The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Thursday, December 5, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Fri 06 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 470385
Prefixes after maximum aggregation: 188544
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234804
Total ASes present in the Internet Routing Table: 45501
Prefixes per ASN: 10.34
Origin-only ASes present in the Internet Routing Table: 35458
Origin ASes announcing only one prefix: 16282
Transit ASes present in the Internet Routing Table: 5804
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1116
Unregistered ASNs in the Routing Table: 305
Number of 32-bit ASNs allocated by the RIRs: 5446
Number of 32-bit ASNs visible in the Routing Table: 4239
Prefixes from 32-bit ASNs in the Routing Table: 13161
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1315
Number of addresses announced to Internet: 2656338684
Equivalent to 158 /8s, 84 /16s and 130 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163190

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 111004
Total APNIC prefixes after maximum aggregation: 33474
APNIC Deaggregation factor: 3.32
Prefixes being announced from the APNIC address blocks: 113231
Unique aggregates announced from the APNIC address blocks: 47752
APNIC Region origin ASes present in the Internet Routing Table: 4846
APNIC Prefixes per ASN: 23.37
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 827
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 770
Number of APNIC addresses announced to Internet: 728546300
Equivalent to 43 /8s, 108 /16s and 187 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161924
Total ARIN prefixes after maximum aggregation: 81383
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162708
Unique aggregates announced from the ARIN address blocks: 75683
ARIN Region origin ASes present in the Internet Routing Table: 15889
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6003
ARIN Region transit ASes present in the Internet Routing Table: 1618
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 41
Number of ARIN addresses announced to Internet: 1073005824
Equivalent to 63 /8s, 244 /16s and 197 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119177
Total RIPE prefixes after maximum aggregation: 61042
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122987
Unique aggregates announced from the RIPE address blocks: 78934
RIPE Region origin ASes present in the Internet Routing Table: 17519
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8295
RIPE Region transit ASes present in the Internet Routing Table: 2779
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2507
Number of RIPE addresses announced to Internet: 655887104
Equivalent to 39 /8s, 24 /16s and 11 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52599
Total LACNIC prefixes after maximum aggregation: 9845
LACNIC Deaggregation factor: 5.34
Prefixes being announced from the LACNIC address blocks: 57803
Unique aggregates announced from the LACNIC address blocks: 27362
LACNIC Region origin ASes present in the Internet Routing Table: 2038
LACNIC Prefixes per ASN: 28.36
LACNIC Region origin ASes announcing only one prefix: 556
LACNIC Region transit ASes present in the Internet Routing Table: 382
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 913
Number of LACNIC addresses announced to Internet: 145939200
Equivalent to 8 /8s, 178 /16s and 219 /24s
Percentage of available LACNIC address space announced: 87.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11703
Total AfriNIC prefixes after maximum aggregation: 2577
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12341
Unique aggregates announced from the AfriNIC address blocks: 4032
AfriNIC Region origin ASes present in the Internet Routing Table: 688
AfriNIC Prefixes per ASN: 17.94
AfriNIC Region origin ASes announcing only one prefix: 204
AfriNIC Region transit ASes present in the Internet Routing Table: 136
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48546304
Equivalent to 2 /8s, 228 /16s and 194 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2139 11550 641 Korea Telecom (KIX)
7545 2112 319 109 TPG Internet Pty Ltd
4755 1794 392 190 TATA Communications formerly
9829 1538 1245 45 BSNL National Internet Backbo
9583 1316 103 541 Sify Limited
9498 1218 309 73 BHARTI Airtel Ltd.
7552 1167 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
17816 1051 1005 54 Backbone Network of Jiangsu p

