Routing Table Report 08:00 +10GMT Mon 02 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 397145
Prefixes after maximum aggregation: 169516
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195753
Total ASes present in the Internet Routing Table: 38244
Prefixes per ASN: 10.38
Origin-only ASes present in the Internet Routing Table: 32991
Origin ASes announcing only one prefix: 15507
Transit ASes present in the Internet Routing Table: 5253
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1363
Unregistered ASNs in the Routing Table: 360
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5293
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1280
Number of addresses announced to Internet: 2548460288
Equivalent to 151 /8s, 230 /16s and 107 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 167284
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93252
Total APNIC prefixes after maximum aggregation: 30698
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90662
Unique aggregates announced from the APNIC address blocks: 39277
APNIC Region origin ASes present in the Internet Routing Table: 4633
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642230784
Equivalent to 38 /8s, 71 /16s and 170 /24s
Percentage of available APNIC address space announced: 81.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 147824
Total ARIN prefixes after maximum aggregation: 75255
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119623
Unique aggregates announced from the ARIN address blocks: 49882
ARIN Region origin ASes present in the Internet Routing Table: 14877
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5680
ARIN Region transit ASes present in the Internet Routing Table: 1503
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804164096
Equivalent to 47 /8s, 238 /16s and 146 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 101206
Total RIPE prefixes after maximum aggregation: 53183
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92519
Unique aggregates announced from the RIPE address blocks: 57222
RIPE Region origin ASes present in the Internet Routing Table: 16342
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2582
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502296832
Equivalent to 29 /8s, 240 /16s and 113 /24s
Percentage of available RIPE address space announced: 80.9
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 39703
Total LACNIC prefixes after maximum aggregation: 8025
LACNIC Deaggregation factor: 4.95
Prefixes being announced from the LACNIC address blocks: 39428
Unique aggregates announced from the LACNIC address blocks: 19757
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 25.23
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98681344
Equivalent to 5 /8s, 225 /16s and 194 /24s
Percentage of available LACNIC address space announced: 65.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8833
Total AfriNIC prefixes after maximum aggregation: 2108
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6916
Unique aggregates announced from the AfriNIC address blocks: 2159
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31515904
Equivalent to 1 /8s, 224 /16s and 229 /24s
Percentage of available AfriNIC address space announced: 47.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1929 11106 679 Korea Telecom (KIX)
17974 1703 502 62 PT Telekomunikasi Indonesia
7545 1652 301 88 TPG Internet Pty Ltd
4755 1555 385 157 TATA Communications formerly
9583 1241 95 540 Sify Limited
9829 1208 1025 29 National Internet Backbone
7552 1100 1062 11 Vietel Corporation
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
4808 987 1947 284 CNCGROUP IP network China169
18101 951 131 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3409 1016 168 Windstream Communications Inc
6389 3379 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
1785 1891 680 128 PaeTec Communications, Inc.
20115 1632 1559 624 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1551 2910 111 Cox Communications Inc.
30036 1416 256 746 Mediacom Communications Corp
7018 1286 9807 836 AT&T Services, Inc.
11492 1184 216 364 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1720 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 677 37 9 FreeNet ISP
34984 673 188 174 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 632 205 497 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
8551 504 360 81 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1820 331 131 Types of queries are: POCs, o
28573 1744 1105 60 Types of queries are: POCs, o
6503 1492 418 66 Axtel, S.A.B. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
8151 1346 2999 339 Uninet S.A. de C.V.
26615 902 700 28 Tim Celular S.A.
27947 665 74 100 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 571 242 100 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1296 958 13 TEDATA
24863 846 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 182 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 MTN Network Solutions
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3409 1016 168 Windstream Communications Inc
6389 3379 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
4766 1929 11106 679 Korea Telecom (KIX)
1785 1891 680 128 PaeTec Communications, Inc.
10620 1820 331 131 Types of queries are: POCs, o
28573 1744 1105 60 Types of queries are: POCs, o
8402 1720 544 16 Corbina telecom
17974 1703 502 62 PT Telekomunikasi Indonesia
7545 1652 301 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3379 3182 BellSouth.net Inc.
18566 2093 1914 Covad Communications Co.
1785 1891 1763 PaeTec Communications, Inc.
8402 1720 1704 Corbina telecom
10620 1820 1689 Types of queries are: POCs, o
28573 1744 1684 Types of queries are: POCs, o
17974 1703 1641 PT Telekomunikasi Indonesia
7545 1652 1564 TPG Internet Pty Ltd
22773 1551 1440 Cox Communications Inc.
6503 1492 1426 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:12 /10:28 /11:81 /12:236
/13:455 /14:830 /15:1482 /16:12135 /17:6255 /18:10382
/19:20582 /20:28583 /21:29428 /22:39864 /23:37176 /24:209043
/25:11 /26:21 /27:20 /28:154 /29:142 /30:69
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3054 3409 Windstream Communications Inc
6389 2095 3379 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1709 1820 Types of queries are: POCs, o
8402 1697 1720 Corbina telecom
30036 1360 1416 Mediacom Communications Corp
6503 1254 1492 Axtel, S.A.B. de C.V.
11492 1147 1184 CABLE ONE, INC.
8452 1104 1296 TEDATA
1785 1067 1891 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:705 4:14 6:3 8:395 12:1988
13:1 14:599 15:12 16:3 17:7 20:8
23:158 24:1751 27:1253 31:959 32:53 33:2
34:2 36:8 37:319 38:782 40:120 41:3049
42:132 44:3 46:1456 47:3 49:339 50:536
52:13 54:6 55:9 56:3 57:29 58:915
59:487 60:275 61:1093 62:976 63:1991 64:4138
65:2261 66:4485 67:2021 68:1146 69:3174 70:909
71:466 72:1817 74:2577 75:492 76:317 77:956
78:1002 79:494 80:1207 81:899 82:671 83:547
84:518 85:1193 86:415 87:904 88:342 89:1622
90:297 91:4665 92:517 93:1387 94:1478 95:1155
96:372 97:316 98:831 99:37 100:7 101:164
103:912 106:65 107:180 108:217 109:1258 110:739
111:903 112:433 113:578 114:623 115:774 116:887
117:703 118:903 119:1183 120:338 121:674 122:1626
123:1100 124:1299 125:1259 128:523 129:185 130:251
131:581 132:165 133:21 134:232 135:62 136:210
137:173 138:352 139:144 140:347 141:243 142:368
143:391 144:502 145:66 146:478 147:243 148:745
149:297 150:147 151:176 152:457 153:172 154:6
155:445 156:212 157:335 158:176 159:452 160:342
161:230 162:340 163:179 164:551 165:388 166:561
167:464 168:812 169:126 170:844 171:125 172:4
173:1725 174:577 175:423 176:455 177:625 178:1310
180:1192 181:74 182:751 183:275 184:448 185:1
186:2166 187:1025 188:1186 189:1781 190:5506 192:5958
193:5603 194:4609 195:3585 196:1260 197:123 198:3558
199:4440 200:5704 201:1896 202:8208 203:8488 204:4263
205:2453 206:2661 207:2718 208:4041 209:3576 210:2684
211:1443 212:1997 213:1911 214:875 215:108 216:5051
217:1527 218:525 219:319 220:1226 221:537 222:298
223:315
End of report
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