Routing Table Report 08:00 +10GMT Fri 20 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399523
Prefixes after maximum aggregation: 170557
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197357
Total ASes present in the Internet Routing Table: 38381
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33087
Origin ASes announcing only one prefix: 15644
Transit ASes present in the Internet Routing Table: 5294
Transit-only ASes present in the Internet Routing Table: 122
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: 1203
Unregistered ASNs in the Routing Table: 221
Number of 32-bit ASNs allocated by the RIRs: 2603
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5533
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2555739392
Equivalent to 152 /8s, 85 /16s and 125 /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: 92.3
Total number of prefixes smaller than registry allocations: 168816
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93900
Total APNIC prefixes after maximum aggregation: 30871
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91387
Unique aggregates announced from the APNIC address blocks: 39702
APNIC Region origin ASes present in the Internet Routing Table: 4637
APNIC Prefixes per ASN: 19.71
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 704
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: 643818240
Equivalent to 38 /8s, 95 /16s and 227 /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: 148607
Total ARIN prefixes after maximum aggregation: 75749
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120101
Unique aggregates announced from the ARIN address blocks: 50312
ARIN Region origin ASes present in the Internet Routing Table: 14990
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: 807261440
Equivalent to 48 /8s, 29 /16s and 213 /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: 101661
Total RIPE prefixes after maximum aggregation: 53595
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93609
Unique aggregates announced from the RIPE address blocks: 58125
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: 2594
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: 509601280
Equivalent to 30 /8s, 95 /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: 39985
Total LACNIC prefixes after maximum aggregation: 8140
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 40011
Unique aggregates announced from the LACNIC address blocks: 20244
LACNIC Region origin ASes present in the Internet Routing Table: 1575
LACNIC Prefixes per ASN: 25.40
LACNIC Region origin ASes announcing only one prefix: 439
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: 99329024
Equivalent to 5 /8s, 235 /16s and 164 /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: 9034
Total AfriNIC prefixes after maximum aggregation: 2134
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 7111
Unique aggregates announced from the AfriNIC address blocks: 2173
AfriNIC Region origin ASes present in the Internet Routing Table: 531
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 31779328
Equivalent to 1 /8s, 228 /16s and 234 /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 1719 503 63 PT Telekomunikasi Indonesia
7545 1668 301 86 TPG Internet Pty Ltd
4755 1572 387 163 TATA Communications formerly
9829 1249 1069 30 National Internet Backbone
9583 1243 94 540 Sify Limited
7552 1104 1062 11 Vietel Corporation
24560 1022 385 167 Bharti Airtel Ltd., Telemedia
4808 989 1945 292 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 3405 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 1411 258 762 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 1671 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 643 666 63 France Telecom Espana SA
20940 632 205 499 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 1780 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 1350 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 839 274 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 3405 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1928 11105 695 Korea Telecom (KIX)
1785 1905 680 129 PaeTec Communications, Inc.
10620 1809 327 176 Types of queries are: POCs, o
28573 1780 1107 59 Types of queries are: POCs, o
17974 1719 503 63 PT Telekomunikasi Indonesia
8402 1671 544 16 Corbina telecom
7545 1668 301 86 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
7029 3405 3236 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1905 1776 PaeTec Communications, Inc.
28573 1780 1721 Types of queries are: POCs, o
17974 1719 1656 PT Telekomunikasi Indonesia
8402 1671 1655 Corbina telecom
10620 1809 1633 Types of queries are: POCs, o
7545 1668 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
37.247.48.0/21 34971 Prometeus di Daniela Agro
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 /15:1483 /16:12170 /17:6243 /18:10444
/19:20613 /20:28777 /21:29604 /22:40039 /23:37515 /24:210428
/25:11 /26:21 /27:20 /28:150 /29:143 /30:67
/31:0 /32:132
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3045 3405 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 1648 1671 Corbina telecom
30036 1357 1411 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)
----------------------------------------------
1:536 2:706 4:14 6:3 8:403 12:1974
13:1 14:600 15:12 16:3 17:7 20:22
23:164 24:1763 27:1256 31:1000 32:52 33:1
34:2 36:8 37:366 38:791 40:120 41:3190
42:134 44:3 46:1480 47:3 49:381 50:528
52:13 54:7 55:8 56:3 57:28 58:914
59:511 60:277 61:1161 62:981 63:1989 64:4144
65:2248 66:4479 67:2019 68:1166 69:3187 70:905
71:487 72:1819 74:2597 75:494 76:318 77:940
78:1004 79:481 80:1209 81:902 82:672 83:548
84:473 85:1197 86:413 87:907 88:345 89:1624
90:291 91:4729 92:525 93:1362 94:1466 95:1147
96:355 97:317 98:900 99:33 100:7 101:168
103:986 106:102 107:188 108:217 109:1283 110:735
111:919 112:423 113:577 114:634 115:870 116:880
117:698 118:905 119:1189 120:346 121:779 122:1614
123:1076 124:1287 125:1262 128:510 129:187 130:248
131:588 132:172 133:22 134:233 135:62 136:211
137:175 138:355 139:145 140:464 141:246 142:368
143:397 144:519 145:69 146:487 147:292 148:745
149:294 150:151 151:175 152:462 153:172 154:7
155:448 156:212 157:335 158:174 159:451 160:337
161:236 162:347 163:178 164:565 165:392 166:572
167:464 168:816 169:126 170:861 171:127 172:2
173:1743 174:562 175:420 176:430 177:667 178:1336
180:1169 181:75 182:782 183:287 184:452 185:1
186:2208 187:1043 188:1181 189:1775 190:5481 192:5959
193:5534 194:4638 195:3580 196:1270 197:131 198:3605
199:4474 200:5709 201:1921 202:8243 203:8483 204:4250
205:2472 206:2664 207:2719 208:4049 209:3595 210:2679
211:1452 212:2002 213:1908 214:832 215:103 216:5096
217:1539 218:528 219:340 220:1225 221:538 222:294
223:322
End of report
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