Routing Table Report 08:00 +10GMT Mon 12 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 393234
Prefixes after maximum aggregation: 168699
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194609
Total ASes present in the Internet Routing Table: 38115
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 32851
Origin ASes announcing only one prefix: 15503
Transit ASes present in the Internet Routing Table: 5264
Transit-only ASes present in the Internet Routing Table: 133
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: 1276
Unregistered ASNs in the Routing Table: 264
Number of 32-bit ASNs allocated by the RIRs: 2313
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4911
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 572
Number of addresses announced to Internet: 2542457088
Equivalent to 151 /8s, 138 /16s and 209 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
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: 165573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92792
Total APNIC prefixes after maximum aggregation: 30451
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90174
Unique aggregates announced from the APNIC address blocks: 39393
APNIC Region origin ASes present in the Internet Routing Table: 4623
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 640696320
Equivalent to 38 /8s, 48 /16s and 64 /24s
Percentage of available APNIC address space announced: 81.3
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: 147201
Total ARIN prefixes after maximum aggregation: 75170
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119028
Unique aggregates announced from the ARIN address blocks: 49818
ARIN Region origin ASes present in the Internet Routing Table: 14859
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5648
ARIN Region transit ASes present in the Internet Routing Table: 1510
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: 805890048
Equivalent to 48 /8s, 8 /16s and 232 /24s
Percentage of available ARIN address space announced: 64.0
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: 100405
Total RIPE prefixes after maximum aggregation: 52818
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92010
Unique aggregates announced from the RIPE address blocks: 56926
RIPE Region origin ASes present in the Internet Routing Table: 16328
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2578
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: 501557248
Equivalent to 29 /8s, 229 /16s and 40 /24s
Percentage of available RIPE address space announced: 80.8
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: 38323
Total LACNIC prefixes after maximum aggregation: 8038
LACNIC Deaggregation factor: 4.77
Prefixes being announced from the LACNIC address blocks: 38183
Unique aggregates announced from the LACNIC address blocks: 19710
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 24.44
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.0
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: 98079488
Equivalent to 5 /8s, 216 /16s and 147 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8733
Total AfriNIC prefixes after maximum aggregation: 2092
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6834
Unique aggregates announced from the AfriNIC address blocks: 2161
AfriNIC Region origin ASes present in the Internet Routing Table: 519
AfriNIC Prefixes per ASN: 13.17
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31547136
Equivalent to 1 /8s, 225 /16s and 95 /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 1932 11107 682 Korea Telecom (KIX)
17974 1656 503 37 PT Telekomunikasi Indonesia
7545 1645 303 88 TPG Internet Pty Ltd
4755 1549 386 161 TATA Communications formerly
9583 1199 91 510 Sify Limited
9829 1188 1001 30 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1010 384 166 Bharti Airtel Ltd., Telemedia
4808 979 1946 280 CNCGROUP IP network China169
18101 949 130 155 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 3450 1040 172 Windstream Communications Inc
6389 3405 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1883 680 127 PaeTec Communications, Inc.
20115 1634 1555 634 Charter Communications
4323 1604 1075 384 tw telecom holdings, inc.
22773 1543 2910 111 Cox Communications Inc.
30036 1420 258 759 Mediacom Communications Corp
7018 1285 9809 846 AT&T Services, Inc.
2386 1163 493 860 AT&T Data Communications Serv
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 1703 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1087 2184 60 NEUF CEGETEL (formerly LDCOM
34984 658 188 170 BILISIM TELEKOM
6830 640 1927 411 UPC Broadband
12479 640 648 54 France Telecom Espana SA
20940 624 202 486 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
31148 540 37 9 FreeNet ISP
3320 532 8442 398 Deutsche Telekom AG
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 1761 326 160 Types of queries are: POCs, o
28573 1686 1092 57 Types of queries are: POCs, o
8151 1343 2994 340 Uninet S.A. de C.V.
7303 1329 823 184 Telecom Argentina S.A.
26615 899 672 33 Tim Celular S.A.
