Routing Table Report 08:00 +10GMT Thu 19 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399517
Prefixes after maximum aggregation: 170434
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197204
Total ASes present in the Internet Routing Table: 38359
Prefixes per ASN: 10.42
Origin-only ASes present in the Internet Routing Table: 33063
Origin ASes announcing only one prefix: 15633
Transit ASes present in the Internet Routing Table: 5296
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1204
Unregistered ASNs in the Routing Table: 222
Number of 32-bit ASNs allocated by the RIRs: 2595
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5525
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2554980096
Equivalent to 152 /8s, 73 /16s and 231 /24s
Percentage of available address space announced: 68.9
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 168864
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93901
Total APNIC prefixes after maximum aggregation: 30850
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91401
Unique aggregates announced from the APNIC address blocks: 39635
APNIC Region origin ASes present in the Internet Routing Table: 4631
APNIC Prefixes per ASN: 19.74
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643795712
Equivalent to 38 /8s, 95 /16s and 139 /24s
Percentage of available APNIC address space announced: 81.6
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: 148606
Total ARIN prefixes after maximum aggregation: 75692
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120071
Unique aggregates announced from the ARIN address blocks: 50255
ARIN Region origin ASes present in the Internet Routing Table: 14987
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5734
ARIN Region transit ASes present in the Internet Routing Table: 1522
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: 807209728
Equivalent to 48 /8s, 29 /16s and 11 /24s
Percentage of available ARIN address space announced: 64.2
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: 101729
Total RIPE prefixes after maximum aggregation: 53580
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93697
Unique aggregates announced from the RIPE address blocks: 58120
RIPE Region origin ASes present in the Internet Routing Table: 16487
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 8044
RIPE Region transit ASes present in the Internet Routing Table: 2592
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 509566464
Equivalent to 30 /8s, 95 /16s and 94 /24s
Percentage of available RIPE address space announced: 82.1
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: 39942
Total LACNIC prefixes after maximum aggregation: 8128
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39959
Unique aggregates announced from the LACNIC address blocks: 20229
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.45
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99187456
Equivalent to 5 /8s, 233 /16s and 123 /24s
Percentage of available LACNIC address space announced: 65.7
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: 8991
Total AfriNIC prefixes after maximum aggregation: 2115
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 7071
Unique aggregates announced from the AfriNIC address blocks: 2155
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 3.4
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: 31670272
Equivalent to 1 /8s, 227 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 47.2
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 1924 11110 696 Korea Telecom (KIX)
17974 1719 503 63 PT Telekomunikasi Indonesia
7545 1670 301 88 TPG Internet Pty Ltd
4755 1572 387 163 TATA Communications formerly
9829 1248 1069 30 National Internet Backbone
9583 1243 94 540 Sify Limited
7552 1104 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 978 1945 283 CNCGROUP IP network China169
18101 948 131 160 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
6389 3428 3807 196 BellSouth.net Inc.
7029 3406 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1905 680 129 PaeTec Communications, Inc.
20115 1640 1565 619 Charter Communications
4323 1598 1060 382 tw telecom holdings, inc.
22773 1575 2910 111 Cox Communications Inc.
30036 1419 259 751 Mediacom Communications Corp
7018 1268 9808 827 AT&T Services, Inc.
11492 1186 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 1656 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 678 188 175 BILISIM TELEKOM
6830 658 2215 427 UPC Broadband
12479 641 664 64 France Telecom Espana SA
20940 631 205 499 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 503 360 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 1809 327 176 Types of queries are: POCs, o
28573 1779 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1361 829 190 Telecom Argentina S.A.
8151 1349 3000 343 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 665 74 98 Telconet S.A
11172 639 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 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 1315 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 MTN Network Solutions
29571 159 15 15 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
6389 3428 3807 196 BellSouth.net Inc.
7029 3406 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1905 680 129 PaeTec Communications, Inc.
10620 1809 327 176 Types of queries are: POCs, o
28573 1779 1107 59 Types of queries are: POCs, o
17974 1719 503 63 PT Telekomunikasi Indonesia
7545 1670 301 88 TPG Internet Pty Ltd
8402 1656 544 16 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3406 3237 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1905 1776 PaeTec Communications, Inc.
28573 1779 1720 Types of queries are: POCs, o
17974 1719 1656 PT Telekomunikasi Indonesia
8402 1656 1640 Corbina telecom
10620 1809 1633 Types of queries are: POCs, o
7545 1670 1582 TPG Internet Pty Ltd
22773 1575 1464 Cox Communications Inc.
6503 1522 1456 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
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.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 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
27.112.114.0/24 23884 Proimage Engineering and Comm
37.235.96.0/20 39392 SuperNetwork s.r.o.
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
/13:459 /14:827 /15:1482 /16:12157 /17:6239 /18:10437
/19:20619 /20:28753 /21:29613 /22:40000 /23:37509 /24:210482
/25:11 /26:21 /27:20 /28:153 /29:145 /30:70
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3046 3406 Windstream Communications Inc
6389 2145 3428 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1809 Types of queries are: POCs, o
8402 1633 1656 Corbina telecom
30036 1365 1419 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1117 1315 TEDATA
1785 1071 1905 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:523 2:695 4:14 6:3 8:403 12:1976
13:1 14:596 15:12 16:3 17:7 20:22
23:163 24:1766 27:1255 31:998 32:52 33:1
34:2 36:8 37:362 38:792 40:120 41:3167
42:131 44:3 46:1485 47:3 49:380 50:534
52:13 54:7 55:11 56:3 57:28 58:913
59:511 60:277 61:1161 62:979 63:1988 64:4148
65:2251 66:4480 67:2019 68:1165 69:3156 70:906
71:487 72:1818 74:2596 75:494 76:320 77:937
78:1010 79:482 80:1204 81:904 82:665 83:549
84:488 85:1194 86:408 87:927 88:344 89:1624
90:292 91:4736 92:524 93:1363 94:1467 95:1140
96:355 97:319 98:895 99:34 100:7 101:168
103:983 106:104 107:187 108:213 109:1287 110:738
111:921 112:444 113:578 114:615 115:870 116:875
117:698 118:907 119:1188 120:346 121:779 122:1623
123:1075 124:1291 125:1262 128:502 129:188 130:248
131:591 132:166 133:22 134:232 135:62 136:210
137:175 138:355 139:145 140:465 141:244 142:368
143:396 144:512 145:131 146:485 147:292 148:745
149:300 150:152 151:176 152:462 153:172 154:7
155:446 156:213 157:335 158:176 159:451 160:336
161:235 162:347 163:178 164:564 165:391 166:572
167:463 168:813 169:126 170:860 171:127 172:2
173:1746 174:587 175:418 176:490 177:665 178:1333
180:1170 181:73 182:794 183:288 184:448 185:1
186:2199 187:1030 188:1184 189:1779 190:5480 192:5950
193:5552 194:4640 195:3582 196:1265 197:128 198:3604
199:4465 200:5702 201:1922 202:8245 203:8495 204:4251
205:2474 206:2663 207:2725 208:4047 209:3597 210:2675
211:1453 212:1990 213:1911 214:831 215:102 216:5078
217:1540 218:528 219:340 220:1225 221:537 222:294
223:320
End of report
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