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3040 3688 53 BellSouth.net Inc.
22773 2214 2939 138 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
20115 1684 1657 600 Charter Communications
4323 1648 1114 419 Time Warner Telecom
701 1506 11144 779 MCI Communications Services,
30036 1381 311 581 Mediacom Communications Corp
7018 1333 17779 872 AT&T WorldNet Services
6983 1293 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1903 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1193 452 897 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 784 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3408 1826 111 NET Servicos de Comunicao S.A
10620 2674 433 214 Telmex Colombia S.A.
7303 1733 1153 229 Telecom Argentina Stet-France
18881 1708 908 20 Global Village Telecom
8151 1353 2852 417 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 825 94 91 Telconet S.A
6147 795 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 773 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 871 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 412 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
29571 231 21 15 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3408 1826 111 NET Servicos de Comunicao S.A
6389 3040 3688 53 BellSouth.net Inc.
17974 2720 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2674 433 214 Telmex Colombia S.A.
22773 2214 2939 138 Cox Communications, Inc.
4766 2139 11550 641 Korea Telecom (KIX)
7545 2112 319 109 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
8402 1903 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3040 2987 BellSouth.net Inc.
17974 2720 2632 PT TELEKOMUNIKASI INDONESIA
10620 2674 2460 Telmex Colombia S.A.
22773 2214 2076 Cox Communications, Inc.
7545 2112 2003 TPG Internet Pty Ltd
1785 2048 1917 PaeTec Communications, Inc.
8402 1903 1887 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1708 1688 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:476 /14:936 /15:1644 /16:12857 /17:6788 /18:11191
/19:23105 /20:32947 /21:35688 /22:50351 /23:43889 /24:249886
/25:44 /26:33 /27:50 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3040 BellSouth.net Inc.
8402 1610 1903 OJSC "Vimpelcom"
22773 1467 2214 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1183 1221 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1035 1293 ITC^Deltacom
22561 964 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:919 2:853 3:3 4:17 5:805 6:21
8:611 12:1878 13:3 14:880 15:11 16:3
17:19 18:19 20:25 23:613 24:1750 27:1770
31:1518 32:45 33:2 34:5 36:96 37:1942
38:913 39:5 40:181 41:3247 42:228 44:13
46:2057 47:10 49:701 50:861 52:12 54:44
55:4 56:4 57:26 58:1149 59:580 60:367
61:1466 62:1247 63:1975 64:4399 65:2330 66:4141
67:2102 68:1087 69:3293 70:899 71:503 72:2005
74:2583 75:324 76:304 77:1214 78:1016 79:668
80:1280 81:1052 82:632 83:755 84:585 85:1252
86:382 87:1040 88:545 89:1565 90:155 91:5694
92:612 93:1609 94:2118 95:1519 96:514 97:349
98:1101 99:41 100:33 101:445 103:3774 105:530
106:143 107:223 108:535 109:2009 110:970 111:1107
112:651 113:802 114:744 115:1032 116:1017 117:817
118:1216 119:1283 120:423 121:747 122:1841 123:1268
124:1355 125:1468 128:602 129:224 130:339 131:662
132:347 133:158 134:293 135:72 136:276 137:265
138:352 139:168 140:172 141:340 142:537 143:404
144:498 145:90 146:542 147:425 148:727 149:367
150:154 151:487 152:414 153:207 154:45 155:514
156:305 157:373 158:284 159:695 160:360 161:458
162:908 163:210 164:625 165:577 166:275 167:639
168:1037 169:124 170:1124 171:185 172:11 173:1625
174:667 175:533 176:1306 177:2477 178:1872 179:308
180:1624 181:889 182:1410 183:477 184:619 185:1088
186:2662 187:1446 188:1948 189:1251 190:7273 192:7001
193:5415 194:4033 195:3359 196:1338 197:1035 198:4711
199:5474 200:6053 201:2525 202:8894 203:8929 204:4464
205:2638 206:2803 207:2733 208:3960 209:3657 210:2969
211:1588 212:2179 213:1990 214:885 215:84 216:5396
217:1712 218:635 219:313 220:1272 221:613 222:330
223:553

End of report
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