s and 119 /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: 128234 Total LACNIC prefixes after maximum aggregation: 30897 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123912 Unique aggregates announced from the LACNIC address blocks: 49766 LACNIC Region origin ASes present in the Internet Routing Table: 11340 LACNIC Prefixes per ASN: 10.93 LACNIC Region origin ASes announcing only one prefix: 2661 LACNIC Region transit ASes present in the Internet Routing Table: 2565 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9336 Number of LACNIC addresses announced to Internet: 170496096 Equivalent to 10 /8s, 41 /16s and 144 /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: 36860 Total AfriNIC prefixes after maximum aggregation: 6896 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 54079 Unique aggregates announced from the AfriNIC address blocks: 19437 AfriNIC Region origin ASes present in the Internet Routing Table: 1998 AfriNIC Prefixes per ASN: 27.07 AfriNIC Region origin ASes announcing only one prefix: 714 AfriNIC Region transit ASes present in the Internet Routing Table: 388 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: 1361 Number of AfriNIC addresses announced to Internet: 103212032 Equivalent to 6 /8s, 38 /16s and 228 /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 13526 9074 156 CHINAMOBILE-CN China Mobile Communication 7545 6029 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4841 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4643 542 333 BBIL-AP BHARTI Airtel Ltd., IN 18403 4557 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4408 1873 52 VNPT-AS-VN VNPT Corp, VN 7552 4044 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3536 853 235 CMNET-JIANGSU-AP China Mobile communicati 17561 3179 200 637 LCS-AS-AP LARUS Limited, HK 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 13999 38461 5442 AMAZON-02, US 174 5177 8769 859 COGENT-174, US 22773 4745 3113 374 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4688 311 948 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 82 SHAW, CA 396982 3315 4867 489 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 16625 2864 1228 2142 AKAMAI-AS, US 36352 2701 222 889 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 7285 1711 149 UNI2-AS, ES 39891 4901 302 70 ALJAWWALSTC-AS, SA 9009 3959 369 2268 M247, RO 20940 3866 3395 136 AKAMAI-ASN1, NL 12389 3184 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2568 182 1866 CDNEXT, GB 34984 2419 371 574 TELLCOM-AS, TR 8452 1701 1852 14 TE-AS TE-AS, EG 203020 1617 242 783 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12645 3277 590 UNINET, MX 10620 3434 457 1108 Telmex Colombia S.A., CO 13999 2487 506 351 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1369 2429 273 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1259 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 904 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 1940 402 13 RAYA-AS, EG 36992 1847 1538 336 ETISALAT-MISR, EG 24863 1262 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 37069 1099 1084 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1058 519 30 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 328608 543 48 160 Africa-on-Cloud-AS, ZA 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 13999 38461 5442 AMAZON-02, US 9808 13526 9074 156 CHINAMOBILE-CN China Mobile Communication 8151 12645 3277 590 UNINET, MX 12479 7285 1711 149 UNI2-AS, ES 7545 6029 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5177 8769 859 COGENT-174, US 39891 4901 302 70 ALJAWWALSTC-AS, SA 4538 4841 4192 76 ERX-CERNET-BKB China Education and Resear 22773 4745 3113 374 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4688 311 948 CABLEONE, US 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 13526 13370 CHINAMOBILE-CN China Mobile Communications Grou 8151 12645 12055 UNINET, MX 12479 7285 7136 UNI2-AS, ES 7545 6029 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4831 ALJAWWALSTC-AS, SA 4538 4841 4765 ERX-CERNET-BKB China Education and Research Net 18403 4557 4533 FPT-AS-AP FPT Telecom Company, VN 22773 4745 4371 ASN-CXA-ALL-CCI-22773-RDC, US 45899 4408 4356 VNPT-AS-VN VNPT Corp, VN 174 5177 4318 COGENT-174, US 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 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 21861 UNALLOCATED 12.37.59.0/24 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 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 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 /14:1206 /15:2106 /16:13812 /17:8402 /18:14144 /19:25568 /20:46743 /21:53375 /22:114604 /23:108213 /24:652095 /25:149 /26:112 /27:113 /28:40 /29:66 /30:10 /31:3 /32:285 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6850 12645 UNINET, MX 12479 6216 7285 UNI2-AS, ES 39891 3587 4901 ALJAWWALSTC-AS, SA 11492 3533 4688 CABLEONE, US 6327 3478 3690 SHAW, CA 22773 3051 4745 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2457 13999 AMAZON-02, US 30036 2321 2664 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2214 3434 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) ---------------------------------------------- 1:2508 2:1532 3:978 4:12 5:4994 6:187 7:6 8:1537 9:11 11:172 12:1229 13:600 14:2691 15:417 16:274 17:387 18:914 20:597 21:4 22:188 23:8110 24:2614 25:2 27:2849 29:19 31:3409 32:35 33:1 34:85 35:290 36:4638 37:4535 38:11510 39:1221 40:437 41:4563 42:2109 43:3022 44:412 45:19799 46:5162 47:416 49:2188 50:2060 51:597 52:1258 54:225 55:1125 56:11 57:314 58:2404 59:1409 60:1175 61:3269 62:3137 63:1769 64:6014 65:2123 66:5944 67:3247 68:1504 69:4278 70:1025 71:625 72:3043 74:2948 75:1526 76:597 77:2748 78:1926 79:1810 80:2334 81:2106 82:3952 83:1478 84:2033 85:3655 86:1104 87:2369 88:1364 89:4624 90:838 91:8480 92:2837 93:3028 94:4330 95:4578 96:1470 97:312 98:958 99:782 100:68 101:1350 102:4466 103:32660 104:5467 105:1028 106:938 107:2817 108:1217 109:4307 110:2316 111:4061 112:2849 113:1976 114:2114 115:2339 116:2204 117:3216 118:3045 119:2199 120:2483 121:1587 122:2997 123:2584 124:1743 125:2995 126:125 128:1599 129:953 130:1556 131:2296 132:765 133:462 134:1646 135:539 136:1504 137:1237 138:3062 139:1667 140:1795 141:1565 142:2436 143:2139 144:1392 145:626 146:2201 147:2148 148:2791 149:2970 150:1326 151:2594 152:2262 153:894 154:9797 155:2294 156:4775 157:2267 158:1476 159:2734 160:3761 161:1999 162:3999 163:2345 164:1971 165:2654 166:1310 167:2204 168:3972 169:813 170:5518 171:1121 172:4531 173:3425 174:900 175:1374 176:3788 177:4874 178:4343 179:2350 180:2921 181:4489 182:3890 183:2696 184:2069 185:21788 186:5808 187:4837 188:4545 189:4534 190:9813 191:1573 192:11468 193:9538 194:7942 195:5773 196:3279 197:3285 198:6100 199:6109 200:8286 201:6467 202:11026 203:10916 204:4644 205:3718 206:4495 207:3828 208:4392 209:5459 210:5118 211:2862 212:4976 213:4062 214:1066 215:54 216:7142 217:3475 218:1678 219:621 220:2198 221:1300 222:1021 223:3256 End of report