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.

Tuesday, November 12, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Wed 13 Nov, 2013

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

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

BGP routing table entries examined: 468019
Prefixes after maximum aggregation: 188271
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234306
Total ASes present in the Internet Routing Table: 45343
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35380
Origin ASes announcing only one prefix: 16314
Transit ASes present in the Internet Routing Table: 5840
Transit-only ASes present in the Internet Routing Table: 150
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 17577
Unregistered ASNs in the Routing Table: 1352
Number of 32-bit ASNs allocated by the RIRs: 5333
Number of 32-bit ASNs visible in the Routing Table: 4123
Prefixes from 32-bit ASNs in the Routing Table: 12841
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1057
Number of addresses announced to Internet: 2648358656
Equivalent to 157 /8s, 218 /16s and 191 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 162276

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

Prefixes being announced by APNIC Region ASes: 109359
Total APNIC prefixes after maximum aggregation: 33184
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 111510
Unique aggregates announced from the APNIC address blocks: 47671
APNIC Region origin ASes present in the Internet Routing Table: 4851
APNIC Prefixes per ASN: 22.99
APNIC Region origin ASes announcing only one prefix: 1243
APNIC Region transit ASes present in the Internet Routing Table: 813
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 733
Number of APNIC addresses announced to Internet: 724185600
Equivalent to 43 /8s, 42 /16s and 50 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 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: 162199
Total ARIN prefixes after maximum aggregation: 81431
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163168
Unique aggregates announced from the ARIN address blocks: 75925
ARIN Region origin ASes present in the Internet Routing Table: 15901
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6013
ARIN Region transit ASes present in the Internet Routing Table: 1619
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 21
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1072957440
Equivalent to 63 /8s, 244 /16s and 8 /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: 118832
Total RIPE prefixes after maximum aggregation: 61034
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122509
Unique aggregates announced from the RIPE address blocks: 78935
RIPE Region origin ASes present in the Internet Routing Table: 17494
RIPE Prefixes per ASN: 7.00
RIPE Region origin ASes announcing only one prefix: 8298
RIPE Region transit ASes present in the Internet Routing Table: 2804
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2464
Number of RIPE addresses announced to Internet: 656785152
Equivalent to 39 /8s, 37 /16s and 191 /24s
Percentage of available RIPE address space announced: 95.5

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: 52324
Total LACNIC prefixes after maximum aggregation: 9875
LACNIC Deaggregation factor: 5.30
Prefixes being announced from the LACNIC address blocks: 57382
Unique aggregates announced from the LACNIC address blocks: 26925
LACNIC Region origin ASes present in the Internet Routing Table: 2035
LACNIC Prefixes per ASN: 28.20
LACNIC Region origin ASes announcing only one prefix: 552
LACNIC Region transit ASes present in the Internet Routing Table: 394
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 886
Number of LACNIC addresses announced to Internet: 142765824
Equivalent to 8 /8s, 130 /16s and 111 /24s
Percentage of available LACNIC address space announced: 85.1

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: 11772
Total AfriNIC prefixes after maximum aggregation: 2599
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12392
Unique aggregates announced from the AfriNIC address blocks: 4005
AfriNIC Region origin ASes present in the Internet Routing Table: 686
AfriNIC Prefixes per ASN: 18.06
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 47992832
Equivalent to 2 /8s, 220 /16s and 80 /24s
Percentage of available AfriNIC address space announced: 47.7

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 2712 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2136 11550 644 Korea Telecom (KIX)
7545 2101 319 112 TPG Internet Pty Ltd
4755 1790 392 190 TATA Communications formerly
9829 1543 1245 45 BSNL National Internet Backbo
4808 1281 2188 368 CNCGROUP IP network: China169
9583 1241 94 508 Sify Limited
9498 1213 309 74 BHARTI Airtel Ltd.
7552 1160 1080 13 Vietel Corporation
24560 1094 380 163 Bharti Airtel Ltd., Telemedia

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3054 3688 56 BellSouth.net Inc.
22773 2191 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
20115 1682 1653 607 Charter Communications
4323 1646 1098 419 Time Warner Telecom
701 1507 11147 785 MCI Communications Services,
30036 1386 313 577 Mediacom Communications Corp
7018 1341 17795 881 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