27947 655 68 110 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 582 322 17 Types of queries are: POCs, o
3816 560 240 92 Types of queries are: POCs, o
6503 557 418 66 Axtel, S.A.B. de C.V.
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 1252 958 13 TEDATA
24863 831 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 182 80 8 RAYA Telecom - Egypt
33776 161 12 16 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 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 3450 1040 172 Windstream Communications Inc
6389 3405 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1932 11107 682 Korea Telecom (KIX)
1785 1883 680 127 PaeTec Communications, Inc.
10620 1761 326 160 Types of queries are: POCs, o
8402 1703 544 16 Corbina telecom
28573 1686 1092 57 Types of queries are: POCs, o
17974 1656 503 37 PT Telekomunikasi Indonesia
7545 1645 303 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 3405 3206 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1883 1756 PaeTec Communications, Inc.
8402 1703 1687 Corbina telecom
28573 1686 1629 Types of queries are: POCs, o
17974 1656 1619 PT Telekomunikasi Indonesia
10620 1761 1601 Types of queries are: POCs, o
7545 1645 1557 TPG Internet Pty Ltd
22773 1543 1432 Cox Communications Inc.
2118 1421 1408 EUnet/RELCOM Autonomous Syste
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
23.27.0.0/20 54500 EGIHosting
23.27.0.0/16 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
/13:458 /14:816 /15:1472 /16:12121 /17:6210 /18:10356
/19:20465 /20:28412 /21:29072 /22:39459 /23:36828 /24:206651
/25:11 /26:20 /27:20 /28:151 /29:135 /30:65
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3088 3450 Windstream Communications Inc
6389 2102 3405 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1681 1703 Corbina telecom
10620 1658 1761 Types of queries are: POCs, o
30036 1369 1420 Mediacom Communications Corp
11492 1125 1162 CABLE ONE, INC.
1785 1064 1883 PaeTec Communications, Inc.
8452 1062 1252 TEDATA
15557 1034 1087 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:520 2:704 4:14 8:392 12:1960 13:1
14:594 15:12 16:3 17:7 20:8 23:140
24:1744 27:1229 31:982 32:57 33:1 34:2
36:9 37:236 38:772 40:117 41:3002 42:127
44:3 46:1402 47:3 49:337 50:512 52:13
54:5 55:9 56:3 57:36 58:910 59:485
60:280 61:1085 62:974 63:2006 64:4115 65:2226
66:4467 67:2032 68:1157 69:3145 70:883 71:312
72:1739 74:2571 75:469 76:320 77:972 78:949
79:478 80:1207 81:883 82:633 83:537 84:607
85:1187 86:734 87:915 88:334 89:1564 90:285
91:4544 92:515 93:1394 94:1373 95:1097 96:370
97:316 98:829 99:38 100:5 101:146 103:878
106:63 107:172 108:195 109:1535 110:716 111:860
112:427 113:537 114:607 115:767 116:854 117:704
118:904 119:1246 120:328 121:663 122:1585 123:1080
124:1295 125:1335 128:501 129:183 130:257 131:588
132:161 133:21 134:226 135:63 136:210 137:181
138:275 139:144 140:465 141:235 142:371 143:410
144:497 145:69 146:486 147:242 148:705 149:299
150:154 151:176 152:447 153:171 154:6 155:444
156:209 157:337 158:162 159:446 160:328 161:227
162:341 163:176 164:527 165:395 166:563 167:463
168:805 169:147 170:842 171:117 172:4 173:1716
174:597 175:421 176:540 177:534 178:1285 180:1190
181:67 182:756 183:285 184:443 185:1 186:2105
187:847 188:1052 189:1205 190:5512 192:5945 193:5574
194:4364 195:3391 196:1267 197:168 198:3578 199:4398
200:5637 201:1762 202:8164 203:8585 204:4279 205:2433
206:2657 207:2721 208:4047 209:3580 210:2685 211:1440
212:1968 213:1869 214:855 215:100 216:5010 217:1527
218:525 219:326 220:1224 221:536 222:297 223:312
End of report