Routing Table Report 08:00 +10GMT Sat 21 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399485
Prefixes after maximum aggregation: 170617
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197448
Total ASes present in the Internet Routing Table: 38378
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33076
Origin ASes announcing only one prefix: 15653
Transit ASes present in the Internet Routing Table: 5302
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: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1213
Unregistered ASNs in the Routing Table: 224
Number of 32-bit ASNs allocated by the RIRs: 2611
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5563
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2555890176
Equivalent to 152 /8s, 87 /16s and 202 /24s
Percentage of available address space announced: 69.0
Percentage of allocated address space announced: 69.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 168841
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93876
Total APNIC prefixes after maximum aggregation: 30818
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91369
Unique aggregates announced from the APNIC address blocks: 39711
APNIC Region origin ASes present in the Internet Routing Table: 4637
APNIC Prefixes per ASN: 19.70
APNIC Region origin ASes announcing only one prefix: 1263
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: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643948544
Equivalent to 38 /8s, 97 /16s and 224 /24s
Percentage of available APNIC address space announced: 81.7
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: 148619
Total ARIN prefixes after maximum aggregation: 75777
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120133
Unique aggregates announced from the ARIN address blocks: 50332
ARIN Region origin ASes present in the Internet Routing Table: 14986
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5739
ARIN Region transit ASes present in the Internet Routing Table: 1515
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: 807307776
Equivalent to 48 /8s, 30 /16s and 138 /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: 101680
Total RIPE prefixes after maximum aggregation: 53685
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93686
Unique aggregates announced from the RIPE address blocks: 58191
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: 8043
RIPE Region transit ASes present in the Internet Routing Table: 2603
Average RIPE Region AS path length visible: 3.6
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: 509732352
Equivalent to 30 /8s, 97 /16s and 230 /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: 39872
Total LACNIC prefixes after maximum aggregation: 8130
LACNIC Deaggregation factor: 4.90
Prefixes being announced from the LACNIC address blocks: 39892
Unique aggregates announced from the LACNIC address blocks: 20232
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 25.33
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 289
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: 99305728
Equivalent to 5 /8s, 235 /16s and 73 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9052
Total AfriNIC prefixes after maximum aggregation: 2132
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 7132
Unique aggregates announced from the AfriNIC address blocks: 2184
AfriNIC Region origin ASes present in the Internet Routing Table: 530
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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: 31782400
Equivalent to 1 /8s, 228 /16s and 246 /24s
Percentage of available AfriNIC address space announced: 47.4
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 1928 11105 695 Korea Telecom (KIX)
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1671 301 89 TPG Internet Pty Ltd
4755 1572 387 163 TATA Communications formerly
9829 1249 1069 30 National Internet Backbone
9583 1215 92 519 Sify Limited
7552 1104 1062 11 Vietel Corporation
24560 1022 385 167 Bharti Airtel Ltd., Telemedia
4808 958 1938 287 CNCGROUP IP network China169
18101 947 131 159 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 3403 1016 168 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1904 680 129 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1599 1060 382 tw telecom holdings, inc.
22773 1576 2910 112 Cox Communications Inc.
30036 1411 258 762 Mediacom Communications Corp
7018 1268 13903 826 AT&T Services, Inc.
11492 1185 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 1642 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 679 188 175 BILISIM TELEKOM
6830 658 2215 427 UPC Broadband
12479 643 666 63 France Telecom Espana SA
20940 634 205 500 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 1810 327 176 Types of queries are: POCs, o
28573 1784 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1363 829 188 Telecom Argentina S.A.
8151 1350 3000 343 Uninet S.A. de C.V.
26615 902 697 32 Tim Celular S.A.
27947 661 74 98 Telconet S.A
11172 640 107 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 1314 958 13 TEDATA
24863 837 274 32 LINKdotNET AS number
6713 490 649 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 180 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 3403 1016 168 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1928 11105 695 Korea Telecom (KIX)
1785 1904 680 129 PaeTec Communications, Inc.
10620 1810 327 176 Types of queries are: POCs, o
28573 1784 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1671 301 89 TPG Internet Pty Ltd
8402 1642 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 3403 3235 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1904 1775 PaeTec Communications, Inc.
28573 1784 1725 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
10620 1810 1634 Types of queries are: POCs, o
8402 1642 1626 Corbina telecom
7545 1671 1582 TPG Internet Pty Ltd
22773 1576 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
37.252.112.0/21 35094 Pronea AS
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 /16:12175 /17:6238 /18:10449
/19:20613 /20:28707 /21:29602 /22:40019 /23:37517 /24:210465
/25:11 /26:21 /27:20 /28:152 /29:145 /30:70
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3044 3403 Windstream Communications Inc
6389 2145 3428 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1810 Types of queries are: POCs, o
8402 1619 1642 Corbina telecom
30036 1357 1411 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1116 1314 TEDATA
1785 1070 1904 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:701 4:14 6:3 8:402 12:1972
13:1 14:590 15:12 16:3 17:7 20:23
23:165 24:1763 27:1253 31:1004 32:52 33:2
34:2 36:8 37:368 38:794 40:120 41:3220
42:134 44:3 46:1499 47:3 49:382 50:530
52:13 54:8 55:8 56:3 57:28 58:914
59:512 60:277 61:1162 62:982 63:1987 64:4160
65:2249 66:4479 67:2019 68:1166 69:3187 70:901
71:486 72:1817 74:2594 75:494 76:318 77:941
78:1005 79:481 80:1209 81:902 82:672 83:550
84:472 85:1198 86:417 87:925 88:343 89:1628
90:291 91:4738 92:525 93:1349 94:1465 95:1140
96:355 97:316 98:900 99:33 100:7 101:170
103:985 106:102 107:188 108:219 109:1287 110:736
111:916 112:434 113:579 114:636 115:871 116:882
117:696 118:905 119:1187 120:346 121:779 122:1598
123:1070 124:1285 125:1245 128:507 129:187 130:245
131:581 132:171 133:22 134:232 135:62 136:211
137:174 138:354 139:146 140:465 141:244 142:369
143:393 144:519 145:69 146:486 147:278 148:747
149:294 150:150 151:175 152:462 153:171 154:8
155:452 156:212 157:335 158:174 159:451 160:337
161:237 162:347 163:177 164:566 165:395 166:572
167:467 168:816 169:126 170:861 171:127 172:2
173:1744 174:564 175:421 176:430 177:670 178:1329
180:1168 181:75 182:788 183:288 184:452 185:1
186:2204 187:1042 188:1182 189:1776 190:5481 192:5959
193:5544 194:4644 195:3586 196:1268 197:130 198:3604
199:4475 200:5698 201:1919 202:8248 203:8487 204:4247
205:2475 206:2662 207:2719 208:4051 209:3595 210:2683
211:1453 212:2016 213:1909 214:823 215:103 216:5098
217:1537 218:524 219:332 220:1223 221:538 222:294
223:322
End of report
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