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

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

ASN No of nets /20 equiv MaxAgg Description
8402 1949 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1132 416 863 Akamai Technologies European
31148 1006 44 19 FreeNet ISP
13188 896 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
8551 782 370 41 Bezeq International
6830 776 2328 428 UPC Distribution Services
12479 679 798 55 Uni2 Autonomous System
35228 543 246 16 Avatar Broadband Limited

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

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

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1790 86 NET Servicos de Comunicao S.A
10620 2648 429 233 >>UNKNOWN<<
7303 1728 1150 231 Telecom Argentina Stet-France
18881 1552 908 20 Global Village Telecom
8151 1346 2849 409 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 812 93 89 Telconet S.A
6503 786 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A
26615 749 1749 26 Tim Brasil S.A.

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

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

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 891 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 417 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

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

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

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1790 86 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2712 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2648 429 233 >>UNKNOWN<<
22773 2191 2939 138 Cox Communications, Inc.
4766 2136 11550 644 Korea Telecom (KIX)
7545 2101 319 112 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
8402 1949 544 17 OJSC "Vimpelcom"

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

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

ASN No of nets Net Savings Description
6389 3054 2998 BellSouth.net Inc.
17974 2712 2623 PT TELEKOMUNIKASI INDONESIA
10620 2648 2415 >>UNKNOWN<<
22773 2191 2053 Cox Communications, Inc.
7545 2101 1989 TPG Internet Pty Ltd
8402 1949 1932 OJSC "Vimpelcom"
1785 2028 1902 PaeTec Communications, Inc.
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
4755 1790 1600 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/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
62318 UNALLOCATED 5.160.30.0/24 42337 Respina Networks & B

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

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

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 3257 Tiscali Intl Network
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.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:253
/13:474 /14:916 /15:1600 /16:12756 /17:6681 /18:11181
/19:22998 /20:32746 /21:35451 /22:49700 /23:43686 /24:249396
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1617 1949 OJSC "Vimpelcom"
22773 1454 2191 Cox Communications, Inc.
30036 1231 1386 Mediacom Communications Corp
11492 1189 1227 Cable One
1785 1079 2028 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 966 1243 Digital Teleport, Inc

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

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

1:898 2:851 3:3 4:17 5:1026 6:21
8:617 12:1899 13:3 14:895 15:11 16:3
17:17 18:19 20:21 23:559 24:1742 27:1635
31:1433 32:45 33:2 34:5 36:83 37:1916
38:919 39:5 40:178 41:3247 42:245 44:14
46:2017 47:10 49:674 50:830 52:12 54:42
55:6 56:4 57:26 58:1095 59:571 60:377
61:1464 62:1241 63:1982 64:4344 65:2340 66:4148
67:2114 68:1109 69:3282 70:871 71:489 72:2042
74:2558 75:325 76:296 77:1163 78:1050 79:667
80:1298 81:1034 82:657 83:643 84:587 85:1254
86:413 87:1005 88:557 89:1588 90:150 91:5650
92:616 93:1609 94:2038 95:1637 96:511 97:346
98:1033 99:39 100:30 101:632 103:3570 105:527
106:133 107:213 108:534 109:1950 110:975 111:1111
112:592 113:808 114:745 115:1043 116:1002 117:832
118:1187 119:1277 120:336 121:748 122:1843 123:1260
124:1400 125:1432 128:677 129:229 130:330 131:663
132:375 133:158 134:553 135:72 136:283 137:247
138:351 139:176 140:197 141:331 142:541 143:409
144:497 145:89 146:527 147:408 148:718 149:368
150:138 151:587 152:411 153:206 154:53 155:507
156:294 157:419 158:280 159:693 160:360 161:457
162:850 163:226 164:628 165:585 166:258 167:633
168:1043 169:125 170:1118 171:181 172:27 173:1583
174:686 175:521 176:1305 177:2448 178:1967 179:206
180:1579 181:842 182:1346 183:462 184:669 185:1013
186:2651 187:1475 188:1859 189:1259 190:7134 192:7044
193:5413 194:4042 195:3364 196:1338 197:1065 198:4743
199:5482 200:6080 201:2480 202:8963 203:8901 204:4531
205:2651 206:2838 207:2831 208:4015 209:3656 210:2975
211:1558 212:2134 213:1976 214:902 215:90 216:5407
217:1681 218:628 219:321 220:1273 221:577 222:327
223:504

End of report